The continuous spectrum of HM Sagittae

Details The continuous spectrum of HM Sagittae The continuous spectrum of HM Sagittae

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978sval....4...48a&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 4, Feb. 1978, p. 91-94.) Soviet Astronomy Letters, vol. 4, Jan.-Feb. 1978, p. 48-50. Tr

Astronomy and Astrophysics

Astronomy

1

Continuous Spectra, Hot Stars, Stellar Spectra, Forbidden Bands, Spectral Energy Distribution

Scientific paper

The continuum of HM Sge in the 3600-7000-A range has been examined on spectrograms of 160-A dispersion at H-gamma, taken in December 1976 with an objective prism on the 70/100/210-cm Maksutov telescope of the Abastumani Astrophysical Observatory. The energy distribution corrected for interstellar absorption is anomalous and cannot be attributed to any single source. A large emission Balmer jump is present. A model for the HM Sge system is proposed, with a dense nebula (electron density at least about 1 million per cu cm) surrounding a hot star. At a wavelength of approximately 5000 A the intensity ratio of the stellar and nebular continua is 2.5:1.

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