2012A&A...540A..50F


Query : 2012A&A...540A..50F

2012A&A...540A..50F - Astronomy and Astrophysics, volume 540A, 50-50 (2012/4-1)

Interstellar gas within ∼10 pc of Sagittarius A*.

FERRIERE K.

Abstract (from CDS):

We seek to obtain a coherent and realistic three-dimensional picture of the interstellar gas out to about 10 pc of the dynamical center of our Galaxy, which is supposed to be at Sgr A*. We review the existing observational studies on the different gaseous components that have been identified near Sgr A*, and retain all the information relating to their spatial configuration and/or physical state. Based on the collected information, we propose a three-dimensional representation of the interstellar gas, which describes each component in terms of both its precise location and morphology and its thermodynamic properties. The interstellar gas near Sgr A* can be represented by five basic components, which are, by order of increasing size: (1) a central cavity with roughly equal amounts of warm ionized and atomic gases; (2) a ring of mainly molecular gas; (3) a supernova remnant filled with hot ionized gas; (4) a radio halo of warm ionized gas and relativistic particles; and (5) a belt of massive molecular clouds. While the halo gas fills ≃80% of the studied volume, the molecular components enclose ≃98% of the interstellar mass.

Abstract Copyright:

Journal keyword(s): ISM: structure - Galaxy: center - Galaxy: nucleus - ISM: general - ISM: kinematics and dynamics - ISM: supernova remnants

Simbad objects: 12

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Number of rows : 12
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 GCM -0.13 -0.08 MoC 17 45 25.2 -29 05 30           ~ 118 1
2 NAME Sgr A West HII 17 45 39.4 -29 00 24           ~ 369 0
3 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13443 0
4 GCIRS 13 Em* 17 45 39.76 -29 00 29.8           ~ 134 0
5 GCIRS 3 * 17 45 39.80 -29 00 23.9           ~ 144 0
6 GCIRS 7 * 17 45 39.987 -29 00 22.24           M2 361 0
7 GCIRS 16 Cl* 17 45 40.0 -29 00 28           ~ 343 0
8 NAME Galactic Circumnuclear Disk PoG 17 45 40.0 -29 00 28           ~ 148 0
9 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4044 3
10 NAME Sgr A East Rad 17 45 41 -29 00.8           ~ 482 2
11 SNR G359.9-00.9 SNR 17 45.8 -29 03           ~ 27 1
12 GCM -0.02 -0.07 MoC 17 45 50.4 -28 59 06           ~ 158 0

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2023.02.01-20:30:31

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