Possible protostar near HH 7-11

Journal Article · Tue Sep 01 04:00:00 EDT 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/165549· OSTI ID:5776535

Grossman, E N; Masson, C R; Sargent, A I; Scoville, N Z; Scott, S

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. 36 references.

• Research Organization: California Institute of Technology, Pasadena
• OSTI ID: 5776535
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 320; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BINARY STARS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
ELECTROMAGNETIC RADIATION
INFRARED RADIATION
MASS TRANSFER
NEBULAE
OXIDES
OXYGEN COMPOUNDS
PROTOSTARS
RADIATIONS
SPECTROPHOTOMETRY
STARS