Swift Follow up observation of the transient source Fermi J0641-0317
ATel #6100; M. Ajello (Clemson University), D. Kocevski (GSFC/NASA), R. Buehler (DESY/Zeuthen), J. Becerra (GSFC/NASA), R. Ojha (GSFC/NASA) on behalf of the Fermi Large Area Telescope Collaboration
on 25 Apr 2014; 19:05 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Marco Ajello (majello@clemson.edu)
Subjects: X-ray, Gamma Ray, >GeV, Request for Observations, Transient
On April 24, 2014 Swift carried out a 3 ks target of opportunity observation of the transient Fermi J0641-0317 (see ATel #6098). Only one bright source is detected by the Swift X-ray telescope (XRT) at RA, Dec = 06h 41m 51.5s, -03d 20' 49.2" (J2000) with a 90 % error radius of 4.0 arcsec. The source is spatially coincident with the bright flat-spectrum radio source PMN J0641-0320. The XRT source, well described by an absorbed power law with absorption consistent with the Galactic one, displays a hard spectrum with a photon index of 0.93 (+0.43/-0.39) and a 2-10 keV flux of 4.9 (+1.0/-0.5) 12-12 erg cm-2 s-1.
Follow up observations of Fermi J0641-0317 at longer wavelengths are encouraged.
We thank the Swift team and the Swift PI for promptly accepting and scheduling the ToO observation.
