Rapid optical variation of the semiregular variable R Crt

Details Rapid optical variation of the semiregular variable R Crt Rapid optical variation of the semiregular variable R Crt

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aj.....87.1783l&link_type=abstract

Astronomical Journal, vol. 87, Dec. 1982, p. 1783-1790. Research supported by the Finaciadora de Estudos e Projectos and Consel

Astronomy and Astrophysics

Astronomy

4

Light Curve, Periodic Variations, Semiregular Variable Stars, Stellar Spectra, Visible Spectrum, Line Spectra, Stellar Color, Stellar Magnitude, Water Masers

Scientific paper

The light curves of the semiregular variable R Crt in the optical regions of the spectrum covered by the B, V, and DDO filters, are presented. The DDO magnitudes and colors showed a short-period variation of less than one hour. The magnitudes measured with the wider V and R filters have not showed significant variations, indicating that these are produced by spectral features measured by the DDO filters. A short-period radio variation in the same time scale had also been detected before in the 22-GHz H2O line.

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