Works by Lillis, R. J.

Results: 48

Weak magnetism of Martian impact basins may reflect cooling in a reversing dynamo.

Published in:

Nature Communications, 2024, v. 15, n. 1, p. 1, doi. 10.1038/s41467-024-51092-4

By:

Steele, S. C.;
Fu, R. R.;
Mittelholz, A.;
Ermakov, A. I.;
Citron, R. I.;
Lillis, R. J.

Publication type:

Article

MAVEN SEP Observations of Scorpius X‐1 X‐Rays at Mars: A Midatmosphere Occultation Analysis Technique.

Published in:

Geophysical Research Letters, 2020, v. 47, n. 21, p. 1, doi. 10.1029/2020GL088927

By:

Rahmati, A.;
Larson, D. E.;
Cravens, T. E.;
Lillis, R. J.;
Lee, C. O.;
Dunn, P. A.

Publication type:

Article

Variations in Nightside Magnetic Field Topology at Mars.

Published in:

Geophysical Research Letters, 2020, v. 47, n. 19, p. 1, doi. 10.1029/2020GL088921

By:

Brain, D. A.;
Weber, T.;
Xu, S.;
Mitchell, D. L.;
Lillis, R. J.;
Halekas, J. S.;
Espley, J.;
Jakosky, B. M.

Publication type:

Article

Detectability of Remanent Magnetism in the Crust of Venus.

Published in:

Geophysical Research Letters, 2019, v. 46, n. 11, p. 5768, doi. 10.1029/2019GL082725

By:

O'Rourke, J. G.;
Buz, J.;
Fu, R. R.;
Lillis, R. J.

Publication type:

Article

Ion Densities in the Nightside Ionosphere of Mars: Effects of Electron Impact Ionization.

Published in:

Geophysical Research Letters, 2017, v. 44, n. 22, p. 11,248, doi. 10.1002/2017GL075431

By:

Girazian, Z.;
Mahaffy, P.;
Lillis, R. J.;
Benna, M.;
Elrod, M.;
Fowler, C. M.;
Mitchell, D. L.

Publication type:

Article

MAVEN observations of energy-time dispersed electron signatures in Martian crustal magnetic fields.

Published in:

Geophysical Research Letters, 2016, v. 43, n. 3, p. 939, doi. 10.1002/2015GL067040

By:

Harada, Y.;
Mitchell, D. L.;
Halekas, J. S.;
McFadden, J. P.;
Mazelle, C.;
Connerney, J. E. P.;
Espley, J.;
Brain, D. A.;
Larson, D. E.;
Lillis, R. J.;
Hara, T.;
Livi, R.;
DiBraccio, G. A.;
Ruhunusiri, S.;
Jakosky, B. M.

Publication type:

Article

The spatial distribution of planetary ion fluxes near Mars observed by MAVEN.

Published in:

Geophysical Research Letters, 2015, v. 42, n. 21, p. 9142, doi. 10.1002/2015GL065293

By:

Brain, D. A.;
McFadden, J. P.;
Halekas, J. S.;
Connerney, J. E. P.;
Bougher, S. W.;
Curry, S.;
Dong, C. F.;
Dong, Y.;
Eparvier, F.;
Fang, X.;
Fortier, K.;
Hara, T.;
Harada, Y.;
Jakosky, B. M.;
Lillis, R. J.;
Livi, R.;
Luhmann, J. G.;
Ma, Y.;
Modolo, R.;
Seki, K.

Publication type:

Article

MAVEN observations of solar wind hydrogen deposition in the atmosphere of Mars.

Published in:

Geophysical Research Letters, 2015, v. 42, n. 21, p. 8901, doi. 10.1002/2015GL064693

By:

Halekas, J. S.;
Lillis, R. J.;
Mitchell, D. L.;
Cravens, T. E.;
Mazelle, C.;
Connerney, J. E. P.;
Espley, J. R.;
Mahaffy, P. R.;
Benna, M.;
Jakosky, B. M.;
Luhmann, J. G.;
McFadden, J. P.;
Larson, D. E.;
Harada, Y.;
Ruhunusiri, S.

Publication type:

Article

Altitude dependence of nightside Martian suprathermal electron depletions as revealed by MAVEN observations.

