Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-05-16
Astronomy and Astrophysics
Astrophysics
4 pages including 3 figures, accepted for publication in A&A Letter
Scientific paper
10.1051/0004-6361:20020719
We report the detection of 22 GHz water vapor emission toward the starburst galaxy NGC2146, made using the Effelsberg 100-m telescope. Interferometric observations with the Very Large Array (VLA) show that a part of the emission originates from two prominent sites of star formation that are associated with compact radio continuum sources, likely ultra-compact HII regions. It is concluded that the emission arises from the most luminous and distant water `kilomasers' detected so far. Our data increase the number of water maser detections in northern galaxies (Dec > -30 deg) with 100 micron IRAS point source fluxes > 50 Jy to 18%.
Henkel Carsten
Menten Karl. M.
Peck Alison Beth
Tarchi Andrea
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