期刊
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
卷 31, 期 -, 页码 -出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/pasa.2014.40
关键词
radio continuum: general; surveys; techniques: interferometric
资金
- U.S. National Science Foundation [AST-0457585, PHY-0835713, CAREER-0847753, AST-0908884]
- Australian Research Council (LIEF grants) [LE0775621, LE0882938]
- U.S. Air Force Office of Scientific Research [FA9550-0510247]
- Centre for All-sky Astrophysics (an Australian Research Council Centre of Excellence) [CE110001020]
- Smithsonian Astrophysical Observatory
- MIT School of Science
- Raman Research Institute
- Australian National University
- Victoria University of Wellington (New Zealand Ministry of Economic Development and an IBM Shared University Research Grant)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
- National Collaborative Research Infrastructure Strategy
- Education Investment Fund
- Australia India Strategic Research Fund
- Astronomy Australia Limited
- Western Australian State government
- [MED-E1799]
We present the results of an approximately 6 100 deg(2) 104-196 MHz radio sky survey performed with the Murchison Widefield Array during instrument commissioning between 2012 September and 2012 December: the MWACS. The data were taken as meridian drift scans with two different 32-antenna sub-arrays that were available during the commissioning period. The survey covers approximately 20.5 h< RA < 8.5 h, -58 degrees < Dec < -14 degrees over three frequency bands centred on 119, 150 and 180 MHz, with image resolutions of 6-3 arcmin. The catalogue has 3 arcmin angular resolution and a typical noise level of 40 mJy beam(-1), with reduced sensitivity near the field boundaries and bright sources. We describe the data reduction strategy, based upon mosaicked snapshots, flux density calibration, and source-finding method. We present a catalogue of flux density and spectral index measurements for 14 110 sources, extracted from the mosaic, 1 247 of which are sub-components of complexes of sources.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据