Limits on the absolute magnitudes of faint northern dwarf novae

Details Limits on the absolute magnitudes of faint northern dwarf novae Limits on the absolute magnitudes of faint northern dwarf novae

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...266..225s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 266, no. 1, p. 225-231.

Astronomy and Astrophysics

Astrophysics

2

Dwarf Novae, Stellar Magnitude, Stellar Spectra, Interstellar Extinction, Main Sequence Stars, Northern Sky, Stellar Spectrophotometry

Scientific paper

We apply the spectral decomposition techniques introduced by Wade (1982) to spectrophotometric observations of a sample of faint northern dwarf novae in order to derive limits for the relative contributions of the primary and the secondary components. These limits, expressed as a function of the assumed spectral type of the cool star in the system, translate into limits for the absolute magnitude of the primary and of the whole system. In some cases it is possible to confine the possible range of the spectral type of the secondary star. We investigate the effects of interstellar reddening on the results which the spectral decomposition is based can be significantly modified by reddening, and we derive a corresponding correction factor as a function of the color excess EB-V.

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