Periodic radio emission from LS I +61 deg 303

Details Periodic radio emission from LS I +61 deg 303 Periodic radio emission from LS I +61 deg 303

Apr 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...255..210t&link_type=abstract

Astrophysical Journal, Part 1, vol. 255, Apr. 1, 1982, p. 210-216. Research supported by the Natural Sciences and Engineering R

Astronomy and Astrophysics

Astronomy

125

Binary Stars, Radio Bursts, Radio Stars, Stellar Radiation, Variable Stars, X Ray Sources, Gamma Ray Astronomy, Light Curve, Periodic Variations, Radiant Flux Density, Radio Emission, Radio Telescopes, Stellar Models

Scientific paper

The discovery of periodic radio emission from the highly variable radio star LS I + 61 deg 303 is reported. On the basis of an analysis of 144 flux density measurements (August 1977 to March 1981), a period of 26.52 + or - 0.04 days is derived. Comparing the radio light curves at 5.0 and 10.5 GHz rules out occultation as an explanation of the periodic variation. The implications of the radio emission are discussed in the context of a binary model, which also explains the X-ray and possible gamma-ray emission associated with the source.

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