Hostname: page-component-8448b6f56d-qsmjn Total loading time: 0 Render date: 2024-04-16T08:41:09.976Z Has data issue: false hasContentIssue false
  • English
  • Français

Molecular and ionized gas kinematics in the GC Radio Arc

Published online by Cambridge University Press:  09 February 2017

N. Butterfield ,
C.C. Lang ,
E. A. C. Mills ,
D. Ludovici ,
J. Ott Open the ORCID record for J. Ott [Opens in a new window]  and
M. R. Morris
N. Butterfield
Affiliation:
Dept. of Physics & Astronomy, University of Iowa, USA (email: natalie-butterfield@uiowa.edu)
C.C. Lang
Affiliation:
Dept. of Physics & Astronomy, University of Iowa, USA (email: natalie-butterfield@uiowa.edu)
E. A. C. Mills
Affiliation:
Dept. of Physics & Astronomy, San Jose State University, USA
D. Ludovici
Affiliation:
Dept. of Physics & Astronomy, University of Iowa, USA (email: natalie-butterfield@uiowa.edu)
J. Ott
Affiliation:
National Radio Astronomy Observatory, USA
M. R. Morris
Affiliation:
Dept. of Physics & Astronomy, University of California, Los Angeles, CA, USA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present NH3 and H64α+H63α VLA observations of the Radio Arc region, including the M0.20 – 0.033 and G0.10 – 0.08 molecular clouds. These observations suggest the two velocity components of M0.20 – 0.033 are physically connected in the south. Additional ATCA observations suggest this connection is due to an expanding shell in the molecular gas, with the centroid located near the Quintuplet cluster. The G0.10 – 0.08 molecular cloud has little radio continuum, strong molecular emission, and abundant CH3OH masers, similar to a nearby molecular cloud with no star formation: M0.25+0.01. These features detected in G0.10 – 0.08 suggest dense molecular gas with no signs of current star formation.

Keywords

Galaxy: centerISM: cloudsISM: moleculesmasers
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S322: The Multi-Messenger Astrophysics of the Galactic Centre , July 2016 , pp. 133 - 136
Copyright
Copyright © International Astronomical Union 2017 

References

Figer, D. F., McLean, I. S., & Morris, M. 1999, ApJ, 514, 202 Google Scholar
Handa, T., Sakano, M., Naito, S., Hiramatsu, M., & Tsuboi, M. 2006, ApJ, 636, 261 CrossRefGoogle Scholar
Kruijssen, J. M. D., Dale, J. E., & Longmore, S. N. 2015, MNRAS, 447, 1059 CrossRefGoogle Scholar
Lang, C. C., Goss, W. M., & Wood, O. S. 1997, ApJ, 474, 275 Google Scholar
Lang, C. C., Goss, W. M., Cyganowski, C., & Clubb, K. I. 2010, ApJS, 191, 275 CrossRefGoogle Scholar
Longmore, S. N., Rathborne, J., Bastian, N., et al. 2012, ApJ, 746, 117 CrossRefGoogle Scholar
Mills, E. A. C., Butterfield, N., Ludovici, D. A., et al. 2015, ApJ, 805, 72 Google Scholar
Schneider, F. R. N., Izzard, R. G., de Mink, S. E., et al. 2014, ApJ, 780, 117 Google Scholar
Serabyn, E. & Guesten, R. 1991, A&A, 242, 376 Google Scholar
Tsuboi, M., Ukita, N., & Handa, T. 1997, ApJ, 481, 263 CrossRefGoogle Scholar