Ghosh, T. ; Gopal-Krishna, ; Rao, A. P. (1994) Three-year monitoring of a sample of flat-spectrum radio sources at 327 MHz Astronomy & Astrophysics Supplement Series, 106 . pp. 29-37. ISSN 0365-0138
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Official URL: http://cdsads.u-strasbg.fr/abs/1994A&AS..106...29G
Abstract
Results of a 3-year monitoring programme at 327 MHz with the Ooty Synthesis Radio Telescope are presented. The majority of the sample consists of BL Lac objects, high-optical polarization quasars (HPQ) and low-optical polarization quasars (LPQ). In addition, a few known variable sources, GHz-peaked spectrum sources and compact doubles were also added. Including an additional set of 36 control and calibrator sources, a total of 82 sources were observed at roughly 3-month intervals for about 3 years. We find 19 variable and 6 possibly-variable sources. However, the observed variability in the BL Lac-HPQ-LPQ subsamples does not seem to be influenced by their optical properties.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to EDP Sciences. |
| Keywords: | Active Galactic Nuclie; Radio Sources; Low Frequency Variability |
| ID Code: | 76536 |
| Deposited On: | 04 Jan 2012 05:01 |
| Last Modified: | 18 May 2016 20:09 |
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