1997A&A...320L..17W

Query : 1997A&A...320L..17W

1997A&A...320L..17W - Astronomy and Astrophysics, volume 320L17-20 (1997/4-2)

Millimeter interferometry towards the ultra-compact H II region W3(OH).

WYROWSKI F., HOFNER P., SCHILKE P., WALMSLEY C.M., WILNER D.J. and WINK J.E.

Abstract (from CDS):

We used the IRAM Interferometer to map the J=1-0 and J=2-1 lines of C17O as well as the continuum at 112 and 225 GHz of the W3(OH) region. Towards the cluster of water masers W3(H2O) we observed compact continuum emission at both frequencies with spectral index of 3.6 from hot dust emission. The C17O maps show more extended gas with the most massive molecular clump towards W3(H2O) and none towards W3(OH) itself. We derive a peak column density of 5x1023cm–2 at the H2O maser position. Dust and line fluxes are both consistent with a mass of 10M☉. Peaks of molecular line channel maps of C17O, CH3OH, and C2H5CN show an E-W orientation similar to the cluster of H2O masers.

Abstract Copyright: ∼

Journal keyword(s): ISM: individual objects: W 3(OH) - ISM: clouds - ISM: molecules - radio lines: ISM - Radio continuum: ISM - Techniques: interferometric

Simbad objects: 5

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Number of rows : 5
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 W 3 OH HII 02 27 04.1 +61 52 22           ~ 1064 2
2 W 3(H2O) Mas 02 27 04.6 +61 52 25           ~ 154 0
3 4C 67.05 Bla 02 28 50.05148365 +67 21 03.0293322   19.5 19.50 18.1   ~ 264 1
4 QSO B1730-130 Bla 17 33 02.70578907 -13 04 49.5482119   18 19.50 18.78 17.39 ~ 1198 1
5 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 3004 2

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