In situ mass spectrometry during the Lutetia flyby

被引：12

作者：

Altwegg, K. ^{[1
]}

Balsiger, H. ^{[1
]}

Calmonte, U. ^{[1
]}

Haessig, M. ^{[1
]}

Hofer, L. ^{[1
]}

Jaekel, A. ^{[1
]}

Schlaeppi, B. ^{[1
]}

Wurz, P. ^{[1
]}

Berthelier, J. J. ^{[2
]}

De Keyser, J. ^{[3
]}

Fiethe, B. ^{[4
]}

Fuselier, S. ^{[5
]}

Mall, U. ^{[6
]}

Reme, H. ^{[7
,8
]}

Rubin, M. ^{[9
]}

机构：

[1] Univ Bern, Inst Phys, CH-3012 Bern, Switzerland

[2] LATMOS, F-94100 Paris, France

[3] BIRA IASB, Space Phys Div, B-1180 Brussels, Belgium

[4] Tech Univ Carolo Wilhelmina Braunschweig, Inst Comp & Network Engn IDA, D-38106 Braunschweig, Germany

[5] Lockheed Martin Adv Technol Ctr, Space Phys Dept, Dept ADCS, Palo Alto, CA 94304 USA

[6] Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany

[7] Univ Toulouse, UPS OMP, IRAP, Toulouse, France

[8] CNRS, IRAP, F-31028 Toulouse 4, France

[9] Univ Michigan, Ann Arbor, MI 48109 USA

来源：

PLANETARY AND SPACE SCIENCE | 2012年 / 66卷 / 01期

基金：

瑞士国家科学基金会;

关键词：

Rosetta; ROSINA; Lutetia; In situ mass spectrometry; Spacecraft outgassing; Exosphere; ROSETTA; SIMULATION; TARGET;

D O I：

10.1016/j.pss.2011.08.011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

During the Rosetta flyby at asteroid Lutetia the ROSINA instrument tried to detect a thin exosphere of the asteroid. Although the instrument is sensitive enough to detect even very tenuous gases at a density level of 1 cm(-3) the Lutetia exosphere could not be unambiguously detected due to spacecraft outgassing, which was not constant because of the changing solar aspect angle. An upper limit for a water exosphere density at the flyby distance of 3160 km of (3.5 +/- 1.0) x 10(3) cm(-3) was deduced from the measurements. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：173 / 178

页数：6

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