The L 1551 IRS 5 CO bipolar outflow - Acceleration and origin

Details The L 1551 IRS 5 CO bipolar outflow - Acceleration and origin The L 1551 IRS 5 CO bipolar outflow - Acceleration and origin

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...213..310f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 213, no. 1-2, April 1989, p. 310-322. Research supported by the Naturvetenskap

Astronomy and Astrophysics

Astronomy

32

Herbig-Haro Objects, Interstellar Gas, Molecular Clouds, Stellar Mass Accretion, Carbon Monoxide, Cosmic Dust, Near Infrared Radiation, Sky Surveys (Astronomy)

Scientific paper

The IRS 5 stellar object and its associated bipolar gas outflow in the molecular cloud L 1551 were observed in the 2.6 mm J = 1-0 (C-12)O and (C-13)O lines, in order to investigate the velocity field and its relation to the Herbig-Haro objects. It was found that the structure of the high-velocity gas is indicative of a shell, in agreement with the results of Snell and Schloerb (1985) and Moriarty-Schieven et al. (1987). A study of the energetics within the blue-shifted outflow yielded an energy sufficient to explain the high FIR luminosity reported by Edwards et al. (1986). The velocity structure obtained for the outflow very close to IRS 5 is consistent with a large rotating gas disk such as that proposed by Kaifu et al. (1984).

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