Other
Scientific paper
Nov 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...315l.113m&link_type=abstract
Astronomy and Astrophysics, v.315, p.L113-L116
Other
7
Stars: Individual: Ss433, Cygnus X-1, Stars: Variables: Other, Ism: Clouds, Gamma Rays: Observations, Infrared: Stars, X-Rays: Stars
Scientific paper
We report the discovery of warm dust in the surroundings of the compact high energy sources SS433 and Cygnus X-1. In the jets of SS433 we have observed the infrared counterpart of the brighter X-ray knot at a distance of 50pc from the compact source. The observation reported here suggests that dust formation takes place in the ejecta, and that their infrared luminosity exceeds their X-ray luminosity. In Cygnus X-1 we find that the compact source is surrounded by an infrared envelope of 0.2pc radius. We propose that besides a gaseous component, warm dust components contribute to the infrared emission from the extended envelope.
Boulade Olivier
Cesarsky Catherine J.
Cesarsky Diego A.
Claret Antonio
Mirabel Felix I.
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