Astronomy and Astrophysics – Astronomy
Scientific paper
May 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...445l..51b&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 445, no. 1, p. L51-L54
Astronomy and Astrophysics
Astronomy
41
Astronomical Spectroscopy, Emission Spectra, Infrared Astronomy, Interstellar Matter, Line Spectra, Molecular Flow, Molecular Gases, Spectrum Analysis, Star Formation, Cygnus Constellation, High Resolution, Infrared Astronomy Satellite, Radiation Sources, Radio Spectra, Stellar Luminosity
Scientific paper
We report high angular resolution maps in the CO 2 approaches 1 and CS 3 approaches 2 lines of the molecular gas around the embedded object IRAS 20050+2027. This is a 260 solar luminosity source located in the Cygnus Rift at 700 pc from the Sun. The CS data uncover a dense core of size 0.3 pc and 80 solar mass centered on the IRAS object. The CO map reveals a remarkable molecular outflow consisting of three pairs of lobes emanating from the close vicinity of the IRAS source. One of the lobe pairs is a highly collimated jet of extremely high velocity emission (LSR velocities up to +/- 70 km/s) containing molecular 'bullets'. We briefly examine different possibilties to explain the complex structure of the multipolar outflow. A single outflow appears unable to explain all the CO observations, so we suggest that two or three independent outflows emanate form different young sources embedded within the core.
Bachiller Rafael
Fuente Asuncion
Tafalla Mario
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