IRAS Observations of Delta Scuti Stars

Details IRAS Observations of Delta Scuti Stars IRAS Observations of Delta Scuti Stars

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998dssn...12...16t&link_type=abstract

Delta Scuti Star Newsletter, Issue 12, p. 16-18.

Physics

1

Scientific paper

Mid-far infrared and radio observations of A-F stars are important for constraining the level of mass loss from these stars. It was theorized by Willson et al. (1987) that mass loss could play a significant role in the evolution of these stars, and could be responsible for shifting a star in the HR diagram by as much as one spectral class. Observations of normal A-F stars at 6 cm by Brown et al. (1990) and at the IRAS 12, 25, and 60 5m bands by Patten and Willson (1991) have shown that extreme mass loss rates (on the order of 10^-8 to 10^-9 solar masses per year) are not seen in these stars, but lower mass loss rates could still have significant impact on the evolution of these stars [see Guzik and Cox (1995) for example].

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