Results 101 to 110 of about 1,980 (216)

Mercury's Seasonal Sodium Exosphere: MESSENGER Orbital Observations

, 2014
The Mercury Atmospheric and Surface Composition Spectrometer (MASCS) Ultraviolet and Visible Spectrometer (UVVS) on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft now orbiting Mercury provides the first close-up ...
Cassidy, Timothy A., Merkel, Aimee W., Vervack, Ronald J., Jr., Sarantos, Menelaos, Killen, Rosemary M., Burger, Matthew H., McClintock, William E.   +6 more
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Modeling exospheres: analytical and numerical methods with application examples

Frontiers in Astronomy and Space Sciences
Exospheres, the tenuous gas environments surrounding planets, planetary satellites, and cometary comae, play a significant role in mediating the interactions of these astronomical bodies with their surrounding space environments.
Valeriy Tenishev, Yinsi Shou, Yuni Lee, Yuni Lee, Yingjuan Ma, Michael R. Combi   +5 more
doaj   +1 more source

Volatiles and Refractories in Surface-Bounded Exospheres in the Inner Solar System. [PDF]

Space Sci Rev, 2021
Grava C, Killen RM, Benna M, Berezhnoy AA, Halekas JS, Leblanc F, Nishino MN, Plainaki C, Raines JM, Sarantos M, Teolis BD, Tucker OJ, Vervack RJ, Vorburger A.   +13 more
europepmc   +1 more source

Planetary environments: exosphere modelling and a new particle detection study

, 2023
The thesis presents a study of the Mercury and Earth exospheres. For Mercury, we study and model the source and loss processes of the exosphere and compare the simulation results with observational data.
MORONI, MARTINA
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Observations and Models of the Lunar Sodium Exosphere 1988 - 1999

, 2012
Sodium in the lunar exosphere is easily observed from the Earth's surface due to its strong resonance emission lines in the visible region of the spectrum. Although sodium is a trace element, it is easily ejected from the surface by a number of processes.
Morgan, Thomas H., Potter, Andrew E., Farrell, William M., Sarantos, Menelaos, Killen, Rosemary, Naidu, Shantanu, Hurley, Dana M.   +6 more
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Correlation between Lunar Surface and Exospheric Sodium: Effects of Albedo-driven Temperature on Multilayer Sodium Reservoirs Rather than Surface Abundance Variations

The Astrophysical Journal
Sodium (Na) is a moderately volatile element in the lunar exosphere, released from the surface through thermal and nonthermal processes. We present a combined analysis of Chandrayaan-2 CLASS surface Na abundance, LADEE Ultraviolet–Visible Spectrometer ...
A. Devaraj, S. Narendranath, Sreeja. S. Kartha, Netra S. Pillai   +3 more
doaj   +1 more source

Photoionization Loss of Mercury's Sodium Exosphere: Seasonal Observations by MESSENGER and the THEMIS Telescope. [PDF]

Geophys Res Lett, 2021
Jasinski JM, Cassidy TA, Raines JM, Milillo A, Regoli LH, Dewey R, Slavin JA, Mangano V, Murphy N.   +8 more
europepmc   +1 more source

Micro-meteoroids impact vaporization (MMIV) as source for Ca and CaO exosphere along Mercury’s orbit

, 2022
The study of the micro-meteoroid environment is relevant to planetary science, space weathering of airless bodies and their upper atmospheric chemistry.
A. Aronica, S. Orsini, S. Massetti, A. Milillo, V. Mangano, R. Sordini, A. Mura, Andre’ N., C. Plainaki, A. Kazakov, R. Rispoli, E. De Angelis, MORONI MARTINA   +12 more
core  

Charon's refractory factory. [PDF]

Sci Adv, 2022
Raut U, Teolis BD, Kammer JA, Gimar CJ, Brody JS, Gladstone GR, Howett CJA, Protopapa S, Retherford KD.   +8 more
europepmc   +1 more source

Far-ultraviolet Flares and Variability of the Young M Dwarf AU Mic: A Nondetection of Planet C in Transit at Lyα

The Astronomical Journal
Atmospheric escape’s potential to shape the exoplanet population motivates detailed observations of systems actively undergoing escape. AU Mic is a young and active M dwarf hosting two close-in transiting sub- to Neptune-sized planets. Atmospheric escape
Keighley E. Rockcliffe, Elisabeth R. Newton, Allison Youngblood, Girish M. Duvvuri, Emily A. Gilbert, Peter Plavchan, Peter Gao, Hans-R. Müller, Adina D. Feinstein, Thomas Barclay, Eric D. Lopez   +10 more
doaj   +1 more source