Published in:

Geophysical Research Letters, 2015, v. 42, n. 21, p. 8877, doi. 10.1002/2015GL065257

By:

Steckiewicz, M.;
Mazelle, C.;
Garnier, P.;
André, N.;
Penou, E.;
Beth, A.;
Sauvaud, J. -A.;
Toublanc, D.;
Mitchell, D. L.;
McFadden, J. P.;
Luhmann, J. G.;
Lillis, R. J.;
Connerney, J. E. P.;
Espley, J. R.;
Andersson, L.;
Halekas, J. S.;
Larson, D. E.;
Jakosky, B. M.

Publication type:

Article

MAVEN insights into oxygen pickup ions at Mars.

Published in:

Geophysical Research Letters, 2015, v. 42, n. 21, p. 8870, doi. 10.1002/2015GL065262

By:

Rahmati, A.;
Larson, D. E.;
Cravens, T. E.;
Lillis, R. J.;
Dunn, P. A.;
Halekas, J. S.;
Connerney, J. E.;
Eparvier, F. G.;
Thiemann, E. M. B.;
Jakosky, B. M.

Publication type:

Article

Pickup ion measurements by MAVEN: A diagnostic of photochemical oxygen escape from Mars.

Published in:

Geophysical Research Letters, 2014, v. 41, n. 14, p. 4812, doi. 10.1002/2014GL060289

By:

Rahmati, A.;
Cravens, T. E.;
Nagy, A. F.;
Fox, J. L.;
Bougher, S. W.;
Lillis, R. J.;
Ledvina, S. A.;
Larson, D. E.;
Dunn, P.;
Croxell, J. A.

Publication type:

Article

Rapid decrease in Martian crustal magnetization in the Noachian era: Implications for the dynamo and climate of early Mars.

Published in:

Geophysical Research Letters, 2008, v. 35, n. 14, p. n/a, doi. 10.1029/2008GL034338

By:

Lillis, R. J.;
Frey, H. V.;
Manga, M.

Publication type:

Article

Simulating Impacts of Electron Precipitation on Mars' Nightside Ionosphere With an Empirical Model.

Published in:

Journal of Geophysical Research. Planets, 2025, v. 130, n. 4, p. 1, doi. 10.1029/2025JE008953

By:

Marquette, M.;
Lillis, R. J.;
Pawlowski, D. J.;
Chaufray, J.‐Y.;
Ma, Y. J.;
González‐Galindo, F.;
Mitchell, D. L.;
Halekas, J. S.;
Benna, M.;
Elrod, M. K.;
Espley, J. R.;
Gruesbeck, J. R.;
Curry, S. M.

Publication type:

Article

The Morphology of the Topside Martian Ionosphere: Implications on Bulk Ion Flow.

Published in:

Journal of Geophysical Research. Planets, 2019, v. 124, n. 3, p. 734, doi. 10.1029/2018JE005895

By:

Wu, X.‐S.;
Cui, J.;
Xu, S. S.;
Lillis, R. J.;
Yelle, R. V.;
Edberg, N. J. T.;
Vigren, E.;
Rong, Z.‐J.;
Fan, K.;
Guo, J.‐P.;
Cao, Y.‐T.;
Jiang, F.‐Y.;
Wei, Y.;
Mitchell, D. L.

Publication type:

Article

Seasonal Variability of Neutral Escape from Mars as Derived From MAVEN Pickup Ion Observations.

Published in:

Journal of Geophysical Research. Planets, 2018, v. 123, n. 5, p. 1192, doi. 10.1029/2018JE005560

By:

Rahmati, A.;
Larson, D. E.;
Cravens, T. E.;
Lillis, R. J.;
Halekas, J. S.;
McFadden, J. P.;
Mitchell, D. L.;
Thiemann, E. M. B.;
Connerney, J. E. P.;
Dunn, P. A.;
Lee, C. O.;
Eparvier, F. G.;
DiBraccio, G. A.;
Espley, J. R.;
Luhmann, J. G.;
Mazelle, C.;
Jakosky, B. M.

Publication type:

Article

Global-scale external magnetic fields at Mars measured at satellite altitude.

Published in:

Journal of Geophysical Research. Planets, 2017, v. 122, n. 6, p. 1243, doi. 10.1002/2017JE005308

By:

Mittelholz, A.;
Johnson, C. L.;
Lillis, R. J.

