A possible protostar near HH 7-11

Details A possible protostar near HH 7-11 A possible protostar near HH 7-11

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...320..356g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 320, Sept. 1, 1987, p. 356-363.

Astronomy and Astrophysics

Astrophysics

40

Binary Stars, Herbig-Haro Objects, Millimeter Waves, Pre-Main Sequence Stars, Protostars, Spectral Emission, Carbon Monoxide, Nebulae, Spectrum Analysis, Stellar Spectrophotometry

Scientific paper

Millimeter wavelength, aperture synthesis observations of the bipolar outflow region associated with Herbig-Haro objects HH 7-11 obtained at Owens Valley are presented. The circumstellar continuum emission, the circumstellar molecular-line emission, and the high-velocity CO emission from the blue-shifted lobe of the HH 7-11 bipolar outflow are analyzed. It is observed that the emission is resolved into a binary source; one source coincides with the embedded near-IR source SVS 13 and the companion to the southwest has been detected only at 98 and 110 GHz. It is suggested that, due to the lack of near-IR luminosity, the companion may be a true protostar and that the high-velocity molecular gas is distributed in an elongated, expanding, and highly inhomogeneous shell which surrounds a cavity containing the HH objects.

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