Optical and infrared polarimetry and photometry of blazars

A.R.G. Mead; K.R. Ballard; P.W.J.L. Brand; J. Hough; C. Brindle; J. Bailey

Optical and infrared polarimetry and photometry of blazars

A.R.G. Mead, K.R. Ballard, P.W.J.L. Brand, J. Hough, C. Brindle, J. Bailey

Centre for Astrophysics Research (CAR)

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Abstract

We have carried out a polarization study of 44 blazars and candidate blazars at optical and near-infrared frequencies covering the period 1986 August to 1988 February. The data show flux and polarization properties changing on internight timescales, and commonly exhibit frequency dependence of a spectral index, polarization and polarization position angle. The observations of the quasar 1253 - 055(3C279) showed a U-band polarization of 45.5 ± 0.9%, the highest ever seen in a blazar. The interpretation of the data is the subject of a further paper (Ballard et al., 1989).

Original language	English
Pages (from-to)	183-204
Journal	Astronomy and Astrophysics: Supplement Series
Volume	83
Issue number	1
Publication status	Published - 1990

Keywords

BL Lacertae objects
quasars
visible spectrum

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title = "Optical and infrared polarimetry and photometry of blazars",

abstract = "We have carried out a polarization study of 44 blazars and candidate blazars at optical and near-infrared frequencies covering the period 1986 August to 1988 February. The data show flux and polarization properties changing on internight timescales, and commonly exhibit frequency dependence of a spectral index, polarization and polarization position angle. The observations of the quasar 1253 - 055(3C279) showed a U-band polarization of 45.5 ± 0.9\%, the highest ever seen in a blazar. The interpretation of the data is the subject of a further paper (Ballard et al., 1989).",

keywords = "BL Lacertae objects, quasars, visible spectrum",

author = "A.R.G. Mead and K.R. Ballard and P.W.J.L. Brand and J. Hough and C. Brindle and J. Bailey",

note = "Original article can be found at: http://www.adsabs.harvard.edu/ Copyright European Southern Observatory",

year = "1990",

language = "English",

volume = "83",

pages = "183--204",

journal = "Astronomy and Astrophysics: Supplement Series",

issn = "0365-0138",

publisher = "EDP Sciences",

number = "1",

}

TY - JOUR

T1 - Optical and infrared polarimetry and photometry of blazars

AU - Mead, A.R.G.

AU - Ballard, K.R.

AU - Brand, P.W.J.L.

AU - Hough, J.

AU - Brindle, C.

AU - Bailey, J.

N1 - Original article can be found at: http://www.adsabs.harvard.edu/ Copyright European Southern Observatory

PY - 1990

Y1 - 1990

N2 - We have carried out a polarization study of 44 blazars and candidate blazars at optical and near-infrared frequencies covering the period 1986 August to 1988 February. The data show flux and polarization properties changing on internight timescales, and commonly exhibit frequency dependence of a spectral index, polarization and polarization position angle. The observations of the quasar 1253 - 055(3C279) showed a U-band polarization of 45.5 ± 0.9%, the highest ever seen in a blazar. The interpretation of the data is the subject of a further paper (Ballard et al., 1989).

AB - We have carried out a polarization study of 44 blazars and candidate blazars at optical and near-infrared frequencies covering the period 1986 August to 1988 February. The data show flux and polarization properties changing on internight timescales, and commonly exhibit frequency dependence of a spectral index, polarization and polarization position angle. The observations of the quasar 1253 - 055(3C279) showed a U-band polarization of 45.5 ± 0.9%, the highest ever seen in a blazar. The interpretation of the data is the subject of a further paper (Ballard et al., 1989).

KW - BL Lacertae objects

KW - quasars

KW - visible spectrum

M3 - Article

SN - 0365-0138

VL - 83

SP - 183

EP - 204

JO - Astronomy and Astrophysics: Supplement Series

JF - Astronomy and Astrophysics: Supplement Series

IS - 1

ER -

Optical and infrared polarimetry and photometry of blazars

Abstract

Keywords

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