The density of the upper martian atmosphere measured by Lyman-α absorption with Mars Express SPICAM

J. Y. Chaufray; K. D. Retherford; D. G. Horvath; J. L. Bertaux; F. Forget; F. Leblanc

doi:10.1016/j.icarus.2011.07.025

The density of the upper martian atmosphere measured by Lyman-α absorption with Mars Express SPICAM

J. Y. Chaufray
, K. D. Retherford
, D. G. Horvath
, J. L. Bertaux
, F. Forget
, F. Leblanc

Research output: Contribution to journal › Article › peer-review

Abstract

Absorption of interplanetary Lyman-α emission by Mars' nightside lower thermosphere was observed by Mars Express Spectrometer for Investigation of Characteristics of the Atmosphere of Mars (SPICAM), and is analyzed to derive the CO₂ density at 110km during a martian year. The observed density seasonal variability is consistent with recent observations obtained by stellar occultations, proving that this method, though not as accurate as stellar occultations could be used complementary to them to characterize large variations of thermospheric density on Mars and provide a better spatial coverage by Lyman-α imagery.

Original language	English
Pages (from-to)	522-525
Number of pages	4
Journal	Icarus
Volume	215
Issue number	2
DOIs	https://doi.org/10.1016/j.icarus.2011.07.025
Publication status	Published - 1 Oct 2011

Keywords

Aeronomy
Atmospheres, structure
Mars
Mars, atmosphere

Access to Document

10.1016/j.icarus.2011.07.025

Cite this

@article{7e9675bac0c241db989a19fba6ecfd87,

title = "The density of the upper martian atmosphere measured by Lyman-α absorption with Mars Express SPICAM",

abstract = "Absorption of interplanetary Lyman-α emission by Mars' nightside lower thermosphere was observed by Mars Express Spectrometer for Investigation of Characteristics of the Atmosphere of Mars (SPICAM), and is analyzed to derive the CO2 density at 110km during a martian year. The observed density seasonal variability is consistent with recent observations obtained by stellar occultations, proving that this method, though not as accurate as stellar occultations could be used complementary to them to characterize large variations of thermospheric density on Mars and provide a better spatial coverage by Lyman-α imagery.",

keywords = "Aeronomy, Atmospheres, structure, Mars, Mars, atmosphere",

author = "Chaufray, \{J. Y.\} and Retherford, \{K. D.\} and Horvath, \{D. G.\} and Bertaux, \{J. L.\} and F. Forget and F. Leblanc",

year = "2011",

month = oct,

day = "1",

doi = "10.1016/j.icarus.2011.07.025",

language = "English",

volume = "215",

pages = "522--525",

journal = "Icarus",

issn = "0019-1035",

number = "2",

}

TY - JOUR

T1 - The density of the upper martian atmosphere measured by Lyman-α absorption with Mars Express SPICAM

AU - Chaufray, J. Y.

AU - Retherford, K. D.

AU - Horvath, D. G.

AU - Bertaux, J. L.

AU - Forget, F.

AU - Leblanc, F.

PY - 2011/10/1

Y1 - 2011/10/1

N2 - Absorption of interplanetary Lyman-α emission by Mars' nightside lower thermosphere was observed by Mars Express Spectrometer for Investigation of Characteristics of the Atmosphere of Mars (SPICAM), and is analyzed to derive the CO2 density at 110km during a martian year. The observed density seasonal variability is consistent with recent observations obtained by stellar occultations, proving that this method, though not as accurate as stellar occultations could be used complementary to them to characterize large variations of thermospheric density on Mars and provide a better spatial coverage by Lyman-α imagery.

AB - Absorption of interplanetary Lyman-α emission by Mars' nightside lower thermosphere was observed by Mars Express Spectrometer for Investigation of Characteristics of the Atmosphere of Mars (SPICAM), and is analyzed to derive the CO2 density at 110km during a martian year. The observed density seasonal variability is consistent with recent observations obtained by stellar occultations, proving that this method, though not as accurate as stellar occultations could be used complementary to them to characterize large variations of thermospheric density on Mars and provide a better spatial coverage by Lyman-α imagery.

KW - Aeronomy

KW - Atmospheres, structure

KW - Mars

KW - Mars, atmosphere

U2 - 10.1016/j.icarus.2011.07.025

DO - 10.1016/j.icarus.2011.07.025

M3 - Article

AN - SCOPUS:80052526249

SN - 0019-1035

VL - 215

SP - 522

EP - 525

JO - Icarus

JF - Icarus

IS - 2

ER -

The density of the upper martian atmosphere measured by Lyman-α absorption with Mars Express SPICAM

Abstract

Keywords

Access to Document

Fingerprint

Cite this