Comments on using absolute spectrophotometry of Wolf-Rayet stars

Details Comments on using absolute spectrophotometry of Wolf-Rayet stars Comments on using absolute spectrophotometry of Wolf-Rayet stars

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...300..374u&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 300, Jan. 1, 1986, p. 374-378.

Astronomy and Astrophysics

Astrophysics

5

Interstellar Extinction, Stellar Spectrophotometry, Wolf-Rayet Stars, Line Spectra, Stellar Atmospheres, Stellar Temperature, Ultraviolet Spectra

Scientific paper

Garmany et al. (1984) have conducted a study involving spectrophotometric scans of 13 Wolf-Rayet stars. They have found that the application of a 'standard' reddening law to the observed data gives spurious results in many cases. They concluded also that previous attempts to determine the intrinsic continua and the effective temperatures of Wolf-Rayet stars are inadequate. In the present study the conclusions of Garmany et al. are evaluated. According to this evaluation, it has not been demonstrated by Garmany et al., beyond a reasonble doubt, that the interstellar extinction law varies greatly from Wolf-Rayet star to Wolf-Rayet star. The procedure followed by Garmany et al. to find the apparent shape of the ultraviolet continuum of a Wolf-Rayet star is unsatisfactory for a number of reasons.

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