Exosphere Modeling of Proxima b: A Case Study of Photochemical Escape with a Venus-like Atmosphere
Abstract
Exoplanets orbiting M dwarfs within habitable zones are exposed to stellar environments more extreme than that terrestrial planets experience in our solar system, which can significantly impact the atmospheres of the exoplanets and affect their habitability and sustainability. This study provides the first prediction of hot oxygen corona structure and the associated photochemical loss from a 1 bar CO2-dominated atmosphere of a Venus-like rocky exoplanet, where dissociative recombination of O2+ ions is assumed to be the major source reaction for the escape of neutral O atoms and formation of the hot O corona (or exospheres) as on Mars and Venus. We employ a 3D Monte Carlo code to simulate the exosphere of Proxima Centauri b (PCb) based on the ionosphere simulated by a 3D magnetohydrodynamic model. Our simulation results show that variability of the stellar wind dynamic pressure over one orbital period of PCb does not affect the overall spatial structure of the hot O corona but contributes to the change in the global hot O escape rate that varies by an order of magnitude. The escape increases dramatically when the planet possesses its intrinsic magnetic fields as the ionosphere becomes more extended with the presence of a global magneticmore »
- Authors:
-
[1];
[2];
- Univ. of Maryland Baltimore County (UMBC), Baltimore, MD (United States); Center for Research and Exploration in Space Science and Technology II, Baltimore, MD (United States); NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
- Princeton Univ., NJ (United States)
- Univ. of Michigan, Ann Arbor, MI (United States)
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1880118
- Grant/Contract Number:
- AC02-09CH11466
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal
- Additional Journal Information:
- Journal Volume: 923; Journal Issue: 2; Journal ID: ISSN 0004-637X
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; Exoplanet evolution; Theoretical models; Extrasolar rocky planets; Exoplanet atmospheres; Upper atmosphere; Exosphere; Planetary atmospheres; Planetary magnetospheres; Planetary science
Citation Formats
Lee, Yuni, Dong, Chuanfei, and Tenishev, Valeriy. Exosphere Modeling of Proxima b: A Case Study of Photochemical Escape with a Venus-like Atmosphere. United States: N. p., 2021.
Web. doi:10.3847/1538-4357/ac26bb.
Lee, Yuni, Dong, Chuanfei, & Tenishev, Valeriy. Exosphere Modeling of Proxima b: A Case Study of Photochemical Escape with a Venus-like Atmosphere. United States. https://doi.org/10.3847/1538-4357/ac26bb
Lee, Yuni, Dong, Chuanfei, and Tenishev, Valeriy. Tue .
"Exosphere Modeling of Proxima b: A Case Study of Photochemical Escape with a Venus-like Atmosphere". United States. https://doi.org/10.3847/1538-4357/ac26bb. https://www.osti.gov/servlets/purl/1880118.
@article{osti_1880118,
title = {Exosphere Modeling of Proxima b: A Case Study of Photochemical Escape with a Venus-like Atmosphere},
author = {Lee, Yuni and Dong, Chuanfei and Tenishev, Valeriy},
abstractNote = {Exoplanets orbiting M dwarfs within habitable zones are exposed to stellar environments more extreme than that terrestrial planets experience in our solar system, which can significantly impact the atmospheres of the exoplanets and affect their habitability and sustainability. This study provides the first prediction of hot oxygen corona structure and the associated photochemical loss from a 1 bar CO2-dominated atmosphere of a Venus-like rocky exoplanet, where dissociative recombination of O2+ ions is assumed to be the major source reaction for the escape of neutral O atoms and formation of the hot O corona (or exospheres) as on Mars and Venus. We employ a 3D Monte Carlo code to simulate the exosphere of Proxima Centauri b (PCb) based on the ionosphere simulated by a 3D magnetohydrodynamic model. Our simulation results show that variability of the stellar wind dynamic pressure over one orbital period of PCb does not affect the overall spatial structure of the hot O corona but contributes to the change in the global hot O escape rate that varies by an order of magnitude. The escape increases dramatically when the planet possesses its intrinsic magnetic fields as the ionosphere becomes more extended with the presence of a global magnetic field. Furthermore, the extended hot O corona may lead to a more extended H exosphere through collisions between thermal H and hot O, which exemplifies the importance of considering nonthermal populations in exospheres to interpret future observations.},
doi = {10.3847/1538-4357/ac26bb},
journal = {The Astrophysical Journal},
number = 2,
volume = 923,
place = {United States},
year = {Tue Dec 21 00:00:00 EST 2021},
month = {Tue Dec 21 00:00:00 EST 2021}
}
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Works referenced in this record:
THE OCCURRENCE OF POTENTIALLY HABITABLE PLANETS ORBITING M DWARFS ESTIMATED FROM THE FULL KEPLER DATASET AND AN EMPIRICAL MEASUREMENT OF THE DETECTION SENSITIVITY
journal, June 2015
- Dressing, Courtney D.; Charbonneau, David
- The Astrophysical Journal, Vol. 807, Issue 1
An approach to numerical simulation of the gas distribution in the atmosphere of Enceladus: A MODEL OF ENCELADUS' ATMOSPHERE
journal, September 2010
- Tenishev, V.; Combi, M. R.; Teolis, B. D.
