The Spectral Energy Distributions of the Be Stars of h and χ Persei

Details The Spectral Energy Distributions of the Be Stars of h and χ Persei The Spectral Energy Distributions of the Be Stars of h and χ Persei

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934421m&link_type=abstract

American Astronomical Society, AAS Meeting #219, #344.21

Astronomy and Astrophysics

Astronomy

Scientific paper

Classical Be stars host circumstellar disks composed of material ejected from the stellar surface during outburst events. Upwards of 30% of the brightest B-type stars in h and χ Per are known to be Be stars, thus providing an excellent laboratory for investigating the physical characteristics of these disk structures. Here we conduct a preliminary study of the cluster Be star disk physical properties and present their spectral energy distributions (SEDs). We compare optical and infrared photometry from WEBDA, 2MASS, WISE, Spitzer, and IRAS to Tlusty BSTAR2006 model SEDs based on our earlier measurements of the stellar photospheres. Using simple, reddened blackbody models we examine the disk contribution to the system flux and estimate the disk temperature.
We are grateful for support provided through NSF grant AST-1109247 and Lehigh University. A. N. Marsh Boyer is also supported by a Grant-In-Aid of Research from the National Academy of Sciences, administered by Sigma Xi.

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