Publication List


2024


M.M. Hedman, M.S. Tiscareno, M.R. Showalter, L.N. Fletcher, O.R.T. King, J. Harkett, M.T. Roman, N. Rowe-Gurney, H.B. Hammel, S.N. Milam, M. El Moutamid, R.J. Cartwright, I. de Pater, E.M. Molter. Water-Ice Dominated Spectra of Saturn's Rings and Small Moons JGR Planets 129:e2023JE008236 (2024) [arXiv] [PDF]

I.J. Daubar, A.G. Hayes, G.C. Collins, K.L. Craft, J.A. Rathbun, J.R. Spencer, D.Y. Wyrick, M.T. Bland, A.G. Davies, C.M. Ernst, S.M. Howell, E.J. Leonard, A.S. McEwen, J.M. Moore, C.B. Phillips, L.M. Prockter, L.C. Quick, J.E.C. Scully, J.M. Soderblom, S.M. Brooks, M. Cable, M.E. Cameron, K. Chan, C.J. Chivers, M. Choukroun, C.J. Cochranem S. Diniega, A.J. Dombard, C.M. Elder, C. Gerekos, C. Glein, T.K. Greathouse, C. Grima, M.S. Gudipati, K.P. Hand, C. Hansen, P. Hayne, M. Hedman, K. Hughson, X. Jia, J. Lawrence, H.M. Meyer, J. Miller, R. Parekh, G.W. Patterson, D.M. Persaud, S. Piqueux, K.D. Retherford, K.M. Scanlan, P. Schenk, B. Schmidt, D. Schroder, G. Steinbruegge, A. Stern, G. Tobie, P. Withers, D.A. Young, B. Buratti, H. Korth, D. Senske, R. Pappalardo. Planned Geological Investigations of the Europa Clipper Mission SSR 220:18 (2024) [PDF]

R.G. French, M.M. Hedman, P.D. Nicholson, P.-Y. Longaretti, C.A. McGhee-French The Uranus system from occultation observations (1977-2006): Rings, pole direction, gravity field and masses of Cressida, Cordelia and Ophelia Icarus 411:115957 (2024) [arXiv] [PDF]


2023


L.N. Fletcher, O.R.T. King, J. Harkett, H.B. Hammel, M.T. Roman, H. Melin, M.M. Hedman, J.I. Moses, S. Guerlet, S.N. Milam, M.S. Tiscareno. Saturn's atmosphere in northern summer revealed by JWST/MIRI. JGR Planets 128:e2023JE007924 (2023) [arXiv] [PDF]

R.G. French, P.D. Nicholson, C.A. McGhee-French, P.-Y. Longaretti, M.M. Hedman, J. Colwell, E.A. Marouf, N. Rappaport, S. Flury, J. Fong, R. Maguire, G. Steranka. The complex shape of the outer edge of Saturn's B ring, as observed in Cassini occultation data. Icarus 405:115678 (2023) [PDF]

J.H. Roberts, W.B. McKinnon, C.M. Elder, G. tobie, J.B. Biersteker, D. Young, R.S. Park, G. Steinbrugge, F. Nimmo, S.M. Howell, J.C. Castillo-Rogez, M.L. Cable, J.N. Abrahams, M.T. Bland, C. Chivers, C.J. Cochrane, A.J. Dombard, C. Ernst, A. Genova, C. Gerekos, C. Glein, C.D. Harris, H. Hay, P.O. Hayne, M.M. Hedman, H. Hussman, X. Jia, J. Khurana, W.S. Kiefer, R. Kirk, M. Kivelson, J. Lawrence, E.J. Leonard, J.I. Lunine, E. Mazarico, T.B. McCord, A. McEwen, C. Paty, L. C. Quick, C.A. Raymond, K.D. Retherford, L. Roth, A. Rymer, J. Saur, K. Scanlan, D.M. Schroeder, D.A. Senske, W. Shao, K. Soderlund, E. Spiers, M.J. Styczinski, P. Tortora, S.D. Vance, M.N. Villarreal, B.P. Weiss, J.H. Westlake, P. Withers, N. Woldenbarger, B. Buratti, H. Korth, R.T. Pappalardo, The Interior Thematic Working Group. Exploring the interior of Europa with Europa Clipper SSR 219:46 (2023) [PDF]

I. de Pater, E. Lellouch, D.F. Strobel, K. de Kleer, T. Fouchet, M.H. Wong, B.J. Holler, J. Stansberry, P.M. Fry, M.E. Brown, D. Bockelee-Morvan, S.K. Trumbo, L.N. Fletcher, M.M. Hedman, E.M. Molter, M. Showalter, M.S. Tiscareno, S. Cazaux, R. Hueso, S. Luszcz-Cook, H. Melin, C. Moeckel, A. Mura, G. Orton, L. Roth, J. Saur, F. Tosi. An energetic eruption with associated SO 1.707 micron emissions at Io's Kanehekili fluctus and a brightening event at Loki patera observed by JWST JGR Planets 128:8 e2023JE007872 (2023) [PDF]

H. Sharma, M.M. Hedman, S. Vahidinia. New insights into variations in Enceladus plume particle launch velocities from Cassini-VIMS spectral data PSJ 4:108 (2023) [arXiv] [PDF]

M.M. Hedman, I. Regan, T. Becker, S.M. Brooks, I. de Pater, M. Showlater. Examining Uranus' Zeta Ring in Voyager 2 Wide-Angle -Camera Observations: Quantifying the Ring's Structure in 1986 and Its Modifications Prior to the Year 2007 PSJ 4:104 (2023) [arXiv] [PDF]

G.L. Villanueva, H.B. Hammel, S.N. Milam, V. Kofman, S. Faggi, C.R. Glein, R. Cartwright, L. Roth, K.P. Hand, L. Pganini, J. Spencer, J. Stansberry, B. Holler, N. Rowe-Gurney, S. Protopapa, G. Strazzulla, G. Luzzi, G. Cruz-Mermy, M. El Moutamid, M.M. Hedman, K. Denny. JWST molecular mapping and characterization of Enceladus' water plume feeding its torus. Nature Astronomy (2023) [arXiv] [PDF]

