Hot Science With A "warm" Telescope: Galactic Studies With The Spitzer "warm" Mission

Details Hot Science With A "warm" Telescope: Galactic Studies With The Spitzer "warm" Mission Hot Science With A "warm" Telescope: Galactic Studies With The Spitzer "warm" Mission

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.1425f&link_type=abstract

American Astronomical Society, AAS Meeting #211, #14.25; Bulletin of the American Astronomical Society, Vol. 39, p.763

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Scientific paper

This paper describes the capabilities for Galactic science in the Spitzer Space Telescope "warm" mission phase. The unique capabilities of IRAC in this mission will allow to: complete the census of the Galactic plane by mapping it over the entire longitude range; measure extinction in conjunction with existing near-infrared surveys such as 2MASS, and at higher spatial resolution than other long wavelength surveys; observe heavily extincted Galactic areas such as bars, interacting dwarf satellites, and spiral arms, with superior penetration than near-infrared data; study larger regions of star formation surrounding massive molecular clouds, such as the outer regions of OB associations and distant GMCs, to augment present studies of clouds within 500 pc; conduct wide angle surveys of cool T and Y dwarfs, and AGB stars in the halo. In spring 2009, the liquid helium cryogen on-board Spitzer will be expended, but the observatory will remain operative with 3.6 and 4.5 micron imaging capabilities over two 5 arcmin X 5 arcmin fields-of-view. Sensitivity in these channels will remain unchanged from the cryogenic mission. During the warm mission, Spitzer can operate until early 2014 with extremely high-efficiency, providing up to 35,000 hours of science observing time. This enables several unprecedented opportunities to address fundamental and key scientific questions requiring large allocations of observing time, while maintaining opportunities for broad community use with more traditional time allocations.

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