Continued Optical Activity in PKS 2052-474

Details Continued Optical Activity in PKS 2052-474 Continued Optical Activity in PKS 2052-474

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2162....1b&link_type=abstract

The Astronomer's Telegram, #2162

Astronomy and Astrophysics

Astronomy

1

Optical, Agn

Scientific paper

Observations at the Yale/SMARTS 1.0m telescope at CTIO show that PKS 2052-474 continues its outburst (ATEL #2158, #2160). Preliminary analysis of time series data obtained August 15 UT 0-2 and 4:30-5:30 shows mean optical magnitudes of R=15.40 and B=16.54, and evidence for variability of up to 0.05 magnitudes on timescales < 1 hour. Conditions were non-photometric, and magnitudes were calibrated against USNO magnitudes of a bright star ~38' south of the source.

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