Publication type:

Article

How strong are lunar crustal magnetic fields at the surface?: Considerations from a reexamination of the electron reflectometry technique.

Published in:

Journal of Geophysical Research. Planets, 2010, v. 115, n. E3, p. n/a, doi. 10.1029/2009JE003516

By:

Halekas, J. S.;
Lillis, R. J.;
Lin, R. P.;
Manga, M.;
Purucker, M. E.;
Carley, R. A.

Publication type:

Article

Giant impacts on early Mars and the cessation of the Martian dynamo.

Published in:

Journal of Geophysical Research. Planets, 2009, v. 114, n. E4, p. n/a, doi. 10.1029/2008JE003287

By:

Roberts, J. H.;
Lillis, R. J.;
Manga, M.

Publication type:

Article

A global map of Mars' crustal magnetic field based on electron reflectometry.

Published in:

Journal of Geophysical Research. Planets, 2007, v. 112, n. E1, p. n/a, doi. 10.1029/2005JE002564

By:

Mitchell, D. L.;
Lillis, R. J.;
Lin, R. P.;
Connerney, J. E. P.;
Acuña, M. H.

Publication type:

Article

TWO MARS-YEARS OF ATMOSPHERIC NEUTRAL ESCAPE DATA FROM THE MAVEN MISSION.

Published in:

LPI Contribution, 2019, p. 1

By:

Rahmati, A.;
Larson, D. E.;
Cravens, T. E.;
Lillis, R. J.;
Halekas, J. S.;
McFadden, J. P.;
Mitchell, D. L.;
Thiemann, E. M. B.;
Connerney, J. E. P.;
Dunn, P. A.;
Lee, C. O.;
Eparvier, F. G.;
DiBraccio, G. A.;
Espley, J. R.;
Luhmann, J. G.;
Mazelle, C.;
Jakosky, B. M.

Publication type:

Article

PHOTOCHEMICAL ESCAPE FROM MARS AS A CLIMATE DRIVER: HOW IMPORTANT?

Published in:

LPI Contribution, 2019, p. 1

By:

Lillis, R. J.;
Lo, D. Y.;
Rahmati, A.;
Deighan, J. I.;
Fox, J. L.;
Yelle, R.;
Lee, Y.;
Leblanc, F.;
Chaufray, J.-Y.;
Cravens, T.;
Gacesa, M.;
Chaffin, M.;
Jakosky, B. M.

Publication type:

Article

SPACE WEATHER AT MARS: 4.5 YEARS OF MAVEN OBSERVATIONS.

Published in:

LPI Contribution, 2019, p. 1

By:

Lee, C. O.;
GLuhmann, J.;
Jakosky, B. M.;
Brain, D. A.;
Halekas, J. S.;
Lillis, R. J.;
Curry, S. M.;
Thiemann, E. M. B.;
Gruesbeck, J.

Publication type:

Article

The Evolution of the Martian Crustal Magnetic Field from MGS to MAVEN and In Sight missions.

Published in:

LPI Contribution, 2019, p. 1

By:

Langlais, B.;
Thébault, E.;
Purucker, M. E.;
Lillis, R. J.;
Bouley, S.;
Johnson, C. L.;
Mittelholz, A.;
Russell, C. T.;
Joy, S. P.;
Yu, Y.;
Smrekar, S. E.;
Banerdt, W. B.

Publication type:

Article

ENERGY INPUT OF SOLAR ENERGETIC PARTICLES AT MARS.

Published in:

LPI Contribution, 2019, p. 1

By:

Jolitz, R. D.;
Brain, D. A.;
Lee, C. O.;
Lillis, R. J.;
Larson, D. L.;
Halekas, J. S.;
Jakosky, B. M.

Publication type:

Article

INSIGHT AND MAVEN: A COMPARISON BETWEEN MAGNETIC FIELDS MEASURED FROM THE SURFACE OF MARS AND FROM ORBIT.

Published in:

LPI Contribution, 2019, p. 1

By:

Fillingim, M. O.;
Russell, C. T.;
Joy, S.;
Chi, P. J.;
Yu, Y.;
Johnson, C. L.;
Mittelholz, A.;
Langlais, B.;
Lillis, R. J.;
Luhmann, J. G.;
Espley, J.;
Halekas, J. S.;
Banerdt, B.;
Jakosky, B.

