Monitoring of 87GBJ1929+0909 with RATAN-600 after ESE
ATel #9092; S. A. Trushkin, N. A. Nizhelskij, P. G.Tsybulev, A. Erkenov (SAO RAS, Russia)
on 28 May 2016; 15:08 UT
Credential Certification: Sergei Trushkin (satr@sao.ru)
Subjects: Radio, Millimeter, AGN, Blazar
During almost 100 days we have observed variable source 87GBJ1929+0909 just after the extreme scattering event (ESE) detected by Bannister et al. (ATel #8696) with ATCA.
We have measured the daily fluxes at 4.6, 8.2 and 11.2 GHz and average fluxes at 2.3 and 21.7 GHz from 16 Feb to 23 May 2016 with the RATAN-600 radio telescope.
This point source was recently detected with Planck mission(G045.48-04.24 in The Planck Catalogue of Compact Sources, PCCS1) with flux 0.4 Jy at 217 GHz.
The measured light curves were relatively stable (within 10-15%) at levels near 140, 150, 135, and 122 mJy at 2.3, 4.6, 8.2 and 11.2 GHz, giving almost a flat spectrum with spectral index -0.2, but the flux at 21.7 GHz was equal to 220 mJy, indicating the high-frequency spectral component
consistent with Planck data. The light curves are given
here.
Compiled radio spectra of 87GBJ1929+0909