M.M. Hedman. A planetary ring in a surprising place. Nature (News and Views) 614:232-233 (2023) [PDF]

A.A. Simon, M.M. Hedman, P.D. Nicholson, M.R. Showalter, T. McDonald, S. Callos. Hubble Detects the Start of a New Saturn Ring Spoke Season GRL 50:e2022GL101904 (2023) [PDF]

P.D. Nicholson, R.G. French, C.A. McGhee-French, P.-Y. Longaretti, M.M. Hedman, M. El Moutamid, J. Colwell, E.A. Marouf, N. Rappaport, S. Flury, J. Fong, R. Maguire, G. Steranka. The seven-lobed shape of the outer edge of Saturn's A ring Icarus 390:115287 (2023) [PDF]

2022


J.A. A'Hearn, M.M. Hedman, C.R. Mankovich, H. Aromona, M.S. Marley. Ring Seismology of the Ice Giants Uranus and Neptune PSJ 3:194 (2022) [arXiv] [PDF]

C. Paranicas, E. Roussos, K. Dialynas, P. Kollmann, N. Krupp, M.M. Hedman, R.C. Allen, G. Hospodarsky. The Electric Field outward of Saturn's Main Rings ApJ 934:11 (2022) [PDF]

M.M. Hedman, P.D. Nicholson, M. El Moutamid, S. Smotherman. Kronoseismology. VI. Reading the Recent History of Saturn's Gravity Field in Its Rings PSJ 3:61 (2022) [arXiv] [PDF]

I.J. Cohen, C. Beddingfield, R. Chancia, G. DiBraccio, M.M. Hedman, S. MaKenzie, B. Mauk, K.M. Sayanagi, K.M. Soderlund, E. Turtle, C. Ahrens, C.S. Arridge, S.M. Brooks, E. Bunce, S. Charnoz, A. Coustenism R.A. Dillman, S. Dutta, L.N. Fletcher, R. Harbison, R. Helled, R. Holme, L. Jozwiak, Y. Kasaba, P. Kollmann, S. Luzcz-Cook, K. Mandt, O. Moussism A. Mura, G. Murakami, M. Parisim A. Rymer, S. Stanley, K. Stephan, R.J. Vervack, M.H. Wong, P. Wurz The Case for a New Frontiers-Class Uranus Orbiter: System Science at an Underexplored and Unique World with a Mid-scale Mission PSJ 3:58 (2022) [PDF]

M. Parisi, M. Vaquero, M.M. Hedman, M.S. Tiscareno. Gravity Investigation of Saturn's Inner System with the Innovative Skimmer Concept PSJ 3:19 (2022) [PDF]

2021


H. Sharma, M.M. Hedman, D.H. Wooden, A. Colaprete, A.M. Cook Constraining Low-Altitude Lunar Dust Using the LADEE-UVS Data JGR Planets 126 e2021JE006935 (2021) [arXiv] [PDF]

R.G. French, B. Bridges, M.M. Hedman, P.D. Nicholson, C. Mankovich, C.A. McGhee-French. Kronoseismology V: A panoply of waves in Saturn's C ring driven by high-order internal planetary oscillations Icarus 370:114660 (2021) [arXiv] [PDF]

A.M. Rymer, K.D. Runyon, B. Clyde, J.I. Núñez, R. Nkoukar, K.M. Soderund, K. Sayanagi, M. Hifstadterm L.C. Quick, S.A. Stern, T. Becker, M.M. Hedman, I. Cohen, F. Crary, J.J. Fortney, J. Vertesi, C. Hansen, I. de Pater, C. Paty, T. Spilker, T. Stollard, G.B. Hospodarsky, H.T. Smith, H. Wakeford, S.E. Moran, A. Annex, P. Schenk, M. Ozimek, J. Arrietam R.L. McNutt, A. Masters, A.A. Simon, S. Ensor, C.T. Apland, J. Bruzzim D.A. Patthoff, C. Scott, C. Campo, C. Krupiarz, C.J. Cochrane, C. Gantz, D. Rodriguez, D. Gallagher, D. Hurley, D. Crowley, E. Abel, E. Provovornikoca, E.P. Turtle, G. Clark, J. Wilkes, J. Hunt, J.H. Roberts, J. rehm, K. Murray, L. Wolarth, L.N. Fletcherm L. Spilker E.S. Martin, M. Parisism M. Norkus, N. Izenberg, R. Stough, R.J. Vervack, K. Mandt, K.B. Stevenson, S. Kijewski, W. Cheng, J.D. Feldman, G. Allen, D. Prabhu, S. Dutta, C. Young, J Williams Neptune Odyssey: A Flagship Concept for the Exploration of the Neptune-Triton System PSJ 2:184 (2021) [PDF]

M.M. Hedman, M. Young. Evidence that a Novel Type of Satellite Wake Might Exist in Saturn's E Ring PSJ 2:127 (2021) [arXiv] [PDF]

M.M. Hedman, R.O. Chancia. Uranus's Hidden Narrow Rings PSJ 2:107 (2021) [arXiv] [PDF]

J.A. A'Hearn, M.M. Hedman, D.P. Hamilton. Modeling Saturn's D68 Clumps as a Co-orbital Satellite System PSJ 2:74 (2021) [arXiv] [PDF]

2020


M.M. Hedman, B. Bridges. Changes in a Dusty Ringlet in the Cassini Division after 2010 PSJ 1:43 (2020) [arXiv] [PDF]

L.C. Quick, A. Roberge, A.Barr Milnar, M.M. Hedman Forecasting Rates of Volcanic Activity on Terrestrial Exoplanets and Implications for Cryovolcanic Activity on Extrasolar Ocean Worlds. PASP 132"1014 (2020) [PDF]