Publication type:

Article

DETERMINING THE COSMIC RAY SPECTRUM AT MARS WITH MAVEN'S SOLAR ENERGETIC PARTICLE DETECTOR.

Published in:

LPI Contribution, 2019, p. 1

By:

Dunn, P. A.;
Lillis, R. J.;
Lee, C. O.;
Ehresmann, B.;
Rahmati, A.;
Larson, D. E.

Publication type:

Article

VARIABILITY OF THE MARTIAN HOT OXYGEN CORONA OBSERVED BY MAVEN/IUVS AND IMPLICATIONS FOR ATMOSPHERIC EVOLUTION.

Published in:

LPI Contribution, 2019, p. 1

By:

Deighan, J.;
Jain, S. K.;
Chaffin, M. S.;
Chaufray, J-Y.;
Schneider, N. M.;
Eparvier, F. G.;
Thiemann, E.;
Clarke, J. T.;
Mayyasi, M.;
Lillis, R. J.

Publication type:

Article

Model calculations of electron precipitation induced ionization patches on the nightside of Mars.

Published in:

Geophysical Research Letters, 2007, v. 34, n. 12, p. n/a, doi. 10.1029/2007GL029986

By:

Fillingim, M. O.;
Peticolas, L. M.;
Lillis, R. J.;
Brain, D. A.;
Halekas, J. S.;
Mitchell, D. L.;
Lin, R. P.;
Lummerzheim, D.;
Bougher, S. W.;
Kirchner, D. L.

Publication type:

Article

Current sheets at low altitudes in the Martian magnetotail.

Published in:

Geophysical Research Letters, 2006, v. 33, n. 13, p. n/a, doi. 10.1029/2006GL026229

By:

Halekas, J. S.;
Brain, D. A.;
Lillis, R. J.;
Fillingim, M. O.;
Mitchell, D. L.;
Lin, R. P.

Publication type:

Article

Probing upper thermospheric neutral densities at Mars using electron reflectometry.

Published in:

Geophysical Research Letters, 2005, v. 32, n. 23, p. n/a, doi. 10.1029/2005GL024337

By:

Lillis, R. J.;
Engel, J. H.;
Mitchell, D. L.;
Brain, D. A.;
Lin, R. P.;
Bougher, S.W.;
Acuña, M. H.

Publication type:

Article

Mapping crustal magnetic fields at Mars using electron reflectometry.

Published in:

Geophysical Research Letters, 2004, v. 31, n. 15, p. n/a, doi. 10.1029/2004GL020189

By:

Lillis, R. J.;
Mitchell, D. L.;
Lin, R. P.;
Connerney, J. E. P.;
Acuña, M. H.

Publication type:

Article

Interplanetary Hydrogen Observations of the Emirates Ultraviolet Spectrometer Onboard the Emirates Mars Mission.

Published in:

Journal of Geophysical Research. Space Physics, 2025, v. 130, n. 6, p. 1, doi. 10.1029/2025JA033903

By:

Susarla, R.;
Deighan, J.;
Chaffin, M. S.;
Quemerais, E.;
Jain, S.;
Lillis, R. J.;
Holsclaw, G.;
Chirakkil, K.;
Brain, D.;
Thiemann, Ed.;
Eparvier, F.;
Lootah, F.;
Gacesa, M.;
Fillingim, M. O.;
Evans, J. S.;
AlMazmi, H.;
AlMatroushi, H.;
El‐Maarry, M. R.

Publication type:

Article

Variability of Atomic Hydrogen Brightness in the Martian Exosphere: Insights From the Emirates Ultraviolet Spectrometer on Board Emirates Mars Mission.

Published in:

Journal of Geophysical Research. Space Physics, 2024, v. 129, n. 6, p. 1, doi. 10.1029/2024JA032525

By:

Susarla, R.;
Deighan, J.;
Chaffin, M. S.;
Jain, S.;
Lillis, R. J.;
Chirakkil, K.;
Brain, D.;
Thiemann, E.;
Eparvier, F.;
Lootah, F.;
Holsclaw, G.;
Gacesa, M.;
Fillingim, M. O.;
El‐Kork, N.;
England, S.;
Evans, J. S.;
AlMazmi, H.;
AlMatroushi, H.

