Asteroid exosphere:: A simulation for the ROSETTA flyby targets (2867) Steins and (21) Lutetia

被引：24

作者：

Schlaeppi, B. ^{[1
]}

Altwegg, K. ^{[1
]}

Wurz, P. ^{[1
]}

机构：

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

来源：

ICARUS | 2008年 / 195卷 / 02期

关键词：

asteroids; composition;

D O I：

10.1016/j.icarus.2007.12.021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Asteroids (2867) Steins and (21) Lutetia are two flyby targets of ESA's cornerstone mission Rosetta. Since Rosetta is a cometary mission, some of the instruments are designed to investigate the surroundings of small bodies. To prepare the operation of these instruments, in our case the ROSINA instrument, for the asteroid flyby's, we adapted a Monte Carlo simulation code, initially developed to simulate the exosphere of Mercury. Modelled release processes are solar wind sputtering, micrometeorite impact vaporisation, photon stimulated desorption and in some cases thermal release. Released species were derived from estimations of the asteroid composition. This was done for both asteroids by using results from ground based observations and meteorite science. We used the estimated compositions and other known properties as input for the simulation. Our results suggest that neutral sodium and oxygen might be the best species to investigate by the means of mass spectrometry: We expect to be able to detect these species at least in the exosphere of (21) Lutetia. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：674 / 685

页数：12

共 33 条

[1] WATER VAPORIZATION ON CERES [J].

AHEARN, MF ;

FELDMAN, PD .

ICARUS, 1992, 98 (01) :54-60

[2]

[Anonymous], SPUTTERING PARTICLE

[3] Rosina -: Rosetta orbiter spectrometer for ion and neutral analysis [J].

Balsiger, H. ;

Altwegg, K. ;

Bochsler, P. ;

Eberhardt, P. ;

Fischer, J. ;

Graf, S. ;

Jackel, A. ;

Kopp, E. ;

Langer, U. ;

Mildner, M. ;

Muller, J. ;

Riesen, T. ;

Rubin, M. ;

Scherer, S. ;

Wurz, P. ;

Wuthrich, S. ;

Arijs, E. ;

Delanoye, S. ;

De Keyser, J. ;

Neefs, E. ;

Nevejans, D. ;

Reme, H. ;

Aoustin, C. ;

Mazelle, C. ;

Medale, J.-L. ;

Sauvaud, J. A. ;

Berthelier, J.-J. ;

Bertaux, J.-L. ;

Duvet, L. ;

Illiano, J.-M. ;

Fuselier, S. A. ;

Ghielmetti, A. G. ;

Magoncelli, T. ;

Shelley, E. G. ;

Korth, A. ;

Heerlein, K. ;

Lauche, H. ;

Livi, S. ;

Loose, A. ;

Mall, U. ;

Wilken, B. ;

Gliem, F. ;

Fiethe, B. ;

Gombosi, T. I. ;

Block, B. ;

Carignan, G. R. ;

Fisk, L. A. ;

Waite, J. H. ;

Young, D. T. ;

Wollnik, H. .

SPACE SCIENCE REVIEWS, 2007, 128 (1-4) :745-801

[4] Asteroid target selection for the new Rosetta mission baseline - 21 Lutetia and 2867 Steins [J].

Barucci, MA ;

Fulchignoni, M ;

Fornasier, S ;

Dotto, E ;

Vernazza, P ;

Birlan, M ;

Binzel, RP ;

Carvano, J ;

Merlin, F ;

Barbieri, C ;

Belskaya, I .

ASTRONOMY & ASTROPHYSICS, 2005, 430 (01) :313-317

[5] SPUTTERING STUDIES WITH THE MONTE-CARLO PROGRAM TRIM.SP [J].

BIERSACK, JP ;

ECKSTEIN, W .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1984, 34 (02) :73-94

[6] Near infra-red spectroscopy of the asteroid 21 Lutetia - I. New results of long-term campaign [J].

Birlan, M. ;

Vernazza, P. ;

Fulchignoni, M. ;

Barucci, M. A. ;

Descamps, P. ;

Binzel, R. P. ;

Bus, S. J. .

ASTRONOMY & ASTROPHYSICS, 2006, 454 (02) :677-681

[7] Near-IR spectroscopy of asteroids 21 Lutetia, 89 Julia, 140 Siwa, 2181 Fogelin and 5480 (1989YK8), potential targets for the Rosetta mission; remote observations campaign on IRTF [J].

Birlan, Mirel ;

Barucci, Maria Antonietta ;

Vernazza, Pierre ;

Fulchignoni, Marcello ;

Binzel, Richard P. ;

Bus, Schelte J. ;

Belskaya, Irina ;

Fornasier, Sonia .

NEW ASTRONOMY, 2004, 9 (05) :343-351

[8]

Bowell E., 1989, ASTEROIDS, VII, P524

[9]

Britt DT., 2002, Asteroids III, P485, DOI [10.2307/j.ctv1v7zdn4.37, DOI 10.2307/J.CTV1V7ZDN4.37]

[10] Neutral sodium atoms release from the surface of the Moon induced by meteoroid impacts [J].

Bruno, M ;

Cremonese, G ;

Marchi, S .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 367 (03) :1067-1071

← 1 2 3 4 →