Polarimetry of the transient relativistic jet of GRB110328/Swift J164449.3+573451

K. Wiersema, A. J. van der Horst, A. J. Levan, N. R. Tanvir, R. Karjalainen, A. Kamble, C. Kouveliotou, B. D. Metzger, Dave Russell, I. Skillen, R. L.C. Starling, R. A.M.J. Wijers

Research output: Contribution to journalArticle

Abstract

We present deep infrared (K s-band) imaging polarimetry and radio (1.4- and 4.8-GHz) polarimetry of the enigmatic transient Swift J164449.3+573451. This source appears to be a short-lived jet phenomenon in a galaxy at redshift z= 0.354, activated by a sudden mass accretion on to the central massive black hole, possibly caused by the tidal disruption of a star. We aim to find evidence for this scenario through linear polarimetry, as linear polarization is a sensitive probe of jet physics, source geometry and the various mechanisms giving rise to the observed radiation. We find a formal K s-band polarization measurement of P lin= 7.4 ± 3.5 per cent (including systematic errors). Our radio observations show continuing brightening of the source, which allows sensitive searches for linear polarization as a function of time. We find no evidence of linear polarization at radio wavelengths of 1.4 and 4.8 GHz at any epoch, with the most sensitive 3σ limits as deep as 2.1 per cent. These upper limits are in agreement with expectations from scenarios in which the radio emission is produced by the interaction of a relativistic jet with a dense circumsource medium. We further demonstrate how polarization properties can be used to derive properties of the jet in Swift J164449.3+573451, exploiting the similarities between this source and the afterglows of gamma-ray bursts.

Original languageEnglish (US)
Pages (from-to)1942-1948
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume421
Issue number3
DOIs
StatePublished - Apr 1 2012

Fingerprint

polarimetry
polarization
linear polarization
radio
radio observation
radio emission
afterglows
gamma ray bursts
systematic errors
time measurement
galaxies
stars
physics
accretion
probe
probes
wavelength
radiation
geometry
wavelengths

Keywords

  • Galaxies: jets
  • Gamma-ray burst: individual: Swift J164449.3+57345
  • Techniques: polarimetric

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Wiersema, K., van der Horst, A. J., Levan, A. J., Tanvir, N. R., Karjalainen, R., Kamble, A., ... Wijers, R. A. M. J. (2012). Polarimetry of the transient relativistic jet of GRB110328/Swift J164449.3+573451. Monthly Notices of the Royal Astronomical Society, 421(3), 1942-1948. https://doi.org/10.1111/j.1365-2966.2011.20379.x

Polarimetry of the transient relativistic jet of GRB110328/Swift J164449.3+573451. / Wiersema, K.; van der Horst, A. J.; Levan, A. J.; Tanvir, N. R.; Karjalainen, R.; Kamble, A.; Kouveliotou, C.; Metzger, B. D.; Russell, Dave; Skillen, I.; Starling, R. L.C.; Wijers, R. A.M.J.

In: Monthly Notices of the Royal Astronomical Society, Vol. 421, No. 3, 01.04.2012, p. 1942-1948.

Research output: Contribution to journalArticle

Wiersema, K, van der Horst, AJ, Levan, AJ, Tanvir, NR, Karjalainen, R, Kamble, A, Kouveliotou, C, Metzger, BD, Russell, D, Skillen, I, Starling, RLC & Wijers, RAMJ 2012, 'Polarimetry of the transient relativistic jet of GRB110328/Swift J164449.3+573451', Monthly Notices of the Royal Astronomical Society, vol. 421, no. 3, pp. 1942-1948. https://doi.org/10.1111/j.1365-2966.2011.20379.x
Wiersema, K. ; van der Horst, A. J. ; Levan, A. J. ; Tanvir, N. R. ; Karjalainen, R. ; Kamble, A. ; Kouveliotou, C. ; Metzger, B. D. ; Russell, Dave ; Skillen, I. ; Starling, R. L.C. ; Wijers, R. A.M.J. / Polarimetry of the transient relativistic jet of GRB110328/Swift J164449.3+573451. In: Monthly Notices of the Royal Astronomical Society. 2012 ; Vol. 421, No. 3. pp. 1942-1948.
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AU - Karjalainen, R.

AU - Kamble, A.

AU - Kouveliotou, C.

AU - Metzger, B. D.

AU - Russell, Dave

AU - Skillen, I.

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