2004MNRAS.351..279C

Query : 2004MNRAS.351..279C

2004MNRAS.351..279C - Mon. Not. R. Astron. Soc., 351, 279-284 (2004/June-2)

Molecular masers of OH, methanol and water in NGC 3576, NGC 3603 and RCW 79.

CASWELL J.L.

Abstract (from CDS):

New observations yielding precise position measurements of masers in NGC 3576, NGC 3603 and RCW 79 have been made with the Australia Telescope Compact Array. Two water masers and one OH maser are new discoveries, and the remaining 15 measurements refine positions of previously known masers of OH, methanol and water. The total of 18 maser detections are confined to nine distinct locations, all containing water. Three locations host all three species; two have water with methanol and one has water with OH. The specific combination of masers at any one site is believed to provide clues to the evolutionary stage of the very young massive star responsible for exciting the masers; the various combinations of masers are considered in this context.

Abstract Copyright: 2004 RAS

Journal keyword(s): masers - stars: formation - H ii regions - ISM: molecules - radio lines: ISM

Nomenclature: Table 1: Caswell OH LLL.lll+BB.bbb N=2 added, Caswell H2O LLL.lll+BB.bbb N=2 added, Caswell CH3OH LLL.lll+BB.bbb N=3 added.

Simbad objects: 19

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Number of rows : 19
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 MMB G291.270-00.719 Mas 11 11 49.44 -61 18 51.9           ~ 3 0
2 Caswell H2O 291.27-00.72 Mas 11 11 49.67 -61 18 53.8           ~ 4 0
3 NGC 3576 HII 11 11 53.2 -61 18 26           ~ 245 2
4 Caswell H2O 291.27-00.71 Mas 11 11 53.28 -61 18 24.1           ~ 14 0
5 MMB G291.274-00.709 Mas 11 11 53.35 -61 18 23.7           ~ 16 0
6 OH 291.274-00.709 Mas 11 11 53.44 -61 18 23.4           ~ 1 0
7 Caswell H2O 291.28-00.71 Mas 11 11 56.58 -61 19 01.1           ~ 4 0
8 NGC 3603 OpC 11 14 57.9 -61 14 32           ~ 1136 1
9 OH 291.61-00.53 Mas 11 15 02.58 -61 15 48.8           ~ 6 0
10 OH 291.57-00.43 Mas 11 15 05.67 -61 09 41.0           ~ 14 0
11 Caswell CH3OH 291.58-00.43 Mas 11 15 06 -76 41.0           ~ 4 0
12 Caswell H2O 291.582-00.435 Mas 11 15 06.17 -61 09 56.1           ~ 1 0
13 MMB G291.582-00.435 Mas 11 15 06.61 -61 09 58.3           ~ 3 0
14 Caswell H2O 291.629-00.541 Mas 11 15 08.88 -61 16 54.8           ~ 1 0
15 Caswell H2O 291.63-00.53 Mas 11 15 10.18 -61 16 12.7           ~ 2 0
16 GRS G308.60 +00.60 HII 13 39.9 -61 45           ~ 108 0
17 Caswell H2O 308.754+00.549 Mas 13 40 57.39 -61 45 43.2           ~ 1 0
18 OH 308.754+00.549 Mas 13 40 57.56 -61 45 42.9           ~ 1 0
19 MMB G308.754+00.549 Mas 13 40 57.60 -61 45 43.4           ~ 16 0

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