Production de vapeur d'eau dans les cometes par emission Lyman alpha : experience SWAN a bord de SOHO

Details Production de vapeur d'eau dans les cometes par emission Lyman alpha : experience SWAN a bord de SOHO Production de vapeur d'eau dans les cometes par emission Lyman alpha : experience SWAN a bord de SOHO

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cr2...327..635g&link_type=abstract

Comptes Rendus de l'Academie des Sciences, Serie II, volume 327, pages 635-643

Computer Science

Comets, Atmosphere, Water Production, Soho

Scientific paper

SWAN (Solar Wind ANisotropies) is a ultraviolet photometer onboard the international satellite SOHO (SOlar Heliospheric Observatory). It is able to measure the Lyman alpha emission from hydrogen atoms of the cometary cloud when the water evaporating from the nucleus is photodissociated by the solar rays. Then one can deduce the vapor production rate against the heliocentric distance using a simple model of the distribution of the atoms in the coma.

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