R.G. Jerousek, J.E. Colwell, M.M. Hedman, R.G. French, E.A. Marouf, L.W. Esposito, P.D. Nicholson Saturn's C ring and Cassini division: Particle sizes from Cassini UVIS, VIMS and RSS occultations. Icarus 344:113365 (2020) [PDF]

P.D. Nicholson, T. Ansty, M.M. Hedman, D. Creel, J. Ahlers, R.A. Harbison, R.H. Brown, R.N . Clark, K.H. Baines, B.J. Buratti, C. Sotin, S.V. Badman. Occultation observations of Saturn's rings with Cassini VIMS. Icarus 344:113356 (2020) [arXiv] [PDF]

M.M. Hedman, P. Helfenstein, R.O. Chancia, P. Thomas, E. Roussos, C. Paranicas, A.J. Verbiscer. Photometric Analyses of Saturn's Small Moons: Aegaeon, Methone and Pallene are Dark; Helene and Calypso are Bright. AJ 159:129 (2020) [arXiv] [PDF]

S.M. Kreyche, J.W. Barnes, B.L. Quarles, J.J. Lissauer, J.E. Chambers, M.M. Hedman. retrograde-rotating exoplanets experience obliquity excitations in an eccentricity-enabled resonance. PSJ 1:8 (2020) [arXiv] [PDF]

L.C. Quick, M.M. Hedman Characterizing deposits emplaced by cryopvolcanic plumes on Europa Icarus 343:113667 (2020) [arXiv] [PDF]

R.G. French, C.A. McGhee-French, P.D. Nicholson, M.M. Hedman, N.J. Rappaport, E.A. Marouf, P.-Y. Longaretti, J. Hahn Unusual one-armed density waves in the Cassini Division of Saturn's rings. Icarus 339:113600 (2020) [PDF]

K.E. Miller, J.H. Waite Jr., R.S. Perryman, M.E. Perry, A. Bouquet, B.A. Magee, B. Solton, T. Brockwell, M.M. Hedman, C.R. Glein. Cassini INMS constraints on the composition and latitudinal fractionation of Saturn ring rain material. Icarus 339:113595 (2020) [PDF]

2019


M. Hofstadter, A. Simon, S. Atreya, D. Banfield, J.J. Fortney, A. Hayes, M.M. Hedman, G. Hospodarsky, K. Mand, A. Masters, M. Showalter, K.M. Soderlund, D. Turrini, E. Turtle, K. Reh, J. Elliott, N. Arora, A. Petropoulos, The Ice Giant Mission Study Team. Uranus and Neptune missions: A study in advance of the next Planetary Science Decadal Survey P&SS 177:104680 (2019) [PDF]

R.D. Dhingra, J.W. Barnes, M.M. Hedman, J. Radebaugh. Using Elliptical Fourier Descriptor Analysis (EFDA) to Quantify Titan Lake Morphology ApJ 158:6 (2019) [PDF]

J.A. A'Hearn, M.M. Hedman, M. El Moutamid. Dynamics of multiple bodies in a corotation resonance: Conserved quantities and relevance to ring arcs. ApJ 882:66 (2019) [arXiv] [PDF]

M.S. Tiscareno, P.D. Nicholson, J.N. Cuzzi, L.J. Spilker, C.D. Murray, M.M. Hedman, J.E. Colwell, J.A. Burns, S.M. Brooks, R.N. Clark, N.J. Cooper, E. Deau, C. Ferrari, G. Filacchione, R.G. Jerousek, S. Le Mouelic, R. Morishima, S. Pilorz, S. Rodriguez, M.R. Showalter, S.V. Badman, E.J. Baker, B.J. Buratti, K.H. Baines, C. Sotin. Close-range remote sensing of Saturn's rings during Cassini's ring-grazing orbits and Grand Finale. Science 364:eaau1017 (2019) [PDF] [SOM]

S.M. MacKenzie, J.W. Barnes, J.D. Hofgartner, S.P.D. Birch, M.M. Hedman, A Lucas, S. Rodriguez, E.P. Turtle, C. Sotin. The case for seasonal surface changes at Titan's lake district. Nature Astronomy 3:506-510 (2019) [PDF]

R.O. Chancia, M.M. Hedman, S.W.H. Cowley, G. Provan, S.-Y. Ye. Seasonal structures in Saturn's dusty Roche Division correspond to periodicities of the planet's magnetosphere. Icarus 330:230-255 (2019) [arXiv] [PDF]

M.M. Hedman. Using cosmogenic Lithium, Beryllium and Boron to determine the surface ages of icy objects in the outer solar system. Icarus 330:1-4 (2019) [arXiv] [PDF]

M.M. Hedman, P.D. Nicholson. Axisymmetric density waves in Saturn's rings. Monthly Notices of the Royal Astronomical Society 485:13-29 (2019) [arXiv] [PDF]

M.M. Hedman. Bright clumps in the D68 ringlet near the end of the Cassini Mission. Icarus 323:62-75 (2019) [arXiv] [PDF] [Profiles in Figure 2] [Profiles in Figure 5] [Profiles in Figure 6]

M.M. Hedman, P.D. Nicholson, R.G. French. Kronoseismology. IV. Six previously unidentified waves in Saturn's middle C ring. The Astronomical Jounral 157:18 (2019) [arXiv] [PDF]

R.G. French, C.A. McGhee-French, P.D. Nicholson, M.M. Hedman. Kronoseismology III: Waves in Saturn's inner C ring. Icarus 319:599-626 (2019) [PDF]

M. Ciarniello, G. Filacchione, E. D'Aversa, F. Capaccioni, P.D. Nicholson, J.N. Cuzzi, R.N. Clark, M.M. Hedman, C.M. Dalle Ore, P. Cerroni, C. Plainaki, L.J. Spilker. Cassini-VIMS observations of Saturn's main rings: II. A spectrophotometric study by means of Monte Carlo ray-tracing and Hapke's theory. Icarus 317:242-265 (2019) [PDF]

