PKS 1329-049 revived: new gamma-ray activity observed by Fermi LAT

Details PKS 1329-049 revived: new gamma-ray activity observed by Fermi LAT PKS 1329-049 revived: new gamma-ray activity observed by Fermi LAT

Sep 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2837....1s&link_type=abstract

The Astronomer's Telegram, #2837

Astronomy and Astrophysics

Astronomy

Gamma Ray, >Gev, Request For Observations, Blazars, Quasars, Transients

Scientific paper

The Large Area Telescope (LAT), one of the two instruments aboard the Fermi Gamma-ray Space Telescope, has observed a sharply increasing gamma-ray flux from a source positionally consistent with the high-redshift blazar PKS 1329-049 (1FGL J1331.9-0506, Abdo et al. 2010, ApJS, 188, 405; z = 2.15, Thompson et al. 1990, PASP, 102, 1235). Preliminary analysis indicates that the source on September 06, 2010, was in a high state with a gamma-ray flux (E>100MeV) of (3.0 +/-0.5) x10^-6 photons cm^-2 s^-1 (all errors are statistical only), making it the brightest source in the extragalactic gamma-ray sky on that day.

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