Spitzer/MIPS Pilot Survey of the Galactic Plane

Details Spitzer/MIPS Pilot Survey of the Galactic Plane Spitzer/MIPS Pilot Survey of the Galactic Plane

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.6350s&link_type=abstract

American Astronomical Society Meeting 207, #63.50; Bulletin of the American Astronomical Society, Vol. 37, p.1255

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the first results of our pilot 24 micron Spitzer Space Telescope survey of the Galactic plane. Our survey covers 5 deg2 within 41.o5< l<46.o5 and -1oWe find ˜ 25000 24 micron point sources in the survey region. Cross-correlation with the GLIMPSE point source archive indicates that nearly 50% of our sources have high quality (SNR>10) IRAC (3.6, 4.5, 5.8 and 8.0 microns) counterparts. These sources include main sequence and AGB stars, young protostars, and circumstellar disks. Samples of known sources of various classes show that they can be separated into distinct regions of MIPS/IRAC color-color space.
A key aspect of this project will be obtaining distances toward discrete 24 micron sources using the BU-FCRAO 13CO Galactic Ring Survey (GRS). The combination of our survey, GRS, and GLIMPSE reveals many interesting sources, including the radio/x-ray bright supernova remnant, 3C397. Strong 24 micron emission from 3C397 and the absence of any corresponding emission from the remaining Spitzer bands suggests the presence of line emission from the [O IV] 25.89 micron ground state 2P1/20-2P3/2 0 transition.

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