Optical Spectra of Four Objects Identified with Variable Radio Sources
Astrophysics
2009-11-07 v1
Abstract
We obtained optical spectra of four objects identified with variable radio sources. Three objects (0029+0554, 0400+0550, 2245+0500) were found to be quasars with redshifts of 1.314, 0.761, and 1.091. One object (2349+0534) has a continuum spectrum characteristic of BL Lac objects. We analyze spectra of the radio sources in the range 0.97-21.7 GHz for the epoch 1997 and in the range 3.9-11.1 GHz for the epoch 1990, as well as the pattern of variability of their flux densities on time scales of 1.5 and 7 years.
Cite
@article{arxiv.astro-ph/0303569,
title = {Optical Spectra of Four Objects Identified with Variable Radio Sources},
author = {V. Chavushyan and R. Mujica and A. G. Gorshkov and V. K. Konnikova and M. G. Mingaliev},
journal= {arXiv preprint arXiv:astro-ph/0303569},
year = {2009}
}
Comments
4 pages, PDF