Magellanic Clouds Survey

Details Magellanic Clouds Survey Magellanic Clouds Survey

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop..125f&link_type=abstract

Spitzer Proposal ID #125

Physics

Scientific paper

Understanding star formation in a low-metallicity dwarf environment is fundamental to our understanding of the origin and evolution of galaxies is the early Universe. The Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC) are the nearest available laboratories to study star formation. This short program will obtain data that will enable us to prepare for a larger survey of the Clouds. The unique sensitivity and speed of IRAC will result in a survey that has up to 1000 times more sensitivity and 11 times better angular resolution than the most recent infrared surveys. This tremendous improvement in point source sensitivity and resolution will allow us to study the location and characteristics of 1-3 solar mass young stellar objects in the Clouds on ~0.5 pc scales. A large area survey is essential to the success of source classification and to the proper identification of young stellar objects. Central themes include: How does star formation vary with metallicity and environment across the clouds? Is there evidence for sequential, triggered star formation? Is star formation occurring in dense HI clumps with no obvious molecular counterparts?

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