Filling the Gaps in the GLIMPSE360 Survey
Abstract
Regarding the GLIMPSE360 Exploration Science project that is mapping the outer Galaxy, we have some good news and bad news to report. The good news is that the data are proving to be spectacular. Due to the higher dynamic range and the lower confusion compared to the GLIMPSE survey (of the inner Galaxy), we can detect stars out to the edge of the Galaxy, PAH bubbles at 3.6 microns; and YSO outflows, H II regions, and supernova remnants at 4.5 microns; and we can separate IR-excess sources in color-magnitude space. The bad news is that due to a variety of conditions we did not fully anticipate, a substantial portion of the survey observed so far (about 1/6 of the entire survey) has narrow gaps in coverage, in between AORs. We have corrected the problem and our recent data show no gaps. The complete coverage of this survey is meaningful for several science goals that are based on global studies, such as mapping Galactic structure and measuring star formation rate as a function of Galacto-centric radius. We request additional time to fill in these gaps and to realize the full potential of the survey.
- Publication:
-
Spitzer Proposal
- Pub Date:
- June 2010
- Bibcode:
- 2010sptz.prop70072W