Publication type:

Article

The Day the Solar Wind Disappeared at Mars.

Published in:

Journal of Geophysical Research. Space Physics, 2023, v. 128, n. 12, p. 1, doi. 10.1029/2023JA031935

By:

Halekas, J. S.;
Shaver, S.;
Azari, A. R.;
Fowler, C. M.;
Ma, Y.;
Xu, S.;
Andersson, L.;
Bertucci, C.;
Curry, S. M.;
Dong, C.;
Dong, Y.;
Fang, X.;
Garnier, P.;
Hanley, K. G.;
Hara, T.;
Howard, S. K.;
Hughes, A.;
Lillis, R. J.;
Lee, C. O.;
Luhmann, J. G.

Publication type:

Article

Energy Input of EUV, Solar Wind, and SEPs at Mars: MAVEN Observations During Solar Minimum.

Published in:

Journal of Geophysical Research. Space Physics, 2023, v. 128, n. 2, p. 1, doi. 10.1029/2022JA030884

By:

Jolitz, R. D.;
Rahmati, A.;
Brain, D. A.;
Lee, C. O.;
Lillis, R. J.;
Thiemann, E.;
Eparvier, F.;
Mitchell, D.;
Halekas, J.;
Larson, D.;
Curry, S. M.;
Jakosky, B. M.

Publication type:

Article

MAVEN Observations of Low Frequency Steepened Magnetosonic Waves and Associated Heating of the Martian Nightside Ionosphere.

Published in:

Journal of Geophysical Research. Space Physics, 2021, v. 126, n. 10, p. 1, doi. 10.1029/2021JA029615

By:

Fowler, C. M.;
Hanley, K. G.;
McFadden, J. P.;
Chaston, C. C.;
Bonnell, J. W.;
Halekas, J. S.;
Espley, J. R.;
DiBraccio, G. A.;
Schwartz, S. J.;
Mazelle, C.;
Mitchell, D. L.;
Xu, S.;
Lillis, R. J.

Publication type:

Article

Test Particle Model Predictions of SEP Electron Transport and Precipitation at Mars.

Published in:

Journal of Geophysical Research. Space Physics, 2021, v. 126, n. 8, p. 1, doi. 10.1029/2021JA029132

By:

Jolitz, R. D.;
Dong, C. F.;
Rahmati, A.;
Brain, D. A.;
Lee, C. O.;
Lillis, R. J.;
Curry, S. M.;
Jakosky, B. M.

Publication type:

Article

Solar Extreme Ultraviolet Irradiance Uncertainties for Planetary Studies.

Published in:

Journal of Geophysical Research. Space Physics, 2021, v. 126, n. 1, p. 1, doi. 10.1029/2020JA028184

By:

Thiemann, E. M. B.;
Eparvier, F. G.;
Knoer, V.;
Al Muharrami, Abdulla;
Lillis, R. J.

Publication type:

Article

The Martian Photoelectron Boundary as Seen by MAVEN.

Published in:

Journal of Geophysical Research. Space Physics, 2017, v. 122, n. 10, p. 10,472, doi. 10.1002/2017JA024497

By:

Garnier, P.;
Steckiewicz, M.;
Mazelle, C.;
Xu, S.;
Mitchell, D.;
Holmberg, M. K. G.;
Halekas, J. S.;
Andersson, L.;
Brain, D. A.;
Connerney, J. E. P.;
Espley, J. R.;
Lillis, R. J.;
Luhmann, J. G.;
Sauvaud, J.-A.;
Jakosky, B. M.

Publication type:

Article

A Monte Carlo model of crustal field influences on solar energetic particle precipitation into the Martian atmosphere.

Published in:

Journal of Geophysical Research. Space Physics, 2017, v. 122, n. 5, p. 5653, doi. 10.1002/2016JA023781

By:

Jolitz, R. D.;
Dong, C. F.;
Lee, C. O.;
Lillis, R. J.;
Brain, D. A.;
Curry, S. M.;
Bougher, S.;
Parkinson, C. D.;
Jakosky, B. M.

Publication type:

Article

Nightside ionosphere of Mars: Composition, vertical structure, and variability.

Published in:

Journal of Geophysical Research. Space Physics, 2017, v. 122, n. 4, p. 4712, doi. 10.1002/2016JA023508

By:

Girazian, Z.;
Mahaffy, P. R.;
Lillis, R. J.;
Benna, M.;
Elrod, M.;
Jakosky, B. M.

