Young Stellar Objects in the Spitzer Galactic First Look Survey Toward L1188

Details Young Stellar Objects in the Spitzer Galactic First Look Survey Toward L1188 Young Stellar Objects in the Spitzer Galactic First Look Survey Toward L1188

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..357..129s&link_type=abstract

The Spitzer Space Telescope: New Views of the Cosmos ASP Conference Series, Volume 357, proceedings of the conference held 9-12

Astronomy and Astrophysics

Astronomy

Scientific paper

The discovery of young stellar objects (YSO's) in the l=105.6, b=+4 field observed as part of the Spitzer Galactic First Look Survey (GFLS) is presented. This field serendipitously pointed at the rarely studied dark cloud L1188. Colors derived from 2MASS, IRAC and MIPS-24 μm photometry are used to identify YSOs, and color-color diagrams and SED's are presented. The large range of infrared colors observed in these sources implies a range of evolutionary states and disk properties, ranging from deeply embedded objects to those with no infrared excess observed shorter than 24 μms in wavelength. Several objects also have detected MIPS 70 μm counterparts. Many of these YSO's are spatially clustered into one of 3 newly identified groups; based on kinematic velocities from CO emission, two of these groups are estimated to be at a distance of 1 kpc while the remaining group is estimated to be in the Outer Arm at a distance of 6.7 kpc. The closer groups are along the edge of the Cepheus Bubble, suggesting that triggered star formation may be occurring. These observations demonstrate the power of Spitzer to detect YSO's at a large range of distances in the Galaxy in a modest amount of telescope time.

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