[ Previous | Next | ADS ]

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

Referred to by ATel #: 6046

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