Light curves for two optically variable quasars

Details Light curves for two optically variable quasars Light curves for two optically variable quasars

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....99...63k&link_type=abstract

Astronomy and Astrophysics, vol. 99, no. 1, June 1981, p. 63-65.

Astronomy and Astrophysics

Astrophysics

4

Astronomical Photometry, Light Curve, Periodic Variations, Quasars, Brightness, Schmidt Telescopes, Ubv Spectra

Scientific paper

UBV-magnitudes have been measured for the quasars B2 1340+29 and B2 1351+26 on Schmidt plates from Kvistaberg and Tautenburg. Both objects show variations of more than one magnitude in B. 1340+29 shows a dominant trend of decreasing brightness amounting to nearly 3 mag from 1940 to 1978, as well as more rapid fluctuations. There is a marginal evidence for a brightness drop of 0.5 mag in 23 min for this object.

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