The Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey

Abstract

The Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey is a new survey of Galactic 13CO (1-0) emission. The survey used the SEQUOIA multi pixel array on the Five College Radio Astronomy Observatory 14 m telescope to cover a longitude range of l = 18 deg-55.7 deg and a latitude range of |b| < 1 deg, a total of 75.4 square degrees. Using both position-switching and On-The-Fly mapping modes, we achieved an angular sampling of 22 arcsec, better than half of the telescope's 46 arcsec angular resolution. The survey's velocity coverage is -5 to 135 km/s for Galactic longitudes l <= 40 deg and -5 to 85 km/s for Galactic longitudes l > 40 deg. At the velocity resolution of 0.21 km/s, the typical rms sensitivity is sigma(TA*)~0.13 K. The survey comprises a total of 1,993,522 spectra. We show integrated intensity images (zeroth moment maps), channel maps, position-velocity diagrams, and an average spectrum of the completed survey dataset. We also discuss the telescope and instrumental parameters, the observing modes, the data reduction processes, and the emission and noise characteristics of the dataset. The Galactic Ring Survey data are available to the community at www.bu.edu/galacticring or in DVD form by request.

Accepted ApJ. 21 pages (ApJ emulate style). 12 figures

Cited by in corpus (25)

• Cold Dark Clouds: The Initial Conditions for Star Formation
• A Catalog of Extended Green Objects (EGOs) in the GLIMPSE Survey: A new sample of massive young stellar object outflow candidates
• Star Formation in Disk Galaxies. I. Formation and Evolution of Giant Molecular Clouds via Gravitational Instability and Cloud Collisions
• Science With The Australian Square Kilometre Array Pathfinder
• Kinematic Distances to Molecular Clouds identified in the Galactic Ring Survey
• Resolution of the Distance Ambiguity for Galactic HII Regions
• Dynamically Driven Evolution of the Interstellar Medium in M51
• The Five College Radio Astronomy Observatory CO Mapping Survey of the Taurus Molecular Cloud
• Radio Recombination Lines in Galactic HII Regions
• Molecular clouds and clumps in the Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey
• Molecules in galaxies
• The Distance of the SNR Kes 75 and PWN PSR J1846-0258 System
• The Molecular Properties of Galactic HII Regions
• A Molecular Line Observation toward Massive Clumps Associated with Infrared Dark Clouds
• The Distance and Age of the SNR Kes 73 and AXP 1E 1841-045
• The RMS Survey: ${}^{13}$CO observations of candidate massive YSOs in the northern Galactic plane
• The Distances of SNR W41 and overlapping HII regions
• The Distances of SNRs Kes 69 and G21.5-0.9 from HI and 13CO Spectra
• VLA and XMM-Newton observations of the SNR W41/TeV Gamma-ray source HESS J1834-087
• Distance Determination to the Crab-like PWN G54.1+0.3 and Search for its Supernova Remnant Shell
• Radio and X-ray images of SNR G18.8+0.3 interacting with molecular clouds
• Massive-Star Forming Infrared Loop around the Crab-like Supernova Remnant G54.1+0.3: Post Main-Sequence Triggered Star Formation?
• A Search for H2CO 6cm Emission toward Young Stellar Objects III: VLA Observations
• The Discovery of a Massive Cluster of Red Supergiants with GLIMPSE
• A Probable New Globular Cluster in the Galactic Disk