Optical outburst and mm activity of 3C 345 observed by the GASP
Abstract
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.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- October 2009
- Bibcode:
- 2009ATel.2222....1L
- Keywords:
-
- Millimeter;
- Optical;
- AGN