The Discovery of Argon in Comet C/1995 O1 (Hale-Bopp)

Autor:	S. A. Stern, D. C. Slater, M. C. Festou, J. Wm. Parker, G. R. Gladstone, M. F. A’Hearn, E. Wilkinson
Jazyk:	angličtina
Rok vydání:	2000
Předmět:	Physics Argon Sounding rocket Spectrometer Comet Astrophysics (astro-ph) chemistry.chemical_element FOS: Physical sciences Astronomy and Astrophysics Astrophysics Spectral line law.invention Telescope chemistry Space and Planetary Science law
Popis:	On 30.14 March 1997 we observed the EUV spectrum of the bright comet C/1995 O1 (Hale-Bopp) at the time of its perihelion, using our EUVS sounding rocket telescope/spectrometer. The spectra reveal the presence H Ly beta, O+, and, most notably, Argon. Modelling of the retrieved Ar production rates indicates that comet Hale-Bopp is enriched in Ar relative to cosmogonic expectations. This in turn indicates that Hale-Bopp's deep interior has never been exposed to the 35-40 K temperatures necessary to deplete the comet's primordial argon supply. 9 pages, 2 figures. ApJ, 545, in press (2000)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e726a36beab427bee8bd7fde42f4081 http://arxiv.org/abs/astro-ph/0011327 Zobrazit plný text záznamu