2018


J.H. Waite Jr., R.S. Perryman, M.E. Perry, K.E. Miller, J. Bell, T.E. Cravens, C.R. Glein, J. Grimes, M.M. Hedman, J. Cuzzi, T. Brockwell, B. Teolis, L. Moore, D.G. Mitchell, A. Persoon, W.S. Kurth, J.-E. Wahlund, M. Morooka, L.Z. Hadid, S. Chocron, J. Walker, A. Nagy, R. Yekem S. Ledvina, R. Johnson, W. Tseng, O.J. Tucker, W.-H. Ip. Chemical interactions between Saturn's atmosphere and its rings Science 45:eaat2382 (2018) [PDF]

M. E. Perry, J.H. Waite Jr., D.G. Mitchell, K.E. Miller, T.E. Cravens, R.S. Perryman, L. Moore, R.V. Yelle, H.-W. Hsu, M.M. Hedman, J.N. Cuzzi, D.F. Strobel, O.Q. Hamil, C.R. Glein, L.J. Paxton, B.D. Teolis, R.L. McNutt H Jr. Material flux from the rings of Saturn into its atmosphere. Geophysics Research Letters 45 DOI 10.1029/2018GL078575 (2018) [PDF]

L.Z. Hadid, M.W. Mooroka, J.-E. Wahlund, L. Moore, T.E. Cravens, M.M. Hedman, N.J.T. Edberg, E. Vigren, J.H. Waite Jr., R. Perryman, W.S. Kurth, W.M. Farrell, A.I. Eriksson Ring shadowing effects on Saturn's ionosphere: Implications for ring opacity and plasma transport Geophysics Research Letters 45 DOI 10.1029/2018GL079150 (2018) [PDF]

J.P. Ahlers, J.W. Barnes, S.A. Horvath, S.A. Myers, M.M. Hedman. LASR-guided stellar photometric variability subtraction; The Linear Algorithm for Significance Reduction A&A 615:A128 (2018) [arXiv] [PDF]

E. Deau, L. Dones, M.I. Mishchenko, R.A. West, P. Helfenstein, M.M. Hedman, C.C. Porco. The opposition effect in Saturn's main rings as seen by Cassini ISS: 4. Correlations of the surge morphology with surface albedos and VIMS spectral properties. Icarus 305:324-349 (2018) [PDF]

M.M. Hedman. An Introduction to Planetary Ring Dynamics, in Planetary Ring Systems ed. M.S. Tiscareno, C.D. Murray (2018) ERRATA

M.M. Hedman, F. Postberg, D.P. Hamilton, S. Renner, H.-W. Hsu. Dusty Rings, in Planetary Ring Systems ed. M.S. Tiscareno, C.D. Murray (2018)

M.S. Tiscareno, M.M. Hedman. A revew of Morlet wavelet analysis of radial profiles of Saturn's rings Phil. Trans. A 376:20180046 (2018) [PDF]

M.M. Hedman, D. Dhingra, P.D. Nicholson, C.J. Hansen, G. Portyankina, S. Ye, Y. Dong. Spatial variations in the dust-to-gas ratio of Enceladus' plume Icarus 305:123-138 (2018) [arXiv] [PDF]

W.T. Hatchett, J.W. Barnes, J.P. Ahlers, S.M. MacKenzie, M.M. Hedman. A pilot investigation to constrain the presence of ring systems around transiting exoplanets New Astronomy 60:88-94 (2018) [PDF]

2017


R.O. Chancia, M.M. Hedman, R.G French. Weighing Uranus' Moon Cressida with the eta Ring The Astronomical Journal 154:153 (2017) [arXiv] [PDF]

R. Tajeddine, K.M. Soderlund, P.C. Thomas, P. Helfenstein, M.M. Hedman, J.A. Burns, P.M. Schenk True polar wander of Enceladus from topographic data Icarus 295:46-60 (2017) [PDF]

D. Dhingra, M.M. Hedman, R.N. Clark, P.D. Nicholson. Spatially resolved near infrared observations of Enceladus' tiger stripe eruptions from Cassini VIMS Icarus 292:1-12 (2017) [PDF]

R.G. French, C.A. McGhee-French, K. Lonergan, T. Sepersky, R.A. Jacobson, P.D. Nicholson, M.M. Hedman, E. A Marouf, J.E. Colwell. Noncircular features in Saturn's rings IV: Absolute radius scale and Saturn's pole direction Icarus 290:14-45 (2017) [PDF]

R. Tajeddine, P.D. Nicholson, M.S. Tiscareno, M.M. Hedman, J.A. Burns, M. El Moutamid. Dynamical Phenomena at the inner edge of the Keeler Gap Icarus 289:80-93 (2017) [PDF]

K.-L. Sun, M. Seiss, M.M. Hedman, F. Spahn. Dust in the arcs of Methone and Anthe. Icarus 284:206-215 (2017) [PDF]

M.M. Hedman, B.J. Carter. A curious ringlet the shares Prometheus' orbit but precesses like the F ring. Icarus 281:322-333 (2017) [arXiv] [PDF] [SOM data]

Z. Zhang, A.G. Hayes, M.A. Hanssen, P.D. Nicholson, J.N. Cuzzi, I. de Pater, D.E. Dunn. P.R. Estrada M.M. Hedman. Cassini microwave observations provide clues to the origin of Saturn's C ring Icarus 281:297-321 (2017) [PDF]


2016


R.O. Chancia, M.M. Hedman. Are there moons near the Uranian alpha and beta rings? The Astronomical Journal 152:6 (2016) [arXiv] [PDF]

R.G. Jerousek, J.E. Colwell, L.W. Esposito, P.D. Nicholson, M.M. Hedman. Small particles and self-gravity wakes in Saturn's rings from UVIS and VIMS stellar occultations. Icarus 279:36-50 (2016) [PDF]

R.G. French, P.D. Nicholson, M.M. Hedman, J.M. Hahn, C.A. McGhee-French, J.E. Colwell, E.A. Marouf, N.J. Rappaport. Deciphering the embedded wave is Saturn's Maxwell ringlet. Icarus 279:62-67 (2016) [PDF]