- Journal of Geophysical Research: Space Physics, Vol. 115, Issue A9
Adaptive numerical algorithms in space weather modeling
journal, February 2012
- Tóth, Gábor; van der Holst, Bart; Sokolov, Igor V.
- Journal of Computational Physics, Vol. 231, Issue 3
Martian corona: Nonthermal sources of hot heavy species
journal, January 2007
- Cipriani, F.; Leblanc, F.; Berthelier, J. J.
- Journal of Geophysical Research, Vol. 112, Issue E7
ENERGETIC NEUTRAL ATOMS AROUND HD 209458b: ESTIMATIONS OF MAGNETOSPHERIC PROPERTIES
journal, January 2010
- Ekenbäck, A.; Holmström, M.; Wurz, P.
- The Astrophysical Journal, Vol. 709, Issue 2
Solar cycle variability of hot oxygen atoms at Mars
journal, December 1998
- Kim, Jhoon; Nagy, Andrew F.; Fox, Jane L.
- Journal of Geophysical Research: Space Physics, Vol. 103, Issue A12
Water loss and evolution of the upper atmosphere and exosphere over martian history
journal, March 2010
- Valeille, Arnaud; Bougher, Stephen W.; Tenishev, Valeriy
- Icarus, Vol. 206, Issue 1
Hot oxygen atoms in the upper atmospheres of Venus and Mars
journal, May 1988
- Nagy, Andrew F.; Cravens, Thomas E.
- Geophysical Research Letters, Vol. 15, Issue 5
Mars exospheric thermal and non-thermal components: Seasonal and local variations
journal, November 2012
- Yagi, M.; Leblanc, F.; Chaufray, J. Y.
- Icarus, Vol. 221, Issue 2
Mars solar wind interaction: Formation of the Martian corona and atmospheric loss to space
journal, January 2007
- Chaufray, J. Y.; Modolo, R.; Leblanc, F.
- Journal of Geophysical Research, Vol. 112, Issue E9
Photochemical escape of oxygen from Mars: A comparison of the exobase approximation to a Monte Carlo method
journal, December 2009
- Fox, Jane L.; Hać, Aleksander B.
- Icarus, Vol. 204, Issue 2
Born dry in the photoevaporation desert: Kepler's ultra-short-period planets formed water-poor
journal, June 2017
- Lopez, Eric D.
- Monthly Notices of the Royal Astronomical Society, Vol. 472, Issue 1
MAVEN measured oxygen and hydrogen pickup ions: Probing the Martian exosphere and neutral escape
journal, March 2017
- Rahmati, A.; Larson, D. E.; Cravens, T. E.
- Journal of Geophysical Research: Space Physics, Vol. 122, Issue 3
Kinetic modeling of sodium in the lunar exosphere
journal, November 2013
- Tenishev, Valeriy; Rubin, Martin; Tucker, Orenthal J.
- Icarus, Vol. 226, Issue 2
Atmospheric Escape from Solar System Terrestrial Planets and Exoplanets
journal, May 2015
- Tian, Feng
- Annual Review of Earth and Planetary Sciences, Vol. 43, Issue 1
Exoplanet secondary atmosphere loss and revival
journal, July 2020
- Kite, Edwin S.; Barnett, Megan N.
