%0 Journal Article
%T A polarized fast radio burst at low Galactic latitude
%A ANTARES and HESS Collaborations (Petroff, E. et al
%A Barrios-Marti, J.
%A Hernandez-Rey, J. J.
%A Illuminati, G.
%A Lotze, M.
%A Tönnis, C.
%A Zornoza, J. D.
%A Zuñiga, J.
%J Monthly Notices of the Royal Astronomical Society
%D 2017
%V 469
%N 4
%I Oxford Univ Press
%@ 0035-8711
%G English
%F ANTARESandHESSCollaborationsPetroff_etal2017
%O WOS