Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...403..313w&link_type=abstract
Astronomy and Astrophysics, v.403, p.313-322 (2003)
Astronomy and Astrophysics
Astrophysics
10
Comets: General, Comets: Individual: Hale-Bopp
Scientific paper
The active comet C/1995 O1 (Hale-Bopp) was target of an optical long-term monitoring program carried out at the European Southern Observatory (ESO) (Rauer et al. \cite{rauer}, \cite{rauer:02}). Longslit spectra and images were obtained at heliocentric distances from 4.6 AU to 2.9 AU preperihelion and 2.8 AU to 12.8 AU postperihelion. Based on these data, the dust activity of comet Hale-Bopp is analysed. The color of the dust coma and the Afrho parameter are determined. A model for the dust release from the cometary nucleus is presented and used to compute dust production rates. The dust to gas ratio is determined.
Based on observations collected at the European Southern Observatory, Chile.
Helbert Jérôme
Jorda Laurent
Knollenberg Jörg
Rauer Heike
Weiler Markus
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