H I spectrum of the symbiotic nova HM SGE

Details H I spectrum of the symbiotic nova HM SGE H I spectrum of the symbiotic nova HM SGE

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aj.....99.1926l&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 99, June 1990, p. 1926-1929. Research supported by NSERC.

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1

H Lines, Novae, Stellar Spectra, Symbiotic Stars, Electron Density (Concentration), Emission Spectra, Quasars, Stellar Envelopes, Very Large Array (Vla), X Ray Spectra

Scientific paper

VLA observations are used to measure the H I spectrum of the symbiotic nova HM Sge. It is found that the H I column density to HM Sge is 4 x 10 to the 20th/sq cm and that the upper limit to the mass of circumstellar H I is 0.008 D-squared solar mass, with D equal to the distance to HM Sge in kparsecs. In addition, the spectrum of the quasar O V + 168 is used to show that the total Galactic H I column density in the direction of HM Sge is 9.5 x 10 to the 20th/sq cm. The implications of these results on the interpretation of other observations of HM Sge are discussed.

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