The Infrared Properties of Massive Stars in the Magellanic Clouds

Bonanos, A. Z., Lennon, D. J., Massa, D. L., Sewilo, M., Koehlinger, F., Panagia, N., van Loon, J. Th., Evans, C. J., Smith, L. J., Meixner, M., Gordon, K., & SAGE Teams
2011, Société Royale des Sciences de Liège, 80, 346

We present highlights of our study of the infrared properties of massive stars in the Large and Small Magellanic Clouds (from Bonanos et al. 2009, 2010), which are based on the Spitzer SAGE surveys of these galaxies. We have compiled catalogs of spectroscopically confirmed massive stars in each galaxy, as well as photometric catalogs for a subset of these stars that have infrared counterparts in the SAGE database, with uniform photometry from 0.3 to 24 μm in the UBVIJHKs+IRAC+MIPS24 bands. These catalogs enable a comparative study of infrared excesses of OB stars, classical Be stars, yellow and red supergiants, Wolf-Rayet stars, Luminous Blue Variables and supergiant B[e] stars, as a function of metallicity, and provide the first roadmaps for interpreting luminous, massive, resolved stellar populations in nearby galaxies at infrared wavelengths.


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