P.D. Nicholson, M.M. Hedman. A vertical rift in Saturn's inner C ring. Icarus 279:78-99 (2016) [PDF]

M.M. Hedman, P.D. Nicholson. The B-ring's surface mass density from hidden density waves: Less than meets the eye? Icarus 279:109-124 (2016) [arXiv] [PDF]

M. El Moutamid, P.D. Nicholson, R.G. French, M.S. Tiscareno, C.D. Murray, M.W. Evans, C. McGhee-French, M.M. Hedman, J.A. Burns. How Janus' orbit swap affects the edge of Saturn's A ring? Icarus 279:125-140 (2016) [arXiv] [PDF]

M.M. Hedman, M.R Showalter. A new pattern in Saturn's D ring created in 2011. Icarus 279:155-165 (2016) [arXiv] [PDF]

J.W. Barnes, B. Quarles, J.J. Lissauer, J. Chambers, M.M. Hedman. Obliquity Variability of a Potentially Habitable Early Venus. Astrobiology 16:487-499 (2016) [arXiv] [PDF]

D. Tamayo, S.R. Markham, M.M. Hedman, J.A. Burns, D.P. Hamilton. Radial Profiles of the Phoebe ring: A vast debris disk around Saturn Icarus 275:117-131 (2016) [arXiv] [PDF]

R.G. French, P.D. Nicholson, C.A. McGhee-French, K. Lonergan, T. Sepersky, M.M. Hedman, E.A. Marouf and J.E. Colwell. Noncircular Features in Saturn's rings III: The Cassini Division. Icarus 274:131-162 (2016) [PDF]

P.N. Stewart, P.G. Tuthill, P.D. Nicholson, M.M. Hedman High-angular-resolution stellar imaging with occultations from the Cassini spacecraft -- III. Mira MNRAS 457:1410-1418 (2016) [PDF]

P.N. Stewart, P.G. Tuthill, J.D. Monnier, M.J. Ireland, M.M. Hedman, P.D. Nicholson, S. Lacour The weather report from IRC+10216: evolving irregular clouds envelop carbon star. MNRAS 455:3102-3109 (2016) [PDF]


2015



P.N. Stewart, P.G. Tuthill, P.D. Nicholson, G.C. Sloan, M.M. Hedman. An atlas of bright star spectra in the near-infrared from Cassini-VIMS ApJS 221:30 (2015) [arXiv] [PDF]

P.A. Dalba, P.S. Muirhead, J.J. Fortney, M.M. Hedman, P.D. Nicholson, M.J. Veyette. The transit transmission spectrum of a cold gas giant planet ApJL 801:L33 (2015) [arXiv] [PDF]

M.M. Hedman, C. Stark Saturn's G and D rings provide nearly complete measured scattering phase functions of nearby debris disks ApJ 811:1 (2015) [arXiv] [PDF] [Table 1] [Table 2] [Table 3] [Table 4]

M.M. Hedman. Why are dense planetary rings only found between 8 and 20 AU? ApJL 801:L33 (2015) [arXiv] [PDF]

P.N. Stewart, P.G. Tuthill, P.D. Nicholson, M.M. Hedman, J.P. Lloyd. High angular resolution stellar imaging with occultations from the Cassini Spacecraft -II. Kronocyclic tomography MNRAS 449:1760-1766 (2015) [arXiv] [PDF]

M.M. Hedman, J.A. Burns, M.R. Showalter. Corrugations and eccentric spirals in Saturn's D ring: New insights into what happened at Saturn in 1983 Icarus 248:137-161 (2015) [arXiv] [PDF]

L. Maltagliati, B. Bezard, S. Vinatier, M.M. Hedman, E. Lellouch, P.D. Nicholson, C. Sotin, R. J. de Kok, B. Sicardy. Titan's atmosphere as observed by Cassini/VIMS solar occultations: CH4, CO, and evidence for C2H6 absorption. Icarus 248:1-24 (2015) [arXiv] [PDF]

2014



M.M. Hedman, P.D. Nicholson. More Kronoseismology with Saturn's Rings Monthly Notices of the Royal Astronomical Society 444:1369-1388 (2014) [arXiv] [PDF] [SOM]

P.D. Nicholson, R.G. French, C.A. McGhee-French, M.M. Hedman, E.A. Marouf, J.E. Colwell, K. Lonergran, T. Sepersky. Noncircular features in Saturn's rings II: The C ring Icarus 241:373-396 (2014) [PDF]

G. Filacchione, M. Ciarniello, F. Capaccioni, R.N. Clark, P.D. Nicholson, M.M. Hedman, J.N. Cuzzi, D.P. Cruikshank, C.M. Dalle Ore, R.H. Brown, P. Cerroni, N. Altobelli, L.J. Spilker. Cassini-VIMS observations of Saturn's main rings: I Spectral properties and temperature radial profiles variability with phase angle and elevation. Icarus 241:45-65 (2014) [PDF]

M.M. Hedman, P.D. Nicholson, H. Salo Exploring overstabilities in Saturn's A ring using two stellar occultations The Astronomical Journal 148:15 (2014) [arXiv] [PDF]

M.M. Hedman, J.A. Burt, J.A. Burns, M.R. Showalter Non-circular features in Saturn's D ring: D68 Icarus 233:147-162 (2014) [arXiv] [PDF] Data File 1 Data File 2

D. Tamayo, M.M. Hedman, J.A. Burns First observations of the Phoebe ring in optical light Icarus 233:1-8 (2014) [arXiv] [PDF]

P.D. Nicholson, R.G French, M.M. Hedman, E.A. Marouf, J.E. Colwell. Noncircular features in Saturn's rings I: The edge of the B ring Icarus 227:152-175 (2014) [PDF]

2013



R.A. Harbison, P.D. Nicholson, M.M. Hedman. The smallest particles in Saturn's A and C rings Icarus 226:1225-1240 (2013) [PDF]

M.M. Hedman. Efficiently extracting energy from cosmological neutrinos. Journal of Cosmology and Astroparticle Physics 09:029 (2013) [PDF]

