THE ALLEN TELESCOPE ARRAY Pi GHz SKY SURVEY. I. SURVEY DESCRIPTION AND STATIC CATALOG RESULTS FOR THE BOOTES FIELD
Artikel i vetenskaplig tidskrift, 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.

discovery

radio continuum: general

ray

transient

afterglows

1st

survey

galactic-center

peaked-spectrum

radio-sources

candidates

surveys

neutron-stars

radio continuum:

radio continuum: galaxies

stars

Författare

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

Australia Telescope National Facility

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, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

S. Weinreb

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 1792-1804

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1088/0004-637x/725/2/1792