Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21925211s&link_type=abstract
American Astronomical Society, AAS Meeting #219, #252.11
Astronomy and Astrophysics
Astronomy
Scientific paper
The I-GALFA Survey provides a unique window on the spiral structure of the Milky Way as it contains three coherent 21 cm features that have been identified as spiral arms: the Perseus Arm, the Outer Arm, and the recently discovered Outer Scutum-Centaurus Arm. Moreover, all three of these arms lie beyond the solar circle (although the Perseus arm is thought to cross interior to the solar circle for l< 50 degrees), so this gas does not suffer the kinematic distance ambiguity encountered in the inner Galaxy. We use this data and the CO surveys compiled by Dame et al (2001) to target a search for distant star formation regions seen in the Spitzer Space Telescope/GLIMPSE and WISE mid-infrared all-sky surveys. We characterize the HI arms, and present the star formation regions that may be potentially associated with these three arms. Many of these objects will need spectroscopic follow-up, but some have been previously identified in the Green Bank Telescope HII Region Discovery Survey of Anderson et al (2011). The Inner Galaxy ALFA (I-GALFA) survey is part of the Galactic ALFA HI data set obtained with the Arecibo L-band Feed Array (ALFA) on the Arecibo 305m telescope. Arecibo Observatory is part of the National Astronomy and Ionosphere Center, operated sequentially by Cornell University and Stanford Research Institute under Cooperative Agreement with the U.S. National Science Foundation.
Benjamin Ronald
Douglas Kevin Arthur
Gibson Steven
Gostisha Martin
Heiles Carl
No associations
LandOfFree
GALFA-HI: A Targeted Search For Star Formation on the Far Side of the Milky Way does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with GALFA-HI: A Targeted Search For Star Formation on the Far Side of the Milky Way, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GALFA-HI: A Targeted Search For Star Formation on the Far Side of the Milky Way will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1579668