THE ALLEN TELESCOPE ARRAY Pi GHz SKY SURVEY. I. SURVEY DESCRIPTION AND STATIC CATALOG RESULTS FOR THE BOOTES FIELD
Journal article, 2010
The Pi GHz Sky Survey (PiGSS) is a key project of the Allen Telescope Array. PiGSS is a 3.1 GHz survey of radio continuum emission in the extragalactic sky with an emphasis on synoptic observations that measure the static and time-variable properties of the sky. During the 2.5 year campaign, PiGSS will twice observe similar to 250,000 radio sources in the 10,000 deg(2) region of the sky with b > 30 degrees to an rms sensitivity of similar to 1 mJy. Additionally, sub-regions of the sky will be observed multiple times to characterize variability on timescales of days to years. We present here observations of a 10 deg(2) region in the Bootes constellation overlapping the NOAO Deep Wide Field Survey field. The PiGSS image was constructed from 75 daily observations distributed over a 4 month period and has an rms flux density between 200 and 250 mu Jy. This represents a deeper image by a factor of 4-8 than we will achieve over the entire 10,000 deg(2). We provide flux densities, source sizes, and spectral indices for the 425 sources detected in the image. We identify similar to 100 new flat-spectrum radio sources; we project that when completed PiGSS will identify 10(4) flat-spectrum sources. We identify one source that is a possible transient radio source. This survey provides new limits on faint radio transients and variables with characteristic durations of months.
transient
stars
discovery
radio continuum: general
survey
neutron-stars
candidates
radio continuum:
afterglows
radio-sources
ray
galactic-center
peaked-spectrum
radio continuum: galaxies
surveys
1st
Author
G. C. Bower
University of California
S. Croft
University of California
G. Keating
University of California
D. Whysong
University of California
R. Ackermann
SETI Institute
S. Atkinson
SETI Institute
D. Backer
University of California
P. Backus
SETI Institute
B. Barott
Embry-Riddle Aeronautical University
A. Bauermeister
University of California
L. Blitz
University of California
D. Bock
University of California
T. Bradford
SETI Institute
C. Cheng
University of California
C. Cork
Minex Engineering
M. Davis
SETI Institute
D. DeBoer
Commonwealth Scientific and Industrial Research Organisation (CSIRO)
M. Dexter
University of California
J. Dreher
SETI Institute
G. Engargiola
University of California
E. Fields
University of California
M. Fleming
Minex Engineering
R. J. Forster
University of California
C. Gutierrez-Kraybill
University of California
G. R. Harp
SETI Institute
C. Heiles
University of California
T. Helfer
SETI Institute
C. Hull
University of California
J. Jordan
SETI Institute
S. Jorgensen
University of California
T. Kilsdonk
SETI Institute
C. Law
University of California
J. van Leeuwen
Netherlands Institute for Radio Astronomy (ASTRON)
J. Lugten
Lawrence Livermore National Laboratory
D. MacMahon
University of California
P. McMahon
Stanford University
O. Milgrome
University of California
T. Pierson
SETI Institute
K. Randall
SETI Institute
J. Ross
SETI Institute
S. Shostak
SETI Institute
A. Siemion
University of California
K. Smolek
SETI Institute
J. Tarter
SETI Institute
D. Thornton
University of California
L. Urry
University of California
A. Vitouchkine
Minex Engineering
Niklas Wadefalk
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
S. Weinreb
California Institute of Technology (Caltech)
J. Welch
University of California
D. Werthimer
University of California
P. K. G. Williams
University of California
M. Wright
University of California
Astrophysical Journal
0004-637X (ISSN) 1538-4357 (eISSN)
Vol. 725 2 1792-1804Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1088/0004-637x/725/2/1792