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Title: 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 simultaneously conducted at 22 ( K band) and 43 GHz ( Q band) using the Korean VLBI Network (KVN) from 2009 to 2011. A total of 2045 sources are selected from the VLBA Calibrator Survey with an extrapolated flux density limit of 100 mJy at the 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.°5 in decl. We detected 513 sources simultaneously in the K and Q bands; ∼76% of them are flat-spectrum sources (−0.5 ≤ α ≤ 0.5). From the flux–flux relationship, we anticipated that most of the radiation of many of the sources comes from the compact components. The sources listed in the KVNCS therefore are strong candidates for high-frequency VLBI calibrators.

Authors:
; ; ; ;  [1]
  1. Korea Astronomy and Space science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon, 34055 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22661230
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal, Supplement Series; Journal Volume: 228; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CATALOGS; COSMIC RAY SOURCES; FLUX DENSITY; GALAXIES; GHZ RANGE; QUASARS; SKY

Citation Formats

Lee, Jeong Ae, Sohn, Bong Won, Jung, Taehyun, Byun, Do-Young, and Lee, Jee Won, E-mail: jalee@kasi.re.kr, E-mail: bwsohn@kasi.re.kr. Korean VLBI Network Calibrator Survey (KVNCS). 1. Source Catalog of KVN Single-dish Flux Density Measurement in the K and Q Bands. United States: N. p., 2017. Web. doi:10.3847/1538-4365/228/2/22.
Lee, Jeong Ae, Sohn, Bong Won, Jung, Taehyun, Byun, Do-Young, & Lee, Jee Won, E-mail: jalee@kasi.re.kr, E-mail: bwsohn@kasi.re.kr. Korean VLBI Network Calibrator Survey (KVNCS). 1. Source Catalog of KVN Single-dish Flux Density Measurement in the K and Q Bands. United States. doi:10.3847/1538-4365/228/2/22.
Lee, Jeong Ae, Sohn, Bong Won, Jung, Taehyun, Byun, Do-Young, and Lee, Jee Won, E-mail: jalee@kasi.re.kr, E-mail: bwsohn@kasi.re.kr. Wed . "Korean VLBI Network Calibrator Survey (KVNCS). 1. Source Catalog of KVN Single-dish Flux Density Measurement in the K and Q Bands". United States. doi:10.3847/1538-4365/228/2/22.
@article{osti_22661230,
title = {Korean VLBI Network Calibrator Survey (KVNCS). 1. Source Catalog of KVN Single-dish Flux Density Measurement in the K and Q Bands},
author = {Lee, Jeong Ae and Sohn, Bong Won and Jung, Taehyun and Byun, Do-Young and Lee, Jee Won, E-mail: jalee@kasi.re.kr, E-mail: bwsohn@kasi.re.kr},
abstractNote = {We present the catalog of the KVN Calibrator Survey (KVNCS). This first part of the KVNCS is a single-dish radio survey simultaneously conducted at 22 ( K band) and 43 GHz ( Q band) using the Korean VLBI Network (KVN) from 2009 to 2011. A total of 2045 sources are selected from the VLBA Calibrator Survey with an extrapolated flux density limit of 100 mJy at the 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.°5 in decl. We detected 513 sources simultaneously in the K and Q bands; ∼76% of them are flat-spectrum sources (−0.5 ≤ α ≤ 0.5). From the flux–flux relationship, we anticipated that most of the radiation of many of the sources comes from the compact components. The sources listed in the KVNCS therefore are strong candidates for high-frequency VLBI calibrators.},
doi = {10.3847/1538-4365/228/2/22},
journal = {Astrophysical Journal, Supplement Series},
number = 2,
volume = 228,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2017},
month = {Wed Feb 01 00:00:00 EST 2017}
}