- Proceedings of the National Academy of Sciences, Vol. 117, Issue 31
MOST OBSERVATIONS OF OUR NEAREST NEIGHBOR: FLARES ON PROXIMA CENTAURI
journal, September 2016
- Davenport, James R. A.; Kipping, David M.; Sasselov, Dimitar
- The Astrophysical Journal, Vol. 829, Issue 2
Multifluid MHD study of the solar wind interaction with Mars' upper atmosphere during the 2015 March 8th ICME event: DATA-MODEL COMPARISON OF ICME0308
journal, November 2015
- Dong, Chuanfei; Ma, Yingjuan; Bougher, Stephen W.
- Geophysical Research Letters, Vol. 42, Issue 21
Solar wind interaction with the Martian upper atmosphere: Crustal field orientation, solar cycle, and seasonal variations
journal, September 2015
- Dong, Chuanfei; Bougher, Stephen W.; Ma, Yingjuan
- Journal of Geophysical Research: Space Physics, Vol. 120, Issue 9
Estimation of the past and present Martian water-ice reservoirs by isotopic constraints on exchange between the atmosphere and the surface
journal, July 2003
- Lammer, H.; Kolb, C.; Penz, T.
- International Journal of Astrobiology, Vol. 2, Issue 3
Role of Planetary Obliquity in Regulating Atmospheric Escape: G-dwarf versus M-dwarf Earth-like Exoplanets
journal, September 2019
- Dong, Chuanfei; Huang, Zhenguang; Lingam, Manasvi
- The Astrophysical Journal, Vol. 882, Issue 2
Planetary evaporation by UV and X-ray radiation: basic hydrodynamics: Planetary evaporation
journal, September 2012
- Owen, James E.; Jackson, Alan P.
- Monthly Notices of the Royal Astronomical Society, Vol. 425, Issue 4
Narrow dust jets in a Diffuse gas Coma: a Natural Product of Small Active Regions on Comets
journal, March 2012
- Combi, M. R.; Tenishev, V. M.; Rubin, M.
- The Astrophysical Journal, Vol. 749, Issue 1
The Solar Neighborhood. Xxxv. Distances to 1404 m Dwarf Systems Within 25 pc in the Southern sky
journal, December 2014
- Winters, Jennifer G.; Henry, Todd J.; Lurie, John C.
- The Astronomical Journal, Vol. 149, Issue 1
Solar Wind Interaction With the Martian Upper Atmosphere: Roles of the Cold Thermosphere and Hot Oxygen Corona
journal, August 2018
- Dong, Chuanfei; Bougher, Stephen W.; Ma, Yingjuan
- Journal of Geophysical Research: Space Physics, Vol. 123, Issue 8
Hot carbon corona in Mars’ upper thermosphere and exosphere: 1. Mechanisms and structure of the hot corona for low solar activity at equinox: 3D Mars hot C: 1. Equinox/solar minimum
journal, May 2014
- Lee, Yuni; Combi, Michael R.; Tenishev, Valeriy
- Journal of Geophysical Research: Planets, Vol. 119, Issue 5
Escape of Hydrogen from Venus
journal, March 1982
- McElroy, Michael B.; Prather, Michael J.; Rodriguez, Jose M.
- Science, Vol. 215, Issue 4540
Atmospheric Escape From TOI-700 d: Venus versus Earth Analogs
journal, June 2020
- Dong, Chuanfei; Jin, Meng; Lingam, Manasvi
- The Astrophysical Journal, Vol. 896, Issue 2
The habitability of Proxima Centauri b: I. Irradiation, rotation and volatile inventory from formation to the present
journal, December 2016
- Ribas, Ignasi; Bolmont, Emeline; Selsis, Franck
- Astronomy & Astrophysics, Vol. 596
What makes a planet habitable?
journal, April 2009
- Lammer, H.; Bredehöft, J. H.; Coustenis, A.
- The Astronomy and Astrophysics Review, Vol. 17, Issue 2
Mars' volatile and climate history
journal, July 2001
- Jakosky, Bruce M.; Phillips, Roger J.
- Nature, Vol. 412, Issue 6843
Three-dimensional study of Mars upper thermosphere/ionosphere and hot oxygen corona: 1. General description and results at equinox for solar low conditions
journal, January 2009
- Valeille, Arnaud; Tenishev, Valeriy; Bougher, Stephen W.
