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VLASSICK: The VLA Sky Survey in the Central Kiloparsec

Mills, EAC and Ginsburg, A and Kruijssen, JMD and Sjouwerman, L and Lang, CC and Mao, SA and Walsh, A and Su, M and Longmore, SN and Zhao, J-H and Meier, D and Morris, MR VLASSICK: The VLA Sky Survey in the Central Kiloparsec. NA. (Unpublished)

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Abstract

At a distance of 8 kpc, the center of our Galaxy is the nearest galactic nucleus, and has been the subject of numerous key projects undertaken by great observatories such as Chandra, Spitzer, and Herschel. However, there are still no surveys of molecular gas properties in the Galactic center with less than 30" (1 pc) resolution. There is also no sensitive polarization survey of this region, despite numerous nonthermal magnetic features apparently unique to the central 300 parsecs. In this paper, we outline the potential the VLASS has to fill this gap. We assess multiple considerations in observing the Galactic center, and recommend a C-band survey with 10 micro-Jy continuum RMS and sensitive to molecular gas with densities greater than 10^4 cm^{-3}, covering 17 square degrees in both DnC and CnB configurations ( resolution ~5"), totaling 750 hours of observing time. Ultimately, we wish to note that the upgraded VLA is not just optimized for fast continuum surveys, but has a powerful correlator capable of simultaneously observing continuum emission and dozens of molecular and recombination lines. This is an enormous strength that should be fully exploited and highlighted by the VLASS, and which is ideally suited for surveying the center of our Galaxy.

Item Type: Other
Additional Information: a White Paper submitted to provide input in planning the Very Large Array Sky Survey
Uncontrolled Keywords: astro-ph.GA; astro-ph.GA
Subjects: Q Science > QB Astronomy
Divisions: Astrophysics Research Institute
Publisher: NA
Related URLs:
Date Deposited: 21 Jan 2016 15:33
Last Modified: 21 Jan 2016 15:33
URI: http://researchonline.ljmu.ac.uk/id/eprint/2732

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