NIR observations of S5 0716+71 from MIRO
ATel #3704; Sunil Chandra, KS Baliyan, B Mathew (Physical Research Laboratory, Ahmedabad)
on 24 Oct 2011; 07:18 UT
Credential Certification: Kiran S Baliyan (baliyan@prl.res.in)
Subjects: Infra-Red, AGN, Blazar
Referred to by ATel #: 3717
Blazar S5 0716+714 (PKS 0716+71) is highly variable at short and long term timescales in all energy regimes. Recently (ATel # 3700), it is reported to be in flaring state in optical and gamma-rays by Blinov et al (2011). Source is shown to have brightened by one magnitude during three nights with R~ 12.5 on 2011.10.21UT23.
Following ATel#3700, we observed S5 0716+71 in J and H near IR bands with NICS (1kx1k) mounted on the 1.2m telescope of MIRO (Mt Abu InfraRed Observatory) operated by the Physical Research Laboratory, Ahmedabad. Observations were made beginning 2011.10.22UT22:30 Hrs. Preliminary analysis of the data shows the source to have J=10.88(+/-0.06) and H=10.06(+/-0.04) magnitudes. It shows that source is still in fairly bright phase. In 2003-04, S5 0716+71 had an outburst reaching J=10.30 & H=9.48 levels (Baliyan et al 2005, BASI 33, 181).
Monitoring at other frequencies is encouraged.
