Abstract

view Abstract Citations (14) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS CS(2--1) Emission from Dense Gas in the Bipolar Outflow of CRL 618 Hajian, Arsen R. ; Phillips, J. A. ; Terzian, Yervant Abstract We have imaged the protoplanetary nebula CRL 618 in the CS(2-1) line at 98 GHz using the Owens Valley Radio Observatory millimeter interferometer with a synthesized beam of sun2."5. For the first time, we have resolved the molecular core of CRL 618: the gas at the systemic velocity of the nebula is distributed like a cross, concentrated along two perpendicular linear structures. We have also detected emission out to the ends of the observing bandpass, which is at ±170 km s-1. The high-velocity gas participates in a bipolar outflow, showing marked displacement with respect to the central source, with the redshifted gas generally to the west and the blueshifted gas to the east of the H II region. The spectrum of the CS line reveals a deep absorption feature that we have partially resolved. Publication: The Astrophysical Journal Pub Date: June 1995 DOI: 10.1086/175782 Bibcode: 1995ApJ...446..244H Keywords: ISM: JETS AND OUTFLOWS; ISM: KINEMATICS AND DYNAMICS; ISM: PLANETARY NEBULAE: INDIVIDUAL ALPHANUMERIC: CRL 618; RADIO LINES: ISM full text sources ADS | data products SIMBAD (2)

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