Korean VLBI Network Calibrator Survey (KVNCS): 1. Source Catalog Of KVN Single Dish Flux Density Measurement In The K And Q Bands

Abstract

We present the catalog of the KVN Calibrator Survey (KVNCS). This first part of the KVNCS is a single dish radio survey conducted at 22 (K band) and 43 GHz (Q band) simultaneously using the Korean VLBI Network (KVN) from 2009 to 2011. A total 2045 sources selected from the VLBA Calibrator Survey (VCS) with an extrapolated flux density limit of 100 mJy at K band. The KVNCS contains 1533 sources in the K band with a flux density limit of 70 mJy and 553 sources in the Q band with a flux density limit of 120 mJy; it covers the whole sky down to $-32{.}^{\circ }5$ in declination. Five hundred thirteen sources were detected in the K and Q bands, simultaneously; $\sim 76\%$ of them are flat-spectrum sources ($-0.5\le \alpha \le 0.5$). From the flux--flux relationship, we anticipated that the most of the radiation of many of the sources comes from the compact components. Therefore, the sources listed in the KVNCS are strong candidates for high frequency VLBI calibrators.

Aaccepted for publication in ApJS

References in corpus (5)

• The Sixth VLBA Calibrator Survey: VCS6
• The Fifth VLBA Calibrator Survey: VCS5
• VERA 22 GHz fringe search survey
• Astrometrically Registered Simultaneous Observations of the 22 GHz H${}_2$O and the 43GHz SiO masers towards R Leonis Minoris using KVN and Source/Frequency Phase Referencing
• Flux density measurements of a complete sample of faint blazars

Cited by in corpus (7)

• The Radio Fundamental Catalogue. I. Astrometry
• Radio-loud Quasars above Redshift 4: VLBI Imaging of an Extended Sample
• Overview of the Observing System and Initial Scientific Accomplishments of the East Asian VLBI Network (EAVN)
• An International Survey of Front-End Receivers and Observing Performance of Telescopes for Radio Astronomy
• Magnetic Field Strengths of the Synchrotron Self-Absorption Region in the Jet of CTA 102 During Radio Flares
• A compact symmetric radio source born at one-tenth the current age of the Universe
• X-ray Emission of the $\gamma$-ray Loud Young Radio Galaxy NGC 3894