2010ApJS..191..275L

Query : 2010ApJS..191..275L

2010ApJS..191..275L - Astrophys. J., Suppl. Ser., 191, 275-300 (2010/December-0)

A high-resolution survey of H I absorption toward the central 200 pc of the Galactic Center.

LANG C.C., GOSS W.M., CYGANOWSKI C. and CLUBB K.I.

Abstract (from CDS):

We present an H I absorption survey of the central 250 pc of the Galaxy. Very Large Array observations were made at 21 cm in the DnC and CnB configurations and have a resolution of ∼15'' (0.6 pc at the Galactic center (GC) distance) and a velocity resolution of ∼2.5 km/s. This study provides H I data with high spatial resolution, comparable with the many high-resolution observations which have been made of GC sources over the past 10 years. Here we present an overview of the H I absorption toward ∼40 well-known continuum sources and a detailed comparison of the ionized, atomic, and molecular components of the interstellar medium for the Sgr B, Radio Arc, and Sgr C regions. In these well-known regions, the atomic gas appears to be closely correlated in both velocity and distribution to the ionized and molecular gas, indicating that it resides in photodissociation regions related to the H II regions in the GC. Toward the majority of the radio continuum sources, H I absorption by the 3 kpc arm is detected, constraining these sources to lie beyond a 5 kpc distance in the Galaxy.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: nucleus - Galaxy: structure - H II regions - radio lines: ISM

Simbad objects: 65

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Number of rows : 65
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1498 0
2 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
3 QSO B1730-130 Bla 17 33 02.70578907 -13 04 49.5482119   18 19.50 18.78 17.39 ~ 1198 1
4 NAME the Ripple Filament Rad 17 43 52.0 -29 13 47           ~ 52 1
5 [LS95] 174104.0-292324 IR 17 44 15.4 -29 24 40           ~ 6 0
6 NAME Sgr C MoC 17 44 36.3 -29 28 13           ~ 400 0
7 [LKL2000] 44 Rad 17 44 37 -28 57.1           ~ 2 0
8 [LKL2000] 14 Rad 17 44 55 -29 41.1           ~ 2 0
9 [LKL2000] 37 Rad 17 44 59 -29 16.0           ~ 2 0
10 [LKL2000] 26 Rad 17 45 01 -29 28.6           ~ 3 0
11 GAL 359.8+00.2 Rad 17 45 03.9 -29 05 47           ~ 4 0
12 [LKL2000] 36 Rad 17 45 05 -29 16.8           ~ 2 0
13 [LKL2000] 40 Rad 17 45 06 -29 11.3           ~ 2 0
14 NAME NTFs PoC 17 45 -29.           ~ 51 2
15 NAME Sgr A Region reg 17 45 12 -28 48.3           ~ 955 0
16 GRS G000.17 +00.15 Rad 17 45 26.4 -28 42 46           ~ 2 0
17 MSX6C G359.9845+00.0275 HII 17 45 28.6 -28 56 03           ~ 15 0
18 [HJB85] Sgr A-H3 Rad 17 45 29.9 -28 54 36           ~ 12 0
19 GAL 000.012+00.12 HII 17 45 32.1 -28 56 13           ~ 15 0
20 [HJB85] Sgr A-H5 Rad 17 45 38.5 -28 53 28           ~ 17 0
21 NAME Sgr A West HII 17 45 39.4 -29 00 24           ~ 381 0
22 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
23 NAME Galactic Circumnuclear Disk PoG 17 45 40.0 -29 00 28           ~ 187 0
24 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
25 NAME Sgr A East SNR 17 45 41 -29 00.8           ~ 523 2
26 NAME Arched Filaments PoC 17 45 46.9 -28 50 39           ~ 54 1
27 NAME Arches Cluster Cl* 17 45 50.5 -28 49 28           ~ 792 0
28 NAME Quintuplet Cluster OpC 17 46 13.9 -28 49 48           ~ 561 0
29 SNR G000.3+00.0 SNR 17 46 15 -28 38.0           ~ 40 1
30 NAME Sickle HII 17 46 15.2 -28 49 49           ~ 128 0
31 NAME Pistol HII 17 46 16 -28 50.0           ~ 72 0
32 [LKL2000] 54 Rad 17 46 28 -28 36.0           ~ 2 0
33 GAL 000.6-00.0 Rad 17 47 -28.4           ~ 14 0
34 NAME Sgr B1 MoC 17 47 02.0 -28 31 57           ~ 177 0
35 NAME Sgr B MoC 17 47 02 -28 25.4           ~ 241 0
36 [MPG95] 17 PoC 17 47 12.1 -28 22 36           ~ 2 0
37 [MPG95] 13 PoC 17 47 13.0 -28 24 42           ~ 2 0
38 1LC 000.600-0.048 Rad 17 47 13.77 -28 26 53.3           ~ 8 0
39 IRAS 17440-2825 PN 17 47 14.6324145840 -28 26 48.550623720   18.42 17.24 16.97 16.12 ~ 20 0
40 SNR G000.9+00.1 SNR 17 47.3 -28 09           ~ 222 1
41 NAME Sgr B2 HII Y HII 17 47 18.6 -28 22 54           ~ 8 0
42 NAME Sgr B2 HII Z HII 17 47 18.7 -28 22 46           ~ 6 0
43 NAME Sgr B2 HII A HII 17 47 19.502 -28 22 59.92           ~ 17 0
44 NAME Sgr B2 HII B HII 17 47 19.900 -28 23 03.00           ~ 18 0
45 NAME Sgr B2 HII C HII 17 47 20.020 -28 23 18.28           ~ 13 0
46 NAME Sgr B2 HII D HII 17 47 20.054 -28 23 12.81           ~ 15 0
47 NAME Sgr B2 HII K HII 17 47 20.067 -28 22 14.08           ~ 7 0
48 NAME Sgr B2 HII E HII 17 47 20.098 -28 23 08.80           ~ 14 0
49 NAME Sgr B2 HII F HII 17 47 20.165 -28 23 04.77           ~ 19 0
50 NAME Sgr B2 (North) Rad 17 47 20.2 -28 22 21           ~ 742 1
51 NAME Sgr B2 HII G HII 17 47 20.273 -28 23 03.21           ~ 15 0
52 [MPG95] 18 PoC 17 47 20.3 -28 22 11           ~ 2 0
53 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2443 1
54 NAME Sgr B2 HII I HII 17 47 20.415 -28 23 05.15           ~ 19 0
55 NAME Sgr B2 (South) HII 17 47 20.430 -28 23 45.06           ~ 106 0
56 NAME Sgr B2 HII J HII 17 47 20.465 -28 22 56.05           ~ 10 0
57 NAME Sgr B2 Main Rad 17 47 20.5 -28 23 06           ~ 436 1
58 [MPG95] 15 PoC 17 47 20.5 -28 23 05           ~ 2 0
59 [MPG95] 12 PoC 17 47 21.9 -28 25 08           ~ 2 0
60 NAME Sgr B2 HII L HII 17 47 22.739 -28 21 56.48           ~ 15 0
61 [MPG95] 20 PoC 17 47 26.2 -28 22 05           ~ 2 0
62 NAME Sgr B2 HII R HII 17 47 26.4 -28 22 05           ~ 13 0
63 [OF84] 38 IR 17 47 35 -28 19.3           ~ 4 0
64 PMN J1751-2524 Rad 17 51 51.26253123 -25 24 00.0635706           ~ 91 1
65 NAME Sgr B2 (W) PoC ~ ~           ~ 3 0

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