The molecular outflow very near L1551 IRS5

Details The molecular outflow very near L1551 IRS5 The molecular outflow very near L1551 IRS5

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...268..245f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 268, no. 1, p. 245-248.

Astronomy and Astrophysics

Astrophysics

11

Molecular Clouds, Stellar Envelopes, Stellar Mass Ejection, Stellar Spectra, Electron Transitions, Interstellar Matter, Line Spectra, Radial Velocity

Scientific paper

Observations of the molecular transitions CO (J=10), (C-13)O (J=1-0) and HCO(+) (J=1-0) towards the driving source of the bipolar molecular outflow in L1551, are presented. They show that outflowing gas is present within 2500 AU of the driving source, L1551 IRS5, and that molecular gas dense enough to excite HCO(+) is present. The mass loss rate close to IRS5 is found to be within an order of magnitude of the value determined earlier from global properties of the outflow. This implies that the average mass loss rate has not changed significantly during the dynamical life time of the outflow.

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