A search for the spectroscopic binary companions of Polaris using IUE spectra

Details A search for the spectroscopic binary companions of Polaris using IUE spectra A search for the spectroscopic binary companions of Polaris using IUE spectra

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..428e&link_type=abstract

In NASA. Goddard Space Flight Center Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 428-431 (SEE N85-20961 11

Astronomy and Astrophysics

Astronomy

Binary Stars, Iue, Main Sequence Stars, Stellar Spectra, Supergiant Stars, Amplitudes, Astrometry, Cepheid Variables

Scientific paper

Polaris has a spectroscopic orbit from an extensive series of observations as well as more uncertain astrometric elements. Spectra exposed down to 3200 Å have previously been searched for light from a companion, presumably a hotter main sequence star, but none has been found. In this study IUE low dispersion spectra have been searched for any light from a companion by forming ratios with observations of stars with spectral types similar to Polaris. There is no sign of a companion as early as A7 V. Mass limits are discussed.

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