A Point-Source Survey of M31 with the Spitzer Space Telescope

Mould, Jeremy, Barmby, Pauline, Gordon, Karl, Willner, S. P., Ashby, M. L. N., Gehrz, R. D., Humphreys, Roberta, & Woodward, Charles E.
2008, The Astrophysical Journal, 687, 230


We explore the stellar population of M31 in a Spitzer Space Telescope survey utilizing IRAC and MIPS observations. Red supergiants are the brightest objects seen in the infrared; they are a prominent evolutionary phase. Due to their circumstellar envelopes, many of these radiate the bulk of their luminosity at IRAC wavelengths and do not stand out in the near-infrared or optically. Going fainter, we see large numbers of luminous asymptotic giant branch stars (AGB), many of which are known long-period variables. Relative to M33 the AGB carbon star population of M31 appears sparse, but this needs to be spectroscopically confirmed.

[ADS]

ADS Citation Query
# citations = 13
citations vs. year [year,citations]
[2009,2][2010,3][2011,2][2012,2][2013,3][2014,1]
Citations by year


Copyright © 2012 Karl D. Gordon All Rights Reserved