2001MNRAS.320..217S

Query : 2001MNRAS.320..217S

2001MNRAS.320..217S - Mon. Not. R. Astron. Soc., 320, 217-223 (2001/January-2)

Space-VLBI observations of the OH maser OH34.26+0.15: low interstellar scattering.

SLYSH V.I., VORONKOV M.A., MIGENES V., SHIBATA K.M., UMEMOTO T., ALTUNIN V.I., VAL'TTS I.E., KANEVSKY B.Z., POPOV M.V., KOVALENKO A.V., FOMALONT E.B., POPERECHENKO B.A., GORSHENKOV Y.N., CARLSON B.R., DOUGHERTY S.M., REYNOLDS J.E., JIANG D.R., SMIRNOV A.I. and GRACHEV V.G.

Abstract (from CDS):

We report on the first space-VLBI observations of the OH34.26+0.15 maser in two main-line OH transitions at 1665 and 1667MHz. The observations involved the space radio telescope on board the Japanese satellite HALCA and an array of ground radio telescopes. The map of the maser region and images of individual maser spots were produced with an angular resolution of 1mas, which is several times higher than the angular resolution available on the ground. The maser spots were only partly resolved and a lower limit to the brightness temperature {formmu1} was obtained. The maser seems to be located in the direction of low interstellar scattering, an order of magnitude lower than the scattering of a nearby extragalactic source and pulsar.

Abstract Copyright: 2001, Royal Astronomical Society

Journal keyword(s): masers - scattering - stars: formation - Hii regions - ISM: molecules

Simbad objects: 5

Full paper

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Number of rows : 5

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Sp type	#ref 1850 - 2026	#notes
1	NAME W 3 OH	HII	02 27 04.1	+61 52 22	~	1064	2
2	GAL 033.50+00.20	HII	18 51 46.71	+00 35 32.3	~	24	0
3	RAFGL 2271	SFR	18 53 18.54	+01 14 57.9	~	537	0
4	Caswell CH3OH 035.20-01.74	Mas	19 01 45.5	+01 13 28	~	21	0
5	Caswell OH 045.47+00.13	Mas	19 14 07.4	+11 12 20	~	15	0

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