Milliarcsec-scale polarization observations of the gravitational lens B1422+231

A. R. Patnaik; A. J. Kemball; R. W. Porcas; M. A. Garret

doi:10.1046/j.1365-8711.1999.02813.x

Milliarcsec-scale polarization observations of the gravitational lens B1422+231

A. R. Patnaik, A. J. Kemball, R. W. Porcas, M. A. Garret

Research output: Contribution to journal › Article › peer-review

Abstract

We present polarization observations of the gravitational lens system B1422+231 made at 8.4 GHz using the VLBA and the 100-m telescope at Effelsberg. All four images of the quasar show structure on the milliarcsec scale. The three bright images show tangential stretching as expected from lens models. Some basic properties of gravitational lensing are exhibited by this system. The surface brightness of images A and B are the same and the parity reversal expected in image B is revealed, for the first time, by polarization observations. There is a large differential Faraday rotation between images A and B.

Original language	English (US)
Pages (from-to)	L1-L5
Journal	Monthly Notices of the Royal Astronomical Society
Volume	307
Issue number	1
DOIs	https://doi.org/10.1046/j.1365-8711.1999.02813.x
State	Published - Jul 21 1999
Externally published	Yes

Keywords

Cosmology: observations
Gravitational lensing
Polarization

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Online availability

10.1046/j.1365-8711.1999.02813.x

Library availability

Discover UIUC Full Text

Cite this

@article{a48784777a594934a97f1fae266a44cc,

title = "Milliarcsec-scale polarization observations of the gravitational lens B1422+231",

abstract = "We present polarization observations of the gravitational lens system B1422+231 made at 8.4 GHz using the VLBA and the 100-m telescope at Effelsberg. All four images of the quasar show structure on the milliarcsec scale. The three bright images show tangential stretching as expected from lens models. Some basic properties of gravitational lensing are exhibited by this system. The surface brightness of images A and B are the same and the parity reversal expected in image B is revealed, for the first time, by polarization observations. There is a large differential Faraday rotation between images A and B.",

keywords = "Cosmology: observations, Gravitational lensing, Polarization",

author = "Patnaik, {A. R.} and Kemball, {A. J.} and Porcas, {R. W.} and Garret, {M. A.}",

year = "1999",

month = jul,

day = "21",

doi = "10.1046/j.1365-8711.1999.02813.x",

language = "English (US)",

volume = "307",

pages = "L1--L5",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "1",

}

TY - JOUR

T1 - Milliarcsec-scale polarization observations of the gravitational lens B1422+231

AU - Patnaik, A. R.

AU - Kemball, A. J.

AU - Porcas, R. W.

AU - Garret, M. A.

PY - 1999/7/21

Y1 - 1999/7/21

N2 - We present polarization observations of the gravitational lens system B1422+231 made at 8.4 GHz using the VLBA and the 100-m telescope at Effelsberg. All four images of the quasar show structure on the milliarcsec scale. The three bright images show tangential stretching as expected from lens models. Some basic properties of gravitational lensing are exhibited by this system. The surface brightness of images A and B are the same and the parity reversal expected in image B is revealed, for the first time, by polarization observations. There is a large differential Faraday rotation between images A and B.

AB - We present polarization observations of the gravitational lens system B1422+231 made at 8.4 GHz using the VLBA and the 100-m telescope at Effelsberg. All four images of the quasar show structure on the milliarcsec scale. The three bright images show tangential stretching as expected from lens models. Some basic properties of gravitational lensing are exhibited by this system. The surface brightness of images A and B are the same and the parity reversal expected in image B is revealed, for the first time, by polarization observations. There is a large differential Faraday rotation between images A and B.

KW - Cosmology: observations

KW - Gravitational lensing

KW - Polarization

UR - http://www.scopus.com/inward/record.url?scp=0001781332&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001781332&partnerID=8YFLogxK

U2 - 10.1046/j.1365-8711.1999.02813.x

DO - 10.1046/j.1365-8711.1999.02813.x

M3 - Article

AN - SCOPUS:0001781332

SN - 0035-8711

VL - 307

SP - L1-L5

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Milliarcsec-scale polarization observations of the gravitational lens B1422+231

Abstract

Keywords

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this