Journal article

Spitzer survey of the Large Magellanic Cloud, Surveying the Agents of a Galaxy's Evolution (sage). IV. Dust properties in the interstellar medium

Jean-Philippe Bernard, William T Reach, Deborah Paradis, Margaret Meixner, Roberta Paladini, Akiko Kawamura, Toshikazu Onishi, Uma Vijh, Karl Gordon, Remy Indebetouw, Joseph L Hora, Barbara Whitney, Robert Blum, Marilyn Meade, Brian Babler, Ed B Churchwell, Charles W Engelbracht, Bi-Qing For, Karl Misselt, Claus Leitherer Show all



The goal of this paper is to present the results of a preliminary analysis of the extended infrared (IR) emission by dust in the interstellar medium (ISM) of the Large Magellanic Cloud (LMC). We combine Spitzer Surveying the Agents of Galaxy Evolution (SAGE) and Infrared Astronomical Satellite (IRAS) data and correlate the infrared emission with gas tracers of H I, CO, and H α. We present a global analysis of the infrared emission as well as detailed modeling of the spectral energy distribution (SED) of a few selected regions. Extended emission by dust associated with the neutral, molecular, and diffuse ionized phases of the ISM is detected at all IR bands from 3.6 μm to 160 μm. The relative..

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