Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21332504c&link_type=abstract
American Astronomical Society, AAS Meeting #213, #325.04; Bulletin of the American Astronomical Society, Vol. 41, p.381
Astronomy and Astrophysics
Astronomy
Scientific paper
The Galactic Plane Infrared Polarization Survey, GPIPS, has completed three full seasons of observations using the 1.8 m Perkins telescope outside Flagstaff, Arizona, and the Mimir instrument in its wide-field, imaging polarimetry mode. The region being surveyed for GPIPS spans galactic longitudes L=18-56 deg and -1 < B < +1 deg and covers the same region as GLIMPSE (Benjamin et al. 2003), the 13CO Galactic Ring Survey (Jackson et al. 2006), as well as 2MASS. GPIPS aims to measure background starlight polarization for stars as faint as 12th mag in H-band (1.6 um) over this entire 76 square degree zone via Mimir imaging polarimetry of 10x10 arcmin fields arrayed across over 3,200 overlapping 9x9 arcmin field centers. To date, some 1,200 fields have been observed, making GPIPS about 40% complete. Based on estimates from our pilot study, the expected number of stellar polarizations measured to date should be between 100,000 and 300,000 making GPIPS already one of the largest polarimetric data sets ever assembled. Fields that have been observed during the first three seasons were selected based on their potential for immediate scientific return, including all known star clusters in the region, all MAGPIS sources, all GLIMPSE bubbles, as well as several nearby large molecular clouds. This talk will review the survey characteristics, highlight magnetic field science enabled by GPIPS, and public access to this data set.
GPIPS is partially supported by NSF grant AST-0607500.
Clemens Dan P.
Jameson Katherine
Moreau John
Pavel Michael
Pinnick April
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