Reference : Deep Impact: High-Resolution Optical Spectroscopy with the ESO VLT and the Keck I Tel...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/990
Deep Impact: High-Resolution Optical Spectroscopy with the ESO VLT and the Keck I Telescope
English
Jehin, Emmanuel mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Manfroid, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
Hutsemekers, Damien mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Cochran, A. L. mailto [Department of Astronomy and McDonald Observatory, University of Texas at Austin, C-1400, Austin; .]
Arpigny, Claude mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
Jackson, W. M. mailto [Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616; .]
Rauer, H. mailto [Institute of Planetary Research, DLR, Rutherfordstrasse 2, 12489 Berlin, Germany; .]
Schulz, R. mailto [ESA/RSSD, ESTEC, P.O. Box 299, NL-2200 AG Noordwijk, Netherlands; .]
Zucconi, J.-M. mailto [Observatoire de Besançon, 41 bis Avenue d'Observatorie, F-25010 Besançon Cedex, France; .]
1-Apr-2006
Astrophysical Journal
University of Chicago Press
641
Letters
145-148
Yes (verified by ORBi)
International
0004-637X
Chicago
IL
[en] Comets: General ; Comets: Individual: Name: 9P/Tempel 1 ; Solar System: Formation
[en] We report on observations of comet 9P/Tempel 1 carried out before, during, and after the NASA Deep Impact event (UT July 4), with the optical spectrometers UVES and HIRES mounted on the telescopes Kueyen of the ESO VLT (Chile) and Keck I on Mauna Kea (Hawaii), respectively. A total observing time of about 60 hr, distributed over 15 nights around the impact date, allowed us (1) to find a periodic variation of 1.709 +/- 0.009 days in the CN and NH flux, explained by the presence of two major active regions; (2) to derive a lifetime >~5 × 10[SUP]4[/SUP] s (at 1.5 AU) for the parent of the CN radical from a simple modeling of the CN light curve after the impact; (3) to follow the gas and dust spatial profiles' evolution during the 4 hr following the impact and derive the projected velocities (400 and 150 m s[SUP]-1[/SUP], respectively); and (4) to show that the material released by the impact has the same carbon and nitrogen isotopic composition as the surface material ([SUP]12[/SUP]C/[SUP] 13[/SUP]C = 95 +/- 15 and [SUP]14[/SUP]N/[SUP]15[/SUP]N = 145 +/- 20).
Researchers ; Students
http://hdl.handle.net/2268/990
10.1086/504110
http://adsabs.harvard.edu/abs/2006ApJ...641L.145J
http://de.arxiv.org/abs/astro-ph/0603306

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
20418.web.pdfPublisher postprint139.3 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.