Publication type:

Article

MAVEN measured oxygen and hydrogen pickup ions: Probing the Martian exosphere and neutral escape.

Published in:

Journal of Geophysical Research. Space Physics, 2017, v. 122, n. 3, p. 3689, doi. 10.1002/2016JA023371

By:

Rahmati, A.;
Larson, D. E.;
Cravens, T. E.;
Lillis, R. J.;
Halekas, J. S.;
McFadden, J. P.;
Dunn, P. A.;
Mitchell, D. L.;
Thiemann, E. M. B.;
Eparvier, F. G.;
DiBraccio, G. A.;
Espley, J. R.;
Mazelle, C.;
Jakosky, B. M.

Publication type:

Article

MAVEN observations of the solar cycle 24 space weather conditions at Mars.

Published in:

Journal of Geophysical Research. Space Physics, 2017, v. 122, n. 3, p. 2768, doi. 10.1002/2016JA023495

By:

Lee, C. O.;
Hara, T.;
Halekas, J. S.;
Thiemann, E.;
Chamberlin, P.;
Eparvier, F.;
Lillis, R. J.;
Larson, D. E.;
Dunn, P. A.;
Espley, J. R.;
Gruesbeck, J.;
Curry, S. M.;
Luhmann, J. G.;
Jakosky, B. M.

Publication type:

Article

Comparative study of the Martian suprathermal electron depletions based on Mars Global Surveyor, Mars Express, and Mars Atmosphere and Volatile EvolutioN mission observations.

Published in:

Journal of Geophysical Research. Space Physics, 2017, v. 122, n. 1, p. 857, doi. 10.1002/2016JA023205

By:

Steckiewicz, M.;
Garnier, P.;
André, N.;
Mitchell, D. L.;
Andersson, L.;
Penou, E.;
Beth, A.;
Fedorov, A.;
Sauvaud, J.-A.;
Mazelle, C.;
Brain, D. A.;
Espley, J. R.;
McFadden, J.;
Halekas, J. S.;
Larson, D. E.;
Lillis, R. J.;
Luhmann, J. G.;
Soobiah, Y.;
Jakosky, B. M.

Publication type:

Article

MAVEN observations of electron-induced whistler mode waves in the Martian magnetosphere.

Published in:

Journal of Geophysical Research. Space Physics, 2016, v. 121, n. 10, p. 9717, doi. 10.1002/2016JA023194

By:

Harada, Y.;
Andersson, L.;
Fowler, C. M.;
Mitchell, D. L.;
Halekas, J. S.;
Mazelle, C.;
Espley, J.;
DiBraccio, G. A.;
McFadden, J. P.;
Brain, D. A.;
Xu, S.;
Ruhunusiri, S.;
Larson, D. E.;
Lillis, R. J.;
Hara, T.;
Livi, R.;
Jakosky, B. M.

Publication type:

Article

Observations of the nightside ionosphere of Mars by the Mars Express Radio Science Experiment (MaRS).

Published in:

Journal of Geophysical Research. Space Physics, 2012, v. 117, n. A12, p. n/a, doi. 10.1029/2012JA018185

By:

Withers, Paul;
Fillingim, M. O.;
Lillis, R. J.;
Häusler, B.;
Hinson, D. P.;
Tyler, G. L.;
Pätzold, M.;
Peter, K.;
Tellmann, S.;
Witasse, O.

Publication type:

Article

Electron pitch angle distributions as indicators of magnetic field topology near Mars.

Published in:

Journal of Geophysical Research. Space Physics, 2007, v. 112, n. A9, p. n/a, doi. 10.1029/2007JA012435

By:

Brain, D. A.;
Lillis, R. J.;
Mitchell, D. L.;
Halekas, J. S.;
Lin, R. P.

Publication type:

Article

Magnetic Field Signatures of Craters on Mars.

Published in:

Geophysical Research Letters, 2024, v. 51, n. 6, p. 1, doi. 10.1029/2023GL106788

By:

Mittelholz, A.;
Steele, S. C.;
Fu, R. R.;
Johnson, C. L.;
Lillis, R. J.;
Stucky de Quay, G.

Publication type:

Article