An extremely high velocity multipolar outflow around IRAS 20050 + 2720

Abstract

view Abstract Citations (50) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS An Extremely High Velocity Multipolar Outflow around IRAS 20050+2720 Bachiller, R. ; Fuente, A. ; Tafalla, M. Abstract 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. Publication: The Astrophysical Journal Pub Date: May 1995 DOI: 10.1086/187887 Bibcode: 1995ApJ...445L..51B Keywords: 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; Astrophysics; ISM: JETS AND OUTFLOWS; ISM: INDIVIDUAL ALPHANUMERIC: IRAS 20050; 2027; ISM: MOLECULES; RADIO LINES: ISM; STARS: FORMATION full text sources ADS | data products SIMBAD (15)