J.D. Gougen, B.J. Buratti, R.H. Brown, R.N. Clark, P.D. Nicholson, M.M. Hedman, R.R. Howell, C. Sotin, D.P. Cruikshank, K.H. Baines, K.J. Lawrence, J.R. Spencer, D.G. Blackburn. The temperature and width of an active fissure on Enceladus measured with Cassini VIMS during the 14 April 2012 South Pole flyover. Icarus 226:1128-1137 (2013) [PDF]

P.C. Thomas, J.A. Burns, M.M. Hedman, P. Helfenstein, S. Morrison, M.S. Tiscareno, J. Veverka. The inner small satellites of Saturn: A variety of worlds Icarus 226:999-1019 (2013) [PDF]

M.M. Hedman, C.M. Gosmeyer, P.D. Nicholson, C. Sotin, R.H. Brown. R.N. Clark, K.H. Baines, B.J. Buratti, M.R. Showalter. An observed correlation between plume activity and tidal stresses on Enceladus Nature 500:182-184 (2013) [PDF] [SOM]

P.N. Stewart, P.G. Tuthill, M.M. Hedman, P.D. Nicholson, J.P. Lloyd. High-angular-resolution stellar imaging with occultations from the Cassini spacecraft - I. Observational technique MNRAS 433:2286-2293 (2013) [arXiv] [PDF]

M.M. Hedman and P.D. Nicholson. Kronoseismology: Using density waves in Saturn's C ring to probe the planet's interior. The Astronomical Journal 146:12 (2013) [arXiv] [PDF]

M.S. Tiscareno, C.J. Mitchell, C.D. Murray, D. Di Nino, M.M. Hedman, J. Schmidt, J.A. Burns, J.N. Cuzzi, C.C. Porco, K. Beurle. Observations of ejecta clouds produced by impacts onto Saturn's rings Science 340:460-464 (2013) [PDF] [SOM]

M.M. Hedman, Planetary Ring Dynamics, in Celestial Mechanics , ed. Alexandra Celletti, in Encyclopedia of Life Support Systems(EOLSS), Developed under the Auspices of the UNESCO, Eolss Publishers, Oxford ,UK, http://www.eolss.net (2013) [PDF]

M.S. Tiscareno, M.M. Hedman, J.A. Burns, J. Castillo-Rogez. Compositions and Origins of Outer Planet Systems: Insights from the Roche Critical Density Astrophysical Journal Letters 765:L28 (2013) [arXiv] [PDF]

M.S. Tiscareno, M.M. Hedman, J.A. Burns, J.W. Weiss, C.C. Porco. Probing the inner boundaries of Saturn's A ring with the Iapetus -1:0 nodal bending wave Icarus 224:201-208 (2013) [arXiv] [PDF]

G. Filacchione, F. Capaccioni, R.N. Clark, P.D. Nicholson, D.P. Cruikshank, J.N. Cuzzi, J.I. Lunine, R.H. Brown, P. Cerroni, F. Tosi, M. Ciarniello B. J. Buratti, M.M. Hedman, E. Flamini. The radial distribution of water ice and chromophores across Saturn's system. The Astrophysical Journal 766:76-81 (2013) [arXiv] [PDF]

M.M. Hedman, J.A. Burns, D.P. Hamilton, M.R. Showalter. Of horseshoes and heliotropes: Dynamics of dust in the Encke Gap Icarus 223:252-276 (2013) [arXiv] [PDF]

M.M. Hedman, P.D. Nicholson, J.N. Cuzzi, R.N. Clark, G. Filacchione, F. Capaccioni, M. Ciarniello. Connections between spectra and structure in Saturn's main rings based on Cassini VIMS data Icarus 223:105-130 (2013) [arXiv] [PDF]

2012


G. Filacchione, F. Capaccioni, M. Ciarnello, R.N. Clark, J.N. Cuzzi, P.D. Nicholson, D. Cruikshank, M.M. Hedman, B.J. Buratti, J.I. Lunine, L.A. Soderblom, F. Tosi, P. Cerroni, R.H. Brown, T.B. McCord, R. Jaumann, K. Stephan, K.H. Baines, E. Flamini Saturn's icy satellites and rings investigated by Cassini-VIMS: III - Radial compositional variability Icarus 220:1064-1096 (2012) [arXiv] [PDF]

R.S. French, M.R. Showalter, R. Sfair, G.A. Arguelles, M. Pajuelo, P. Becerra, M.M. Hedman, P.D. Nicholson. The brightening os Saturn's F ring Icarus 219:181-193 (2012) [PDF]

M.M. Hedman, J.A. Burns, D.P. Hamilton, M.R. Showalter. The three-dimensional structure of Saturn's E ring Icarus 217:322-328 (2012) [arXiv] [PDF]

2011


M.M. Hedman, P.D. Nicholson, M.R. Showalter, R.H. Brown, B.J. Buratti, R.N. Clark, K. Baines, C. Sotin. The Christiansen Effect in Saturn's narrow dusty rings and the spectral identification of clumps in the F ring. Dynamics of dust from Saturn's irregular satellites. Icarus 215:695-711 (2011) [arXiv] [PDF]

S. Vahidinia, J.N. Cuzzi, M.M. Hedman, B. Draine, R.N. Clark, T. Roush, G. Filacchione, P.D. Nicholson, R.H. Brown, B.J. Buratti, C. Sotin. Saturn's F ring grains: Aggregates made of crystalline water ice. Icarus 215:682-694 (2011) [PDF]

D. Tamayo, J.A. Burns, D.P. Hamilton, M.M. Hedman Finding the trigger to Iapetus' odd global albedo pattern: Dynamics of dust from Saturn's irregular satellites. Icarus 215:260-278 (2011) [arXiv] [PDF]

M.M. Hedman, J.A. Burns, M.W. Evans, M.S. Tiscareno, C.C. Porco. Saturn's curiously corrugated C ring. Science 332:708-711 (2011) [PDF]

