H(C-12)O(+) outflow and a rotating H(C-13)O(+) disk around L1551 IRS-5

Details H(C-12)O(+) outflow and a rotating H(C-13)O(+) disk around L1551 IRS-5 H(C-12)O(+) outflow and a rotating H(C-13)O(+) disk around L1551 IRS-5

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.171..177l&link_type=abstract

(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640

Astronomy and Astrophysics

Astrophysics

Astronomical Spectroscopy, Gas Flow, Ion Sources, Pre-Main Sequence Stars, Protostars, Astronomical Models, Formyl Ions, Narrowband, Star Formation, Stellar Evolution

Scientific paper

Results are presented on high-velocity-resolution H(C-12)O(+) (J = 1-0) and H(C-13)O(+) (J = 1-0) observations toward L1551 carried out by the Metsahovi 13.7-m radio telescope. The observations revealed a bipolar H(C-12)O(+) outflow from the L1551 IRS-5 premain sequence star and a rotating H(C-13)O(+) disc around the star. In the disc area, the H(C-12)O(+) spectra show two distinct velocity components: a right-hand component, which agrees with the velocity of the H(C-13)O(+) disc, and a left-hand component, which appears to belong to the outflow and the dense lobe material. The results support those of hydromagnetic outflow models.

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