|
Using Negative Detections to Estimate Source-Finder Reliability
P.
Serra A D,
R.
Jurek B and
L.
Flöer C
A
Netherlands Institute for Radio Astronomy (ASTRON), Postbus 2, 7990 AA Dwingeloo, The Netherlands
B
CSIRO Astronomy & Space Science, Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia
C
Argelander-Institut für Astronomie, Auf dem Hügel 71, 53121 Bonn, Germany
D
Corresponding author. Email: serra@astron.nl
Publications of the Astronomical Society of Australia
- http://dx.doi.org/10.1071/AS11065
Submitted: 29 October 2011 Accepted: 12 December 2011 Published online:
1
February
2012
|  |
|
|
Abstract
We describe a simple method to determine the reliability of source finders based on the detection of sources with both positive and negative total flux. Under the assumption that the noise is symmetric and that real sources have positive total flux, negative detections can be used to assign to each positive detection a probability of being real. We discuss this method in the context of upcoming, interferometric Hi surveys.
Keywords:
methods: data analysis
|
References
Dickinson, M.,
et al., 2004 , ApJL, 600, L99 | CrossRef | CAS | 
Irwin, J. O., 1937 , J. R. Stat. Soc., 100, 415 | CrossRef |
Jurek, R., 2011, ArXiv 1112.1561
Kim, M.,
et al., 2007 , ApJS, 169, 401 | CrossRef |
Koribalski, B. S. & Staveley-Smith, L., 2009, ASKAP Survey Science Proposal, available at http://www.atnf.csiro.au/research/WALLABY
Kovač, K., Oosterloo, T. A. and van der Hulst, J. M., 2009 , MNRAS, 400, 743 | CrossRef |
Meyer, M. J.,
et al., 2004 , MNRAS, 350, 1195 | CrossRef | CAS |
Popping, A., Westmeier, T., Jurek, R., Serra, P., Flöer, L., Meyer, M. J. & Koribalski, B. S., 2012, PASA Special Issue on Source Finding and Visualization, ArXiv 1201.3994
Saintonge, A., 2007 , AJ, 133, 2087
Serra, P., et al., 2011, ArXiv 1111.4241
van der Hulst, J. M., 2002 , ASPC, 276, 84 | CAS |
Verheijen, M., Oosterloo, T., Heald, G. & van Cappellen, W., 2009, in Proceedings of Panoramic Radio Astronomy: Wide-Field 1–2 GHz Research on Galaxy Evolution, ed. G. Heald & P. Serra (Groningen, The Netherlands: Proceedings of Science), PoS(PRA2009)010
Westmeier, T., Popping, A. & Serra, P., 2012, PASA, Special Issue on Source Finding and Visualization
Yan, H. and Windhorst, R. A., 2004 , ApJL, 612, L93 | CrossRef | CAS |
Zwaan, M. A.,
et al., 2004 , MNRAS, 350, 1210 | CrossRef | CAS |
|
|
 |
Subscriber Login |
 |
|
e-Alerts
Connect with us
