2002ApJ...574...88T

Query : 2002ApJ...574...88T

2002ApJ...574...88T - Astrophys. J., 574, 88-94 (2002/July-3)

H I absorption in the gigamaser galaxy TXS 2226-184 and the relation between H I absorption and water emission.

TAYLOR G.B., PECK A.B., HENKEL C., FALCKE H., MUNDELL C.G., O'DEA C.P., BAUM S.A. and GALLIMORE J.F.

Abstract (from CDS):

We report on the discovery of H I in absorption toward the gigamaser galaxy TXS 2226-184 using the Very Large Array. The absorption appears to consist of two components–one with a width of 125 km.s–1 and one broader (420 km.s–1) – both toward the compact radio source in the nucleus of the galaxy. Based on these large velocity widths, we suggest that the H I absorption is produced in the central parsecs of the galaxy, on a scale similar to that which gives rise to the water maser emission. This brings to eight the number of galaxies known to exhibit both water masers and H I absorption. We explore the relationship between these two phenomena and present a physically motivated (but unfruitful) search for water maser emission in five radio galaxies known to exhibit strong H I absorption.

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Journal keyword(s): Galaxies: Active - Galaxies: Individual: Alphanumeric: TXS 2226-184 - Galaxies: Nuclei - Masers - Radio Lines: Galaxies

Simbad objects: 30

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Number of rows : 30
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 449 Sy2 01 16 07.2105079530 +33 05 21.649015602   15.90 14.96     ~ 302 4
3 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 1064 2
4 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
5 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
6 NGC 1386 Sy1 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 553 1
7 Z 31-36 Sy2 08 04 05.8608218112 +05 06 49.823376120   14.55 13.7     ~ 340 2
8 NGC 2639 Sy2 08 43 38.0682469032 +50 12 19.942091604 12.90 12.56 11.65     ~ 451 2
9 MCG-02-24-007 LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1077 1
10 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
11 IC 2560 Sy2 10 16 18.7073057664 -33 33 49.720274676   12.53 13.31 11.25 12.2 ~ 283 1
12 NGC 3735 Sy2 11 35 57.2748856320 +70 32 07.951921080   12.4       ~ 202 2
13 NGC 3894 Bla 11 48 50.35817663 +59 24 56.3822416   12.9   11.57   ~ 268 1
14 NGC 4151 Sy1 12 10 32.5759813872 +39 24 21.063527532   12.18 11.48     ~ 3938 2
15 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
16 NGC 4945 Sy2 13 05 27.279 -49 28 04.44   9.31 14.40 7.55   ~ 1582 2
17 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
18 NGC 5347 Sy2 13 53 17.7984934128 +33 29 27.011618196   13.46 12.70     ~ 373 1
19 NAME Circinus Galaxy Sy2 14 13 09.906 -65 20 20.47   10.89 9.84 10.6 10.0 ~ 1331 1
20 NGC 5506 Bla 14 13 14.8761010056 -03 12 27.556909272   15.25 14.38     ~ 1173 1
21 NGC 5793 Sy2 14 59 24.807 -16 41 36.55   14.47 13.32 12.77   ~ 147 1
22 ESO 103-35 Sy2 18 38 20.3204821536 -65 25 39.141804936   14.75 14.53 13.24   ~ 342 0
23 QSO B1946+708 BLL 19 45 53.51966298 +70 55 48.7285673   18.726 16.70 17.199   ~ 147 2
24 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2541 1
25 NAME TXFS 2226-1821 Sy2 22 29 12.4915751904 -18 10 47.242352208   16.92   15.73   ~ 65 1
26 QSO B2233-148 BLL 22 36 34.08715104 -14 33 22.1896043 19.53 19.13 18.66 18.05   ~ 172 1
27 QSO J2246-1206 Bla 22 46 18.23197022 -12 06 51.2775983   16.63 16.45 15.99   ~ 293 1
28 IC 1481 Sy1 23 19 25.0863724296 +05 54 21.836715048   14.5       ~ 107 1
29 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0
30 LEDA 71390 Sy1 23 25 19.72968960 -12 07 27.0814800   15.45 15.46     ~ 185 2

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