Rapid polarization variability in the BL Lacertae object S5 0716 + 714

Christopher D Impey, Victor Bychkov, Santiago Tapia, Yuri Gnedin, Simon Pustilnik

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We present optical polarimetry of the violently variable BL Lacertae object S5 0716 + 714, obtained over a three year period using the 6 m telescope at the Special Astrophysical Observatory in Russia. The degree of polarization is high and variable throughout the observations. With a minimum time resolution of 1 minute, significant variations on a timescale of 10-15 minutes are observed. The variations are complex and not fully sampled by this data, but they are characterized by large amplitude changes on a timescale of about 1 day superposed on smooth variations with a timescale of about 1 week. Possible periods of 12.5, 2.5, and 0.14 days have been discovered. S5 0716 + 714 is a highly compact radio source with nonthermal emission observed across the electromagnetic spectrum out to gamma rays. The optical polarization variations are consistent with relativistically beamed synchrotron emission viewed at a very small angle to the line of sight.

Original languageEnglish (US)
Pages (from-to)1542-1561
Number of pages20
JournalAstronomical Journal
Volume119
Issue number4
StatePublished - Apr 2000

Fingerprint

BL Lacertae objects
polarization
timescale
nonthermal radiation
electromagnetic spectra
optical polarization
polarimetry
observatory
Russian Federation
radio
line of sight
observatories
astrophysics
synchrotrons
gamma rays
telescopes

Keywords

  • BL Lacertae objects: individual (0716 + 714)
  • Galaxies: nuclei
  • Polarization
  • Quasars: general
  • Radio emission lines

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Impey, C. D., Bychkov, V., Tapia, S., Gnedin, Y., & Pustilnik, S. (2000). Rapid polarization variability in the BL Lacertae object S5 0716 + 714. Astronomical Journal, 119(4), 1542-1561.

Rapid polarization variability in the BL Lacertae object S5 0716 + 714. / Impey, Christopher D; Bychkov, Victor; Tapia, Santiago; Gnedin, Yuri; Pustilnik, Simon.

In: Astronomical Journal, Vol. 119, No. 4, 04.2000, p. 1542-1561.

Research output: Contribution to journalArticle

Impey, CD, Bychkov, V, Tapia, S, Gnedin, Y & Pustilnik, S 2000, 'Rapid polarization variability in the BL Lacertae object S5 0716 + 714', Astronomical Journal, vol. 119, no. 4, pp. 1542-1561.
Impey CD, Bychkov V, Tapia S, Gnedin Y, Pustilnik S. Rapid polarization variability in the BL Lacertae object S5 0716 + 714. Astronomical Journal. 2000 Apr;119(4):1542-1561.
Impey, Christopher D ; Bychkov, Victor ; Tapia, Santiago ; Gnedin, Yuri ; Pustilnik, Simon. / Rapid polarization variability in the BL Lacertae object S5 0716 + 714. In: Astronomical Journal. 2000 ; Vol. 119, No. 4. pp. 1542-1561.
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