Journal article
Evidence for an Interaction between the Galactic Center Clouds M0.10-0.08 and M0.11-0.11
The Astrophysical journal, Vol.936(2), p.186
09/01/2022
DOI: 10.3847/1538-4357/ac887c
Abstract
We present high-resolution (similar to 2-3 ''; similar to 0.1 pc) radio observations of the Galactic center cloud M0.10-0.08 using the Very Large Array at K and Ka band (similar to 25 and 36 GHz). The M0.10-0.08 cloud is located in a complex environment near the Galactic center Radio Arc and the adjacent M0.11-0.11 molecular cloud. From our data, M0.10-0.08 appears to be a compact molecular cloud (similar to 3 pc) that contains multiple compact molecular cores (5+; <0.4 pc). In this study, we detect a total of 15 molecular transitions in M0.10-0.08 from the following molecules: NH3, HC3N, CH3OH, HC5N, CH3CN, and OCS. We have identified more than sixty 36 GHz CH3OH masers in M0.10-0.08 with brightness temperatures above 400 K and 31 maser candidates with temperatures between 100 and 400 K. We conduct a kinematic analysis of the gas using NH3 and detect multiple velocity components toward this region of the Galactic center. The bulk of the gas in this region has a velocity of 51.5 km s(-1) (M0.10-0.08) with a lower-velocity wing at 37.6 km s(-1). We also detect a relatively faint velocity component at 10.6 km s(-1) that we attribute to being an extension of the M0.11-0.11 cloud. Analysis of the gas kinematics, combined with past X-ray fluorescence observations, suggests M0.10-0.08 and M0.11-0.11 are located in the same vicinity of the Galactic center and could be physically interacting.
Details
- Title: Subtitle
- Evidence for an Interaction between the Galactic Center Clouds M0.10-0.08 and M0.11-0.11
- Creators
- Natalie O. Butterfield - Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USACornelia C. Lang - University of IowaAdam Ginsburg - University of FloridaMark R. Morris - University of California, Los AngelesJuergen Ott - National Radio Astronomy ObservatoryDominic A. Ludovici - Coastal Carolina University
- Resource Type
- Journal article
- Publication Details
- The Astrophysical journal, Vol.936(2), p.186
- DOI
- 10.3847/1538-4357/ac887c
- ISSN
- 0004-637X
- eISSN
- 1538-4357
- Publisher
- IOP Publishing Ltd
- Number of pages
- 19
- Grant note
- AST-0907934; AST-15243000; AST-1614782; AST-2008101; CAREER2142300 / National Science Foundation (NSF); National Research Foundation of Korea NSF through the Grote Reber Fellowship Program
- Language
- English
- Date published
- 09/01/2022
- Academic Unit
- Liberal Arts and Science Admin; Physics and Astronomy
- Record Identifier
- 9984428828702771
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