2015MNRAS.450.4161P

Query : 2015MNRAS.450.4161P

2015MNRAS.450.4161P - Mon. Not. R. Astron. Soc., 450, 4161-4173 (2015/July-2)

Polarization alignments of quasars from the JVAS/CLASS 8.4-GHz surveys.

PELGRIMS V. and HUTSEMEKERS D.

Abstract (from CDS):

We test the hypothesis that the polarization vectors of flat-spectrum radio sources (FSRSs) from the JVAS/CLASS 8.4-GHz surveys are randomly oriented in the sky. A sample with robust polarization measurements is made with 4155 objects. Redshift information is known for 1531 of them. We performed two statistical analyses: one in two dimensions and the other in three dimensions when distance is available. We find significant large-scale alignments of polarization vectors for samples containing only quasars among the varieties of FSRS. While these correlations prove difficult to explain either by a physical effect or by biases in the data set, that the quasars that have significantly aligned polarization vectors are found in regions of the sky where optical polarization alignments were previously found is striking.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): polarization - galaxies: active - quasars: general - large-scale structure of Universe - radio continuum: general

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ELAIS N1 reg 16 10 01 +54 30.6           ~ 489 0

Query : 2015MNRAS.450.4161P

Basic data :
ELAIS N1 -- Region defined in the Sky
Other object types: otypes_help 		reg (ELAIS)
ICRS coord. (ep=J2000) : 		16 10 01.0 +54 30 36 [ ] E 2000MNRAS.316..749O
FK4 coord. (ep=B1950 eq=1950) : 		16 08 50.4 +54 38 21 [ ]
Gal coord. (ep=J2000) : 		084.2827 +44.8975 [ ]
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Identifiers (1) :
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ELAIS N1

References (489 between 1850 and 2026) (Total 489)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Herschel : 7    ISO : 59   

   

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