Optical outburst and mm activity of 3C 345 observed by the GASP

Details Optical outburst and mm activity of 3C 345 observed by the GASP Optical outburst and mm activity of 3C 345 observed by the GASP

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2222....1l&link_type=abstract

The Astronomer's Telegram, #2222

Astronomy and Astrophysics

Astronomy

4

Millimeter, Optical, Agn

Scientific paper

The GLAST-AGILE Support Program (GASP) of the Whole Earth Blazar Telescope (WEBT) reports on the recent observation of a strong optical brightening of the blazar 3C 345. This is one of the 28 sources for which the GASP performs a long-term, multiwavelength monitoring. After a faint state (R ~ 17) observed in mid 2009, the brightness started to increase in July, and in August a sharp flare led to a peak of R = 16.09 +/- 0.01 on August 20; this was followed by a fast dimming and subsequent steep rebrightening up to R = 15.75 +/- 0.01 on September 20.

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