M.R. Showalter, M.M. Hedman, J.A. Burns. The Impact of comet Shoemaker-Levy 9 sends ripples through the rings of Jupiter. Science 332:711-713 (2011) [PDF]

2010


M.M. Hedman, J.A. Burt, J.A. Burns, M.S. Tiscareno. The shape and dynamics of a heliotropic dusty ringlet in the Cassini Division. Icarus 210:284-297 (2010) [arXiv] [PDF]

R. West, B. Knowles, E. Birath, S. Charnoz, D. di Nino M.M. Hedman, P. Helfenstein, A. McEwen, J. Perry, C. Porco, J. Salmon, H. Throop, D. Wilson. In-flight calibration of the Cassini imaging science sub-system cameras. Planetary and Space Science 58:1475-1488 (2010) [PDF]

M.S. Tiscareno, J.A. Burns, M. Sremcevic, K. Beurle, M.M. Hedman, N.J. Cooper, A.J. Milano, M.W. Evans, C.C. Porco, J.N. Spitale, J.W. Weiss. Physical Characteristics and Non-Keplerian Orbital Motion of "Propeller" Moons Embedded in Saturn's Rings. The Astrophysical Journal 718:L92-L96 (2010) [PDF]

M.S. Tiscareno, J.A. Burns, J.N. Cuzzi, M.M. Hedman. Cassini imaging search rules out rings around Rhea. Geophysical Research Letters 37:L14205 (2010) [PDF]

M.M. Hedman, N.J. Cooper, C.D. Murray, K. Beurle, M.W. Evans, M.S. Tiscareno, J.A. Burns. Aegaeon (Saturn LIII), a G-ring object. Icarus 207 (2010) 433-447 [arXiv] [PDF]

P.D. Nicholson and M.M.Hedman. Self-gravity wake parameters in Saturn's A and B rings. Icarus 206:410-423 (2010) [PDF]

J.N. Cuzzi, J.A. Burns, S. Charnoz, R.N. Clark, J.E. Colwell, L. Dones, L.W. Esposito, G. Filacchione, R.G. French, M.M. Hedman, S. Kempf, E.A.Marouf, C.D. Murray, P.D. Nicholson, C.C. Porco, J. Schmidt, M.R. Showalter, L.J. Spiker, J.N. Spitale, R. Srama, M. Sremcevic, M.S. Tiscareno, J. Weiss. An Evolving View of Saturn's Dynamic Rings. Science 327:1470- (2010) [PDF]

M.S. Tiscareno, R.P. Perrine, D.C. Richardson, M.M. Hedman, J.W. Weiss, C.C. Porco, J.A. Burns. An Analytic Parameterization of Self-Gravity Wakes in Saturn's Rings, with Application to Occultations and Propellers. The Astronomical Journal 139:492-503 (2010) [PDF]

E. D'Aversa, G. Bellucci, P.D. Nicholson, M.M. Hedman, R.H. Brown, M.R. Showalter, F. Altieri, F.G. Carrozzo, G. FIlacchione, F. Tosi. The spectrum of Saturn ring spoke from Cassini/VIMS Geophysical Research Letters 37:L01203 (2010) [PDF]

M.M. Hedman, P.D. Nicholson, K.H. Baines, B.J. Buratti, C. Sotin, R.N. Clark, R.H. Brown, R.G. French, E.A. Marouf. The Architecture of the Cassini Division. The Astronomical Journal 139:228-251 (2010) [PDF]

M.M. Hedman. Constraints on clade ages from fossil outgroups. Paleobiology 36:16-31 (2010) [PDF]

2009


S. Charnoz, L. Dones, L.W. Esposito, P.R. Estrada, M.M. Hedman. Origin and Evolution of Saturn's Ring System, in Saturn from Cassini-Huygens ed. M.K. Dougherty, L.W. Esposito, S.M. Krimigis (2009)

M. Horanyi, J.A. Burns, M.M. Hedman, G.H. Jones, S. Kempf Diffuse Rings, in Saturn from Cassini-Huygens ed. M.K. Dougherty, L.W. Esposito, S.M. Krimigis (2009)

M.M. Hedman, J.A. Burns, M.S. Tiscareno, C.C. Porco. Organizing some very tenuous things: Resonant structures in Saturn's faint rings. Icarus 202:260-279 (2009) [PDF]

A. Bellucci, B. Sicardy, P. Drossart, P. Rannou, P.D. Nicholson, M.M. Hedman, K.H. Baines, B.J. Buratti. Titan solar occultation observed by Cassini/VIMS: Gas absorption and constraints on aerosol composition. Icarus 201:198-216 (2009) [PDF]

M.M. Hedman, P.D. Nicholson, M.R. Showalter, R.H. Brown, B.J. Buratti, R.N. Clark. Spectral Observations of the Enceladus Plume with Cassini-VIMS. The Astrophysical Journal 693:1749-1762 (2009) [PDF] [Data]

M.M. Hedman, C.D. Murray, N.J. Cooper, M.S. Tiscareno, K. Beurle, M.W. Evans, J.A. Burns. Three tenuous rings/arcs for three tiny moons. Icarus 199:378-386 (2009) [PDF]

2008


C. Bischoff, L. Hyatt, J.J. McMahon, G.W. Nixon, D. Samtleben, K.M. Smith, K. Vanderlinde, D. Barkats, P. Farese, T. Gaier, J.O. Gundersen, M.M. Hedman, S.T. Staggs, B. Winstein. New Measurements of Fine-Scale CMB Polarization Power Spectra from CAPMAP at Both 40 and 90 GHz. The Astrophysical Journal 684:771-789 (2008) [PDF]

K.M. Pitman, B.J. Buratti, J.A. Mosher, J.M. Bauer, T.W. Momary, R.H. Brown, P.D. Nicholson, M.M. Hedman. First High Solar Phase Angle Observations of Rea Using Cassini VIMS: Upper Limits on Water Vapor and Geologic Activity. The Astrophysical Journal 680:L65-L68 (2008) [PDF]

