145MHz source measurements by PAPER

DOI

We present observations from the Precision Array for Probing the Epoch of Reionization (PAPER) in South Africa, observed in 2010 May and September. Using two nights of drift scanning with PAPER's 60{deg} FWHM beam we have made a map covering the entire sky below +10{deg} declination with an effective center frequency of 145MHz, a 70MHz bandwidth, and a resolution of 26'. A 4800deg^2^ region of this large map with the lowest Galactic emission reaches an rms of 0.7Jy. We establish an absolute flux scale using sources from the 160MHz Culgoora catalog (Cat. VIII/35). Using the 408MHz Molonglo Reference Catalog (MRC, Cat. VIII/16) as a finding survey, we identify counterparts to 480 sources in our maps and compare our fluxes to the MRC and to 332 sources in the Culgoora catalog. For both catalogs, the ratio of PAPER to catalog flux averages to 1, with a standard deviation of 50%. This measured variation is consistent with comparisons between independent catalogs observed at different bands. The PAPER data represent new 145MHz flux measurements for a large number of sources in the band expected to encompass cosmic reionization and represents a significant step toward establishing a model for removing foregrounds to the reionization signal.

Cone search capability for table J/ApJ/734/L34/table2 (PAPER (Precision Array for Probing the Epoch of Reionization) fluxes for 480 MRC sources and matching Culgoora fluxes)

Identifier
DOI http://doi.org/10.26093/cds/vizier.17349034
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/734/L34
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/734/L34
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/734/L34
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/734/L34
Provenance
Creator Jacobs D.C.; Aguirre J.E.; Parsons A.R.; Pober J.C.; Bradley R.F.,Carilli C.L.; Gugliucci N.E.; Manley J.R.; van der Merwe C.; Moore D.F.,Parashare C.R.
Publisher CDS
Publication Year 2013
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Natural Sciences; Observational Astronomy; Physics