2007ApJ...661..173B

Query : 2007ApJ...661..173B

2007ApJ...661..173B - Astrophys. J., 661, 173-184 (2007/May-3)

H I and OH absorption toward NGC 6240.

BAAN W.A., HAGIWARA Y. and HOFNER P.

Abstract (from CDS):

VLA observations of large-scale H I and OH absorption in the merging galaxy of NGC 6240 are presented with 1" resolution. H I absorption is found across large areas of the extended radio continuum structure with a strong concentration toward the double nucleus. The OH absorption is confined to the nuclear region. The H I and OH observations identify fractions of the gas disks of the two galaxies and confirm the presence of central gas accumulation between the nuclei. The data clearly identify the nucleus of the southern galaxy as the origin of the symmetric superwind outflow and also reveal blueshifted components resulting from a nuclear starburst. Various absorption components are associated with large-scale dynamics of the system including a foreground dust lane crossing the radio structure in the northwest region.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: ISM - Galaxies: Nuclei - Galaxies: Starburst - ISM: Molecules - Masers

Nomenclature: Table 1: [CWB94] WN (Nos W0, E1) added, [CWB94] WW (Nos NW, NE, SE).

Simbad objects: 20

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Number of rows : 20
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 NGC 262 Bla 00 48 47.14147900 +31 57 25.0845702 14.04 13.90 13.06 8.53   ~ 778 2
2 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
3 Z 289-11 Sy2 09 35 51.6045544584 +61 21 11.589382368   15.20 15.50     ~ 617 2
4 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
5 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
6 ICRF J165103.6+012923 BLL 16 51 03.66236951 +01 29 23.4581070   22.7 21.2 20.50   ~ 79 1
7 [CWB94] NW Rad 16 52 56.76 +02 24 05.9           ~ 1 0
8 [CWB94] W3 Rad 16 52 57.98 +02 24 02.4           ~ 1 0
9 [CWB94] W2 Rad 16 52 58.22 +02 24 06.0           ~ 1 0
10 [CWB94] W1 Rad 16 52 58.22 +02 24 06.0           ~ 2 0
11 [CWB94] W4 Rad 16 52 58.26 +02 24 00.9           ~ 1 0
12 [CWB94] W0 Rad 16 52 58.49 +02 24 08.1           ~ 1 0
13 [CWB94] S Rad 16 52 58.84 +02 23 59.1           ~ 6 0
14 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
15 [CWB94] N2 Rad 16 52 58.90 +02 24 04.5           ~ 3 0
16 [CWB94] N1 Rad 16 52 58.916 +02 24 04.77           ~ 7 0
17 [CWB94] SE Rad 16 52 58.96 +02 24 01.0           ~ 1 0
18 [CWB94] NE Rad 16 52 59.14 +02 24 04.9           ~ 1 0
19 [CWB94] E1 Rad 16 52 59.26 +02 24 03.0           ~ 1 0
20 [CWB94] N3 Rad ~ ~           ~ 2 0

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