L.W. Esposito, B.K. Meinke, J.E. Colwell, P.D. Nicholson, M.M. Hedman. Moonlets and clumps in Saturn's F ring. Icarus 194:278-289 (2008) [PDF]

M.S. Tiscareno, J.A. Burns, M.M. Hedman, C.C. Porco. The Population of Propellers in Saturn's A Ring. The Astronomical Journal 135:1083-1091 (2008) [PDF]

A. Coradini, F. Tosi, A.I. Gavrishin, F. Capaccioni, P. Cerroni, G. Filacchione, A. Adriani, R.H. Brown, G. Bellucci, V. Formisano, E. D'Aversa, J.I. Lunine, K.H. Baines, J.-P. Bibring, B.J. Buratti, R.N. Clark, D.P. Cruikshank, M. Combes, P. Drossart, R. Jaumann, Y. Langevin, D.L. Matson, T.B. McCord, V. Mennella, R.M. Nelson, P.D. Nicholson, B. Sicardy, C. Sotin, M.M. Hedman, G.B. Hansen, C.A. Hibbits, M. Showalter, C. Griffith, G. Strazzulla. Identification of spectral units on Phoebe. Icarus 193:233-251 (2008) [PDF]

P.D. Nicholson, M.M. Hedman, R.N. Clark, M.R. Showalter, D.P. Cruikshank, J.N, Cuzzi, G. Filacchione, F. Capaccioni, P. Cerroni, G.B. Hansen, B. Sicardy, P. Drossart, R.H. Brown, B.J. Buratti, K.H. Baines, A. Coradini. A close look at Saturn's ring with Cassini VIMS. Icarus 193:182-212 (2008) [PDF]

2007


M.M. Hedman. The Age of Everything University of Chicago Press (2007)

M.M. Hedman, J.A. Burns, M.S. Tscareno, C.C. Porco, G.H. Jones, E. Roussos, N. Krupp, C. Paranicas, S. Kempf. The Source of Saturn's G Ring. Science 317:653-656 (2007) [PDF] [SOM]

M.S. Tiscareno, J.A. Burns, P.D. Nicholson, M.M. Hedman, C.C. Porco. Cassini imaging of Saturn's rings. II. A wavelet technique for analysis of density waves and other radial structure in the rings. Icarus 189:14:34 (2007) [PDF]

M.M. Hedman, P.D. Nicholson, H. Salo, B.D. Wallis, B.J. Buratti, Kevin H. Baines, R.H. Brown and R.N. Clark. Self-gravity Wake Structures in Saturn's A Ring Revealed by Cassini VIMS. The Astronomical Journal 133:2624-2629 (2007) [PDF]

M.M. Hedman, J.A. Burns, M.R. Showalter, C.C. Porco, P.D. Nicholson, A.S. Bosh, M.S. Tiscareno, R.H. Brown, B.J. Buratti, K.H. Baines, R.N. Clark. Saturn's dynamic D ring. Icarus 188:89-107 (2007) [PDF]

2006


M.S. Tiscareno, P.D. Nicholson, J.A. Burns, M.M. Hedman, C.C. Porco. Unraveling Temporal Variability in Saturn's Spiral Density Waves: Results and Predictions. The Astrophysical Journal 651:L65-L68 (2006) [PDF]

M.S. Tiscareno, J.A. Burns, M.M. Hedman, C.C. Porco, J.W. Weiss, L. Dones, D.C. Richardson, C.D.Murray. 100-metre-diameter moonlets in Saturn's A ring from observations of 'propeller' structures. Nature 440:648-650 (2006) [PDF]

2005


D. Barkats, C. Bischoff, P. Farese, T.Gaier, J.O. Gundersen, M.M. Hedman, L. Hyatt, J.J. Mcmahon, D. Samtleben, S.T. Staggs, E. Stefanescu, K. Vanderlinde, B. Winstein. Cosmic Microwave Background Polarimetry Using Correlation Receivers with the PIQUE and CAPMAP Experiments. The Astrophysical Journal Supplement Series 159:1-26 (2005) [PDF]

D. Barkats, C. Bischoff, P.Farese, L. Fitzpatrick, T.Gaier, J.O. Gundersen, M.M. Hedman,L. Hyatt, J.J. McMahon, D.Samtleben, S.T. Staggs, K. Vanderlinde. B. Winstein. First Measurements of the Cosmic Microwave Background Radiation at Small Angular Scales from CAPMAP. The Astrophysical Journal 619:L127-L130 (2005) [PDF]

2004



2003


W. Hu, M.M. Hedman, M. Zaldarriaga. Benchmark parameters for CMB polarization experiments. Physical Review D 67:043004 (2003) [PDF]

A. de Oliviera-Costa, M.Tegmark, M. Zaldarriaga, D. Barkats, J.O. Gundersen, M.M. Hedman, S.T.Staggs, B. Winstein. First attempt at measuring the CMB cross-polarization. Physical Review D 67:023003 (2003) [PDF]

2002


M.M. Hedman, D. Barkats, J.O. Gundersen, J.J.McMahon, S.T. Staggs, B. Winstein. New Limits on the Polarized Anisotropy of the Cosmic Microwave Background at Subdegree Angular Scales. The Astrophysical Journal 573:L73-L76 (2002) [PDF]

M.M. Hedman. THe Princeton IQU Experiment and Constraints on the Polarization of the Cosmic Microwave Background at 90 GHz. Ph.D. Thesis (2002).

S.T.Staggs, D. Barkats, J.O. Gundersen, M.M. Hedman, C.P. Herzog, J.J. McMahon, B. Winstein. Calibrating CMB Polarization Telescopes, Astrophysical Polarized Backgrounds, AIP Conference Proceedings 609:183-186 (2002) [PDF]

2001


M.M. Hedman, D. Barkats, J.O. Gundersen, S.T. Stagga, B. Winstein. A Limit on the Polarized Anisotropy of the Cosmic Microwave Background at Subdegree Angular Scales. The Astrophysical Journal 548:L111-L114 (2001) [PDF]