Optical follow-up of the high-redshift FSRQ 4C 01.02 after the Fermi LAT detected outburst
ATel #15220; R. Bachev, A. Strigachev (IA-NAO, BAS)
on 10 Feb 2022; 23:30 UT
Credential Certification: Rumen Bachev (bachevr@astro.bas.bg)
Subjects: Optical, Gamma Ray, Blazar, Quasar
Referred to by ATel #: 15590
Following the recent reports (ATel #15213) of enhanced gamma-ray activity of the high-redshift flat-spectrum radio quasar 4C 01.02 (PKS 0106+01), redshift z=2.1, we performed optical follow-up observations of this object. Using the 60-cm telescope of Belogradchik Observatory, Bulgaria, we obtained the following R-band magnitudes:
JD; R; err_R
2459620.25 (February 9.75 2022); 16.15; 0.05
2459621.25 (February 10.75 2022); 16.19; 0.05
For calibration, nearby stars from USNO B1.0 Catalog were used (stars 1 and 3 from the SMARTS chart, http://www.astro.yale.edu/smarts/glast/fc4C+01.02.php# )
These R-band magnitudes for 4C 01.02 are among the brightest, detected by SMARTS ( http://www.astro.yale.edu/smarts/glast/plots/0106+0119.jpg ). Optical outbursts typically coincide with detected gamma-ray outbursts (ATel #15213 and the references therein).
In addition, we found significant optical polarization for the second night of observations (linear polarization, unfiltered light):
JD; p%; err_p; EVPA; err_EVPA
2459621.25 (February 10.75 2022); 14.5; 1.7; 172; 5
All data are preliminary. Further observations are encouraged.
This research was partially supported by the Bulgarian National Science Fund of the Ministry of Education and Science under grants KP-06-H28/3 (2018), KP-06-H38/4 (2019) and KP-06-KITAJ/2 (2020).
