MIPSGAL: A View of the Cold and Dusty in the Inner Galactic Plane with the Spitzer Space Telescope

Astronomy and Astrophysics – Astronomy

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Scientific paper

The MIPSGAL project is a 278 square degree imaging survey of the inner Galactic plane (|l| < 60 degrees) at 24 and 70 microns using the MIPS instrument on the Spitzer Space Telescope. A region almost identical to the GLIMPSE survey field has been observed with resolutions of 6 and 18 arcseconds and 3 sigma point source sensitivites of 1 and 75 mJy, at 24 and 70 microns, respectively. MIPSGAL is sensitive to both the youngest protostars and evolved stars encompassed by dust shells. Complementary to the GLIMPSE survey and upcoming far-infrared and submillimeter Galactic plane surveys, MIPSGAL is intended to identify all of the high mass star formation in the inner Galactic disk as well as probe the distribution, energetics and properties of interstellar dust. We present initial results of the survey including the two-dimesional distribution of protostars, evolved stars including potential LBVs and Wolf-Rayets as well as over 8000 candidate debris disk sources.

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