Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002dps....34.1203m&link_type=abstract
American Astronomical Society, DPS Meeting #34, #12.03; Bulletin of the American Astronomical Society, Vol. 34, p.853
Astronomy and Astrophysics
Astronomy
Scientific paper
The SWAN instrument on board the SOHO spacecraft is a scanning Lyman-α imager capable of covering the entire sky on a daily basis. Comets whose extended neutral hydrogen envelope resonantly scatters solar Lyman-α light can be detected from the SWAN full sky maps down to an approximate total visual magnitude of 11. In addition to the synoptic full sky observations, SWAN conducts specific observations of bright comets with enhanced spatial resolution and photometric sensitivity. The promising comet 2000 WM1 was taken into the observing program from the beginning of November 2001 and was tracked throughout the perihelion. We present the analysis of all SWAN observations of C/2000 WM1 with derived water production rates around the perihelion passage including the January outburst. The work of J.T.T. Mäkinen is funded by the Academy of Finland. The attendance of J.T.T. Mäkinen to the 34th DPS Meeting is funded by the Vilho, Yrjö, and Kalle Väisälä Fund.
Bertaux Jean Loup
Kyrola Erkki
Lallement Rosine
Mäkinen Teemu T. J.
Quémerais Eric
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