Velocity-resolved infrared spectroscopy of MWC 349

Details Velocity-resolved infrared spectroscopy of MWC 349 Velocity-resolved infrared spectroscopy of MWC 349

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...311..909h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 311, Dec. 15, 1986, p. 909-920.

Astronomy and Astrophysics

Astronomy

78

Infrared Sources (Astronomy), Infrared Spectra, Spectral Resolution, Stellar Envelopes, Stellar Spectrophotometry, Emission Spectra, Gas Temperature, Line Spectra, Photoionization

Scientific paper

New spectroscopic observations of MWC 349 in the 2 - 2.5 μm and 4 μm spectral regions are presented. The spectral lines detected indicate the presence of both hot photoionized gas and cooler gas that must be predominantly neutral. The spectral line profiles show clearly that they arise in a rotating medium. A model is discussed in which the neutral gas is contained in a circumstellar disk, and the disk is also the source for the outflow of ionized gas.

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