Non-anomalous diffuse interstellar absorption features in Rho Leonis

Details Non-anomalous diffuse interstellar absorption features in Rho Leonis Non-anomalous diffuse interstellar absorption features in Rho Leonis

Dec 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.181..769b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 181, Dec. 1977, p. 769-776. Research supported by the Science Research

Astronomy and Astrophysics

Astronomy

15

Absorption Spectra, B Stars, Interstellar Extinction, Stellar Spectra, Supergiant Stars, Oao 3, Spectral Line Width, Stellar Spectrophotometry, Ubv Spectra, Ultraviolet Spectra

Scientific paper

Photographic spectroscopic observations are presented of Rho Leo (HD 91316), a class B1 supergiant at high galactic latitude which shows little reddening. The interstellar diffuse features at 4430, 5797, and 6283 A are not detected. There is an indication in the spectra that 5780-A might be present, with a strength consistent with the amount of reddening. Previous reports of anomalously strong 4430-A are not confirmed. These were based on low-resolution spectroscopy, and the explanation is that the appearance of a wide feature is produced by a combination of several weak atomic absorption lines in the spectrum of the star itself.

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