Variations in the optical continuum of OJ 287

Details Variations in the optical continuum of OJ 287 Variations in the optical continuum of OJ 287

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.211..621m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 211, Dec. 1, 1984, p. 621-627.

Astronomy and Astrophysics

Astronomy

20

Bl Lacertae Objects, Continuous Spectra, Radiant Flux Density, Spectral Energy Distribution, Visible Spectrum, Astronomical Spectroscopy, Cosmic Dust, Light Curve, Periodic Variations, Power Spectra, Ubv Spectra

Scientific paper

Optical differential photometry of OJ 287 shows rapid variability of this object, amounting to 0.05 mag in an hour in the B band. There are no signs of periodicity from the corresponding power spectrum. The continua calculated from UBVRI photometry are all very well fitted by power laws, indicating a very small dust content. A correlation is found between flux and spectral index; the spectrum steepens as the luminosity decreases.

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