The photometric variability of solar-type stars. V - The standard stars 10 and 11 Leonis Minoris

Details The photometric variability of solar-type stars. V - The standard stars 10 and 11 Leonis Minoris The photometric variability of solar-type stars. V - The standard stars 10 and 11 Leonis Minoris

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98..338s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, March 1986, p. 338-341.

Astronomy and Astrophysics

Astronomy

9

Light Curve, Reference Stars, Stellar Activity, Stellar Rotation, Stellar Spectrophotometry, Variable Stars, Chromosphere, Stellar Magnitude

Scientific paper

Light curves in Strömgren b and y for the 1985 season are presented for the uvby standard stars 10 LMi (HD 82635) and 11 LMi (HD 82885). The period of 10 LMi is 40.4 days, with an amplitude of 0.012 magnitude in y. The period of 11 LMi is 18.0 days, with an amplitude of 0.033 magnitude in y. The mechanism of the variability is interpreted as rotational modulation due to active regions on the stars. Observations of 11 LMi as a standard suggest the star was only weakly variable or constant during the interval from 1972 to 1984.

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