The triple radio continuum source in Serpens - Its interaction with the ambient molecular gas

Details The triple radio continuum source in Serpens - Its interaction with the ambient molecular gas The triple radio continuum source in Serpens - Its interaction with the ambient molecular gas

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...384l..59t&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 384, Jan. 10, 1992, p. L59-L62. Research supported by SEUI.

Astronomy and Astrophysics

Astronomy

20

Continuous Radiation, Extragalactic Radio Sources, Molecular Gases, Pre-Main Sequence Stars, Radio Spectra, Very Large Array (Vla), Ammonia, Line Shape, Radio Jets (Astronomy), Star Formation

Scientific paper

VLA D observations of the NH3(1,1) and NH3(2,2) lines toward the triple radio continuum source in the Serpens region are presented. A nonthermal radio spectrum for the outer components of this triple radio source was suggested by Rodriguez et al. (1989). These spectral ammonia line observations were made in the VLA 4IF mode. A sensitivity of 4 mJy per channel of 48.8 kHz of resolution (about 0.6 km/s) was reached. This is the highest sensitivity for ammonia data obtained with the VLA. A perturbation of the molecular gas is found near the triple radio continuum source in terms of heating and broadening of the ammonia lines. These results convincingly support a Galactic nature for the triple radio source. The origin of the observed heating in the molecular gas is probably the luminosity of the central object. It is proposed, that the line broadening observed along the direction of the proper motions of the outer components of the triple radio source may be driven by a shock associated with a wind from the central object.

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