SIMBAD references

2022ApJ...936..186B - Astrophys. J., 936, 186 (2022/September-2)

Evidence for an Interaction between the Galactic Center Clouds M0.10-0.08 and M0.11-0.11.

BUTTERFIELD N.O., LANG C.C., GINSBURG A., MORRIS M.R., OTT J. and LUDOVICI D.A.

Abstract (from CDS):

We present high-resolution (∼2-3″; ∼0.1 pc) radio observations of the Galactic center cloud M0.10-0.08 using the Very Large Array at K and Ka band (∼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 (∼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.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Galactic center - Interstellar medium - Molecular clouds

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 8

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