[ Previous | Next ]
ATEL # 2499; S.A. Trushkin, N.N. Nizhelskij (SAO RAS)
on 22 Mar 2010; 19:31 UT
Distributed as an Instant Email Notice (Transients)
Password Certification: Sergei Trushkin (firstname.lastname@example.org)
Subjects: Radio, Millimeter, X-ray, Gamma Ray, AGN, Transients, Variables
On 2-4 March 2010 we have carried out observations of the Galactic plane Fermi-LAT source J0109+6134 with the RATAN-600 radio telescope. This radio source GT0106+6133 had the flux densities of 345 +/-20, 415 +/- 15, 511 +/- 15, 483 +/- 20, and 445 +/-30 mJy at 2.15, 3.9, 7.7, 11.2 and 21.7 GHz respectively and the spectral index was equal to -0.13 in 7.7-21.7 GHz range. These high-frequency fluxes are notedly lower than these from Effelsberg 100-m telescope data (ATEL #2428), being measured almost month ago, while the low-frequency RATAN fluxes are very close to the Bonn and the WSRT data (ATEL #2460). Thus the radio source is probably variable on the scale of 20-30 days at least at frequencies higher 10 GHz.
The new compiled radio spectra of J0109+6134