SIMBAD references

1994A&AS..106...29G - Astron. Astrophys., Suppl. Ser., 106, 29-37 (1994/July-0)

Three-year monitoring of a sample of flat-spectrum radio sources at 327 MHz.


Abstract (from CDS):

Result. 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.

Abstract Copyright:

Journal keyword(s): active galactic nuclei - radio sources - low frequency variability

VizieR on-line data: <Available at CDS (J/A+AS/106/29): table1 table2>

Nomenclature: Table 1: [GGR94] HHMM+DDd N=46

CDS comments: Table 2 not in Simbad, except 3C sources

Simbad objects: 62

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