- Journal of Geophysical Research, Vol. 114, Issue E11
Hot oxygen escape from Mars: Simple scaling with solar EUV irradiance
journal, January 2017
- Cravens, T. E.; Rahmati, A.; Fox, Jane L.
- Journal of Geophysical Research: Space Physics, Vol. 122, Issue 1
Stellar wind interaction and pick-up ion escape of the Kepler-11 “super-Earths”
journal, February 2014
- Kislyakova, K. G.; Johnstone, C. P.; Odert, P.
- Astronomy & Astrophysics, Vol. 562
Atmospheric escape from the TRAPPIST-1 planets and implications for habitability
journal, December 2017
- Dong, Chuanfei; Jin, Meng; Lingam, Manasvi
- Proceedings of the National Academy of Sciences, Vol. 115, Issue 2
Numerical Simulation of dust in a Cometary Coma: Application to Comet 67p/Churyumov-Gerasimenko
journal, April 2011
- Tenishev, Valeriy; Combi, Michael R.; Rubin, Martin
- The Astrophysical Journal, Vol. 732, Issue 2
Loss of the Martian atmosphere to space: Present-day loss rates determined from MAVEN observations and integrated loss through time
journal, November 2018
- Jakosky, B. M.; Brain, D.; Chaffin, M.
- Icarus, Vol. 315
Theory of Low-Mass Stars and Substellar Objects
journal, September 2000
- Chabrier, Gilles; Baraffe, Isabelle
- Annual Review of Astronomy and Astrophysics, Vol. 38, Issue 1
Aspects of solar wind interaction with Mars: comparison of fluid and hybrid simulations
journal, January 2007
- Erkaev, N. V.; Bößwetter, A.; Motschmann, U.
- Annales Geophysicae, Vol. 25, Issue 1
MAVEN observations of the response of Mars to an interplanetary coronal mass ejection
journal, November 2015
- Jakosky, B. M.; Grebowsky, J. M.; Luhmann, J. G.
- Science, Vol. 350, Issue 6261
Stochastic models of hot planetary and satellite coronas: a photochemical source of hot Oxygen in the upper atmosphere of Mars
journal, January 2005
- Krest?yanikova, M. A.; Shematovich, V. I.
- Solar System Research, Vol. 39, Issue 1
Three-dimensional study of Mars upper thermosphere/ionosphere and hot oxygen corona: 2. Solar cycle, seasonal variations, and evolution over history
journal, January 2009
- Valeille, Arnaud; Combi, Michael R.; Bougher, Stephen W.
- Journal of Geophysical Research, Vol. 114, Issue E11
Effects of Global and Regional Dust Storms on the Martian Hot O Corona and Photochemical Loss
journal, March 2020
- Lee, Yuni; Fang, Xiaohua; Gacesa, Marko
- Journal of Geophysical Research: Space Physics, Vol. 125, Issue 4
Nonthermal escape of the atmospheres of Venus, Earth, and Mars
journal, November 1996
- Shizgal, Bernie D.; Arkos, Gregory G.
- Reviews of Geophysics, Vol. 34, Issue 4
THE SPACE WEATHER OF PROXIMA CENTAURI b
journal, November 2016
- Garraffo, C.; Drake, J. J.; Cohen, O.
- The Astrophysical Journal, Vol. 833, Issue 1
The Interaction of Venus-Like, M-Dwarf Planets with the Stellar wind of Their host star
journal, June 2015
- Cohen, O.; Ma, Y.; Drake, J. J.
