Spitzer SAGE Infrared Photometry of Massive Stars in the Large Magellanic Cloud

Content Provider	Semantic Scholar
Author	Bonanos, Alceste Z. Massa, Diane E. Di Sewilo, Marta Lennon, David J. Panagia, Nino Smith, Linda J. Meixner, Margaret Babler, Brian L. Bracker, Stephen B. Meade, Marilyn R. Gordon, K. D. Hora, Joseph L. Indebetouw, Rémy Whitney, Barbara A.
Copyright Year	2009
Abstract	We present a catalog of 1750 massive stars in the Large Magellanic Cloud, with accurate spectral types compiled from the literature, and a photometric catalog for a subset of 1268 of these stars, with the goal of exploring their infrared properties. The photometric catalog consists of stars with infrared counterparts in the Spitzer SAGE survey database, for which we present uniform photometry from 0.3 − 24 μm in the UBV IJHKs+IRAC+MIPS24 bands. The resulting infrared color–magnitude diagrams illustrate that the supergiant B[e], red supergiant and luminous blue variable (LBV) stars are among the brightest infrared point sources in the Large Magellanic Cloud, due to their intrinsic brightness, and at longer wavelengths, due to dust. We detect infrared excesses due to free– free emission among ∼ 900 OB stars, which correlate with luminosity class. We confirm the presence of dust around 10 supergiant B[e] stars, finding the shape of their spectral energy distributions (SEDs) to be very similar, in contrast to Giacconi Fellow. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA; bonanos, massa, sewilo, lennon, panagia, lsmith, meixner, kgordon@stsci.edu INAF/Osservatorio Astrofisico di Catania, Via S.Sofia 78, I-95123 Catania, Italy; and Supernova Ltd., VGV #131, Northsound Road, Virgin Gorda, British Virgin Islands. Department of Astronomy, 475 North Charter St., University of Wisconsin, Madison, WI 53706, USA; brian@sal.wisc.edu, s bracker@hotmail.com, meade@sal.wisc.edu Harvard-Smithsonian Center for Astrophysics, 60 Garden St., MS 67, Cambridge, MA 02138, USA; jhora@cfa.harvard.edu Department of Astronomy, University of Virginia, PO Box 3818, Charlottesville, VA 22903, USA; remy@virginia.edu Space Science Institute, 4750 Walnut St., Suite 205, Boulder, CO 80301, USA; bwhitney@spacescience.org
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://arxiv.org/pdf/0905.1328v3.pdf
Language	English
Access Restriction	Open
Subject Keyword	ABRA gene Astronomy Balbiani Body Bands Compiler Diagram Luminous Studio Magellanic Catalogue of Stars Outside broadcasting Photometry Ploidies Sea-Blue Histiocyte Syndrome Stars, Celestial Stellar classification Subgroup sage extract wavelength
Content Type	Text
Resource Type	Article