A new approach to IRAS observations of Be stars

Details A new approach to IRAS observations of Be stars A new approach to IRAS observations of Be stars

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004newa....9..509z&link_type=abstract

New Astronomy, Volume 9, Issue 7, p. 509-524.

Astronomy and Astrophysics

Astronomy

10

Stars: Emission-Line, Be, Infrared: Stars

Scientific paper

The IRAS associations for 193 Be stars are identified in this paper. From the infrared colors, the IRAS low-resolution spectra (LRS) and the spectral types, some physical properties and environment of the samples are discussed. It can be concluded that not only free-free emission or free-bound emission from the circumstellar ionized gas can be responsible for the large IR excesses of Be stars as suggested previously, but also, for some Be stars, thermal radiation from the circumstellar dust and/or nebula around the star can produce large IR excess as well. It is also found that the far IR excess of Be stars increases with wavelengths.

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