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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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ANGEO | Articles | Volume 37, issue 4
Ann. Geophys., 37, 455–470, 2019
https://doi.org/10.5194/angeo-37-455-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Ann. Geophys., 37, 455–470, 2019
https://doi.org/10.5194/angeo-37-455-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 02 Jul 2019

Regular paper | 02 Jul 2019

Mercury's subsolar sodium exosphere: an ab initio calculation to interpret MASCS/UVVS observations from MESSENGER

Diana Gamborino et al.
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Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (further review by editor and referees) (25 Feb 2019) by Stephanie C. Werner
AR by Diana Gamborino on behalf of the Authors (27 Feb 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (28 Feb 2019) by Stephanie C. Werner
RR by Rosemary Killen (08 Mar 2019)
RR by Anna Milillo (01 Apr 2019)
ED: Publish subject to revisions (further review by editor and referees) (26 Apr 2019) by Stephanie C. Werner
AR by Anna Wenzel on behalf of the Authors (30 Apr 2019)  Author's response
ED: Referee Nomination & Report Request started (30 Apr 2019) by Stephanie C. Werner
RR by Rosemary Killen (10 May 2019)
ED: Publish subject to minor revisions (review by editor) (21 May 2019) by Stephanie C. Werner
AR by Diana Gamborino on behalf of the Authors (27 May 2019)  Author's response    Manuscript
ED: Publish as is (02 Jun 2019) by Stephanie C. Werner
Post-review adjustments
AA: Author's adjustment | EA: Editor approval
AA by Diana Gamborino on behalf of the Authors (25 Jun 2019)   Author's adjustment   Manuscript
EA: Adjustments approved (28 Jun 2019) by Stephanie C. Werner
Publications Copernicus
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Short summary
We propose that the temperature of the Na exosphere of Mercury near the subsolar point is not at high as proposed in previous works. Using a numerical model and the appropriate energy distributions for each release mechanism, we can explain observations made by MESSENGER in April 2012. Our results show that close to the surface, the dominant release mechanism for Na is evaporation due to the solar irradiation, and at high altitudes the best candidate is the release by micro-meteoroid impacts.
We propose that the temperature of the Na exosphere of Mercury near the subsolar point is not at...
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