Tanaka, Y. T.Y. T.TanakaDonato, D.D.DonatoCutini, SaraSaraCutiniGasparrini, DarioDarioGasparrini2020-09-172020-09-172009-10-01https://hdl.handle.net/20.500.13025/1297The Astronomer's Telegram, #2253Following 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).OpticalX-rayAGNhttp://adsabs.harvard.edu/abs/2009ATel.2253....1T2009ATel.2253....1T