NIR and Radio follow-up of PKS0402-362
ATel #3660; Roberto Nesci (University La Sapienza, Italy); Roopesh Ojha (NASA Goddard Space Flight Center, USA); Matthias Kadler (University of Wurzburg, Germany); Tapio Pursimo (Nordic Optical Telescope, Santa Cruz de La Palma, Spain); Gino Tosti (Perugia University, Italy); Michael Dutka (Catholic University, USA); J. Blanchard (Department of Physics, University of Tasmania, Hobart, Tasmania, 7001, Australia); J. Lovell (School of Mathematics & Physics, Private Bag 37, University of Tasmania, Hobart, TAS, 7001, Australia).
on 25 Sep 2011; 04:43 UT
Credential Certification: Roberto Nesci (roberto.nesci@uniroma1.it)
Subjects: Radio, Infra-Red, AGN, Blazar
The blazar PKS 0402-362 (RA: 04h02m02.5994s, Dec: -36d13m11.947s) is
being monitored by the TANAMI project
(http://pulsar.sternwarte.uni-erlangen.de/tanami/) in NIR with the REM
telescope (http://www.rem.inaf.it) since February 2011. A Gamma-ray
flare has been detected by Fermi-LAT (ATel #3655) on 2011-09-22 (JD 55827):
Swift follow-up is reported in ATel #3659.
We recorded J=15.60 (+/-0.17) on 2011-09-21, UT 09:18 (MJD 55825.38) pratically simultaneous with the Gamma-ray flare, using a
sequence of 4 comparison stars taken from the 2MASS for differential
photometry. In the 2MASS catalogue the source is reported at J=16.20.
During our monitoring PKS 0402-362 was generally below the detection threshold.
We detected the source also on 2011-04-11 (MJD 55662.06) at J=15.14
(+/-0.16), and on 2011-08-10 (MJD 55783) at J=15.62 (+/-0.20): in
neither case Gamma-ray flares were reported.
Preliminary radio observations from Ceduna telescope suggests that the radio flux has been increasing from about 1.8 Jy to 2.44 Jy on 2011-09-15.
Further multiwavelength observations are encouraged.
