SAGE-SMC: Surveying the Agents of Galaxy Evolution in the Tidally-Stripped, Low Metallicity Small Magellanic Cloud

Details SAGE-SMC: Surveying the Agents of Galaxy Evolution in the Tidally-Stripped, Low Metallicity Small Magellanic Cloud SAGE-SMC: Surveying the Agents of Galaxy Evolution in the Tidally-Stripped, Low Metallicity Small Magellanic Cloud

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21545921g&link_type=abstract

American Astronomical Society, AAS Meeting #215, #459.21; Bulletin of the American Astronomical Society, Vol. 42, p.489

Astronomy and Astrophysics

Astronomy

4

Scientific paper

SAGE-SMC is a Spitzer Legacy program (cycle 4) that has mapped the entire SMC (Bar, Wing, and Tail) with IRAC and MIPS. The SAGE-SMC observations cover 30 deg2, greatly expanding on the S3MC pathfinder survey (PI: Bolatto) which covered the inner 3 deg2 of the SMC. The main SAGE-SMC goal is to study the evolution of a single galaxy in detail. As the SMC is close (d 60 kpc), we can study the cycle of star formation and dust by studying of injection of material into the interstellar medium (ISM) from evolved stars, the contents of the present day ISM, and how the ISM is consumed in regions of star formation. The SMC is a unique target for such studies as it is nearby, low metallicity (1/5 Zsun), and tidally disrupted. The comparison of the SAGE-SMC observations with similar observations of the LMC (SAGE-LMC, PI: Meixner) and the Milky Way (e.g., GLIMPSE & MIPSGAL) will provide a solid understanding of galaxy evolution over a wide range of metallicities and star formation histories.

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