A sample of GHz-peaked spectrum sources selected at RATAN-600: spectral and variability properties

astro-ph.GA

/ Authors

K. V. Sokolovsky, Y. Y. Kovalev, Yu. A. Kovalev, N. A. Nizhelskiy, G. V. Zhekanis

/ Abstract

We describe a new sample of 226 GPS (GHz-Peaked Spectrum) source candidates selected using simultaneous 1-22 GHz multi-frequency observations with the RATAN-600 radio telescope. Sixty objects in our sample are identified as GPS source candidates for the first time. The candidates were selected on the basis of their broad-band radio spectra only. We discuss the spectral and variability properties of selected objects of different optical classes.