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From Hale-Bopp's activity to properties of its nucleus

Kührt, E. (2002) From Hale-Bopp's activity to properties of its nucleus. Earth, Moon, and Planets, 90 (1), pp. 61-65.

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Abstract

Because of the outstanding brightness of comet Hale-Bopp reliable production rates of several molecules could be measured over a wide range of heliocentric distances. The H2O-activity of a comet is closely connected with the energy balance and the composition of its surface. It is often assumed that more volatile molecules originate from subsurface regions. The CO observations provided an important data base for a better understanding of this matter. A thermal model has been applied to calculate gas production rates of Hale-Bopp. The strong obliquity of the spin axis causes pronounced seasonal effects and, therefore, an asymmetry of water activity with respect to perihelion. By comparing measured and calculated rates properties of the nucleus have been derived.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2003,
Title:From Hale-Bopp's activity to properties of its nucleus
Authors:
AuthorsInstitution or Email of Authors
Kührt, E.UNSPECIFIED
Date:2002
Journal or Publication Title:Earth, Moon, and Planets
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:90
Page Range:pp. 61-65
Status:Published
Keywords:Cometary nucleus, CO-production, Hale–Bopp's activity, thermal model, water production
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institut für Weltraumsensorik und Planetenerkundung
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 19:19

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