Increasing fluxes of S5 1044+71 measured with RATAN-600 radio telescope
ATel #5869; Trushkin S. A., Mingaliev M. G., Sotnikova Yu. V., Erkenov A. K., Udovitskij R. Yu., Mufakharov T. V.
on 10 Feb 2014; 15:23 UT
Credential Certification: Sergei Trushkin (satr@sao.ru)
Subjects: Radio, Millimeter, Sub-Millimeter, Infra-Red, Gamma Ray, AGN, Blazar, Quasar
We report about the growing fluxes of the quasar S5 1044+71, identified with the FERMI source 2FGL J1048.3+714, since detection of the high state in the rest of January 2014 (ATEL #5792).
We continue measurements and again detect the increase of the flux densities at frequencies 8.2-21.7 GHz in February. Measured flux densities (with errors) with the RATAN-600 radio telescope at frequencies 4.8-21.7 GHz are given the the table:
Flux density (Jy) at frequency (GHz)
MJD DATE 4.85 err 8.2 err 11.2 err 21.7 Err
----------------------------------------------------------
56690.467 02/02/14 2.45 0.13 3.22 0.23 3.30 0.24 3.67 0.37
56692.462 04/02/14 2.45 0.13 3.25 0.24 3.29 0.23 3.51 0.35
56693.459 05/02/14 2.54 0.13 3.26 0.24 3.33 0.23 3.73 0.37
56694.456 06/02/14 2.60 0.14 3.42 0.25 3.50 0.25 4.15 0.42
56695.454 07/02/14 2.50 0.14 3.42 0.25 3.51 0.25 4.15 0.42
56696.451 08/02/14 2.58 0.14 3.50 0.26 3.55 0.25 4.04 0.41
56697.448 09/02/14 2.69 0.14 3.55 0.26 3.72 0.26 4.08 0.41
The former flat spectrum evolved to inverted spectra with spectral index equal to +0.5.
Updated spectra with the WMAP and PLANCK fluxes points:
http://www.sao.ru/hq/lran/gifs/S5_1044+71.png