Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2253....1t&link_type=abstract
The Astronomer's Telegram, #2253
Astronomy and Astrophysics
Astronomy
Optical, X-Ray, Agn
Scientific paper
Following the Fermi-LAT detection of a GeV flare from the z=1.038 blazar 4C+14.23 on Oct 13th (ATEL #2243), two 4 ksec Swift observations were obtained -- on Oct 16th (XRT in WT mode) and 18th (XRT in PC mode). These observations confirm that the blazar has brightened in the X-ray and optical bands following the GeV flare. The blazar is well detected in each XRT observation. Combining the 2 XRT exposures, the data are well fit by a power law with a photon index, Gamma=1.51 +/- 0.35 and an average 0.3-10 keV flux = 1.17 (+0.20/-0.24)e-12 erg/cm2/s (unabsorbed assuming Galactic NH = 7.6e20 cm-2).
Cheung Charlotte
Cutini Sara
Donato Davide
Gasparrini Dario
Tanaka Yasuyuki T.
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