7500-9300 A spectroscopy of MWC 349A

Details 7500-9300 A spectroscopy of MWC 349A 7500-9300 A spectroscopy of MWC 349A

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...327..876h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 327, April 15, 1988, p. 876-893. NSF-supported research.

Astronomy and Astrophysics

Astronomy

47

Emission Spectra, Infrared Spectra, Line Spectra, Lyman Alpha Radiation, Stellar Luminosity, Stellar Spectra, Gravitational Fields, H I Regions, Late Stars, Radio Astronomy, Stellar Envelopes

Scientific paper

The authors present 7500 - 9300 Å spectra, at 30 km s-1 resolution, of the luminous emission-line star MWC 349A. At least 160 spectral lines are detected, including several strong Fe II lines excited by fluorescence with Lyα. The variety of line profiles and excitation requirements imply several distinct emission regions in the circumstellar envelope, ranging from high-density (≥ 1010 cm-3) and neutral to low-density (≤ 106 cm-3) and ionized. The dynamics inferred for these regions support the rotating disk plus bipolar wind model proposed for this source by Hamann and Simon in 1986.

Affiliated with

Also associated with

No associations

Rating

7500-9300 A spectroscopy of MWC 349A does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with 7500-9300 A spectroscopy of MWC 349A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 7500-9300 A spectroscopy of MWC 349A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-848062