Other
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.222..121g&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 222, Sept. 1, 1986, p. 121-141.
Other
7
B Stars, Emission Spectra, Infrared Spectra, Stellar Spectrophotometry, Ultraviolet Spectra, Balmer Series, Near Infrared Radiation, Paschen Series, Stellar Envelopes, Stellar Models
Scientific paper
Spectrophotometric observations of 26 Be stars are reported and analysed in the wavelength range λ3200 to λ8000 Å. Two observational features readily noted in these stars are: (1) a Balmer discontinuity smaller than that exhibited by normal B-type stars of similar spectral type; and (2) an excess flux in the near-infrared region. A simple optically thin model is assumed which describes the small Balmer jump as due to free-bound emission in the Balmer continuum arising in a circumstellar envelope. The same model parameters also reproduce the near-infrared excess when Paschen free-free and Paschen free-bound emissions are invoked. The volume emission measures for the circumstellar region are calculated. It is found that the near-ultraviolet and the near-infrared volume emission measures are loosely correlated to each other.
No associations
LandOfFree
Ultraviolet and infrared excess emission in Be stars 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 Ultraviolet and infrared excess emission in Be stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultraviolet and infrared excess emission in Be stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1296465