Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004rmxaa..40..223t&link_type=abstract
Revista Mexicana de Astronomía y Astrofísica Vol. 40, pp. 223-229 (2004) (http://www.astroscu.unam.mx/~rmaa/)
Astronomy and Astrophysics
Astronomy
1
Galaxy: Center, Galaxy: Individual (M33), Radio Continuum: Galaxies
Scientific paper
We present an analysis of radio continuum observations of the nucleus of the spiral galaxy M33, taken from the Very Large Array archives. Most of these observations were made with high angular resolution ( ≤ 1'') at different epochs and we have used them to search for radio emission associated with the ultraluminous X-ray (ULX) source at the center of M33. At 20, with an angular resolution of 1to z @.''3, we detect a source with flux density of 0.20Â+/-0.02 mJy that coincides within 0to z @.''2 with the position of the center of M33 as reported by 2MASS. In addition, at 3.6(with an angular resolution of 0to z @.''3), we detect two faint sources, one of them with a flux density of 0.04Â+/-0.01that is coincident with the 20source (and thus with the center of M33). The second 3.6source, with a flux density of 0.05Â+/-0.01, is 0to z @.''6 north of the first source. Within error, the Chandra position for the ULX overlaps with both 3.6sources.
Marti James
Rodriguez Luis F.
Trejo Alfonso
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