- The Astrophysical Journal, Vol. 806, Issue 1
Modeling Martian Atmospheric Losses over Time: Implications for Exoplanetary Climate Evolution and Habitability
journal, May 2018
- Dong, Chuanfei; Lee, Yuni; Ma, Yingjuan
- The Astrophysical Journal, Vol. 859, Issue 1
The Dehydration of Water Worlds via Atmospheric Losses
journal, September 2017
- Dong, Chuanfei; Huang, Zhenguang; Lingam, Manasvi
- The Astrophysical Journal, Vol. 847, Issue 1
Is Proxima Centauri b Habitable? A Study of Atmospheric Loss
journal, March 2017
- Dong, Chuanfei; Lingam, Manasvi; Ma, Yingjuan
- The Astrophysical Journal, Vol. 837, Issue 2
A comparison of 3-D model predictions of Mars' oxygen corona with early MAVEN IUVS observations: 3-D MODEL-IUVS/MAVEN COMPARISON
journal, November 2015
- Lee, Yuni; Combi, Michael R.; Tenishev, Valeriy
- Geophysical Research Letters, Vol. 42, Issue 21
Application of the Monte Carlo Method in Modeling Dusty Gas, Dust in Plasma, and Energetic Ions in Planetary, Magnetospheric, and Heliospheric Environments
journal, February 2021
- Tenishev, Valeriy; Shou, Yinsi; Borovikov, Dmitry
- Journal of Geophysical Research: Space Physics, Vol. 126, Issue 2
Effects of a Solar Flare on the Martian Hot O Corona and Photochemical Escape
journal, July 2018
- Lee, Yuni; Dong, Chuanfei; Pawlowski, Dave
- Geophysical Research Letters, Vol. 45, Issue 14
Local adaptive mesh refinement for shock hydrodynamics
journal, May 1989
- Berger, M. J.; Colella, P.
- Journal of Computational Physics, Vol. 82, Issue 1
How Thermal Evolution and Mass-Loss Sculpt Populations of Super-Earths and Sub-Neptunes: Application to the Kepler-11 System and Beyond
journal, November 2012
- Lopez, Eric D.; Fortney, Jonathan J.; Miller, Neil
- The Astrophysical Journal, Vol. 761, Issue 1
Three-dimensional direct simulation Monte-Carlo modeling of the coma of comet 67P/Churyumov-Gerasimenko observed by the VIRTIS and ROSINA instruments on board Rosetta
journal, March 2016
- Fougere, N.; Altwegg, K.; Berthelier, J. -J.
- Astronomy & Astrophysics, Vol. 588
Solar activity variations of the Venus thermosphere/ionosphere
journal, October 2001
- Fox, J. L.; Sung, K. Y.
- Journal of Geophysical Research: Space Physics, Vol. 106, Issue A10
The Planetary Air Leak
journal, May 2009
- Catling, David C.; Zahnle, Kevin J.
- Scientific American, Vol. 300, Issue 5
Martian magnetic storms: Martian Magnetic Storms
journal, June 2017
- Luhmann, J. G.; Dong, C. F.; Ma, Y. J.
- Journal of Geophysical Research: Space Physics, Vol. 122, Issue 6
Hot oxygen corona at Mars and the photochemical escape of oxygen: Improved description of the thermosphere, ionosphere, and exosphere: THE MARTIAN HOT O CORONA AND ESCAPE OF O
journal, November 2015
- Lee, Yuni; Combi, Michael R.; Tenishev, Valeriy
- Journal of Geophysical Research: Planets, Vol. 120, Issue 11
The escape of O from Mars: Sensitivity to the elastic cross sections
journal, January 2014
- Fox, Jane L.; Hać, Aleksander B.
- Icarus, Vol. 228
Mars: An Evolving Atmosphere
journal, January 1972
- McElroy, Michael B.
- Science, Vol. 175, Issue 4020
The HARPS search for southern extra-solar planets: XXXI. The M-dwarf sample
journal, January 2013
- Bonfils, X.; Delfosse, X.; Udry, S.
- Astronomy & Astrophysics, Vol. 549
Direct Simulation Monte Carlo modelling of the major species in the coma of comet 67P/Churyumov-Gerasimenko
journal, September 2016
- Fougere, Nicolas; Altwegg, K.; Berthelier, J. -J.
- Monthly Notices of the Royal Astronomical Society, Vol. 462, Issue Suppl 1
The Source of Green Light Emission Determined from a Heavy-Ion Storage Ring Experiment
journal, June 1997
- Kella, D.; Vejby-Christensen, L.; Johnson, P. J.
- Science, Vol. 276, Issue 5318
Impact of space weather on climate and habitability of terrestrial-type exoplanets
journal, July 2019
- Airapetian, V. S.; Barnes, R.; Cohen, O.
- International Journal of Astrobiology, Vol. 19, Issue 2
Effect of the Tiger Stripes on the water vapor distribution in Enceladus' exosphere
journal, December 2014
- Tenishev, Valeriy; Öztürk, Doğa Can Su; Combi, Michael R.
- Journal of Geophysical Research: Planets, Vol. 119, Issue 12
Hot carbon corona in Mars' upper thermosphere and exosphere: 2. Solar cycle and seasonal variability: 3D Mars hot C: 2. Solar Cycle/Seasons
journal, December 2014
- Lee, Yuni; Combi, Michael R.; Tenishev, Valeriy
- Journal of Geophysical Research: Planets, Vol. 119, Issue 12
The fast atomic oxygen corona extent of Mars
journal, December 1990
- Ip, W. -H.
- Geophysical Research Letters, Vol. 17, Issue 13
Hydrogen on venus: Exospheric distribution and escape
journal, October 1984
- Rodriguez, J. M.; Prather, M. J.; McElroy, M. B.
- Planetary and Space Science, Vol. 32, Issue 10
Bayesian search for low-mass planets around nearby M dwarfs – estimates for occurrence rate based on global detectability statistics
journal, May 2014
- Tuomi, Mikko; Jones, Hugh R. A.; Barnes, John R.
- Monthly Notices of the Royal Astronomical Society, Vol. 441, Issue 2
A terrestrial planet candidate in a temperate orbit around Proxima Centauri
journal, August 2016
- Anglada-Escudé, Guillem; Amado, Pedro J.; Barnes, John
- Nature, Vol. 536, Issue 7617
First observations of H 2 O and CO 2 vapor in comet 67P/Churyumov-Gerasimenko made by VIRTIS onboard Rosetta
journal, October 2015
- Bockelée-Morvan, D.; Debout, V.; Erard, S.
- Astronomy & Astrophysics, Vol. 583
Mars Upper Atmospheric Responses to the 10 September 2017 Solar Flare: A Global, Time‐Dependent Simulation
journal, August 2019
- Fang, Xiaohua; Pawlowski, David; Ma, Yingjuan
- Geophysical Research Letters, Vol. 46, Issue 16
The fate of early Mars' lost water: The role of serpentinization: WATER LOSS BY SERPENTINIZATION ON MARS
journal, May 2013
- Chassefière, Eric; Langlais, Benoit; Quesnel, Yoann
- Journal of Geophysical Research: Planets, Vol. 118, Issue 5
A study of suprathermal oxygen atoms in Mars upper thermosphere and exosphere over the range of limiting conditions
journal, March 2010
- Valeille, Arnaud; Combi, Michael R.; Tenishev, Valeriy
- Icarus, Vol. 206, Issue 1
A global multispecies single-fluid MHD study of the plasma interaction around Venus: MHD STUDY OF PLASMA INTERACTION AROUND VENUS
journal, January 2013
- Ma, Y. J.; Nagy, A. F.; Russell, C. T.
- Journal of Geophysical Research: Space Physics, Vol. 118, Issue 1
XUV-Exposed, Non-Hydrostatic Hydrogen-Rich Upper Atmospheres of Terrestrial Planets. Part II: Hydrogen Coronae and Ion Escape
journal, November 2013
- Kislyakova, Kristina G.; Lammer, Helmut; Holmström, Mats
- Astrobiology, Vol. 13, Issue 11
The Habitability of Proxima Centauri b: Environmental States and Observational Discriminants
journal, February 2018
- Meadows, Victoria S.; Arney, Giada N.; Schwieterman, Edward W.
- Astrobiology, Vol. 18, Issue 2
Cassini Ion and Neutral Mass Spectrometer: Enceladus Plume Composition and Structure
journal, March 2006
- Waite, J. H.
- Science, Vol. 311, Issue 5766
XUV-Exposed, Non-Hydrostatic Hydrogen-Rich Upper Atmospheres of Terrestrial Planets. Part I: Atmospheric Expansion and Thermal Escape
journal, November 2013
- Erkaev, Nikolai V.; Lammer, Helmut; Odert, Petra
- Astrobiology, Vol. 13, Issue 11
A Global Kinetic Model for Cometary Comae: The Evolution of the Coma of the Rosetta Target Comet Churyumov‐Gerasimenko throughout the Mission
journal, September 2008
- Tenishev, Valeriy; Combi, Michael; Davidsson, Björn
- The Astrophysical Journal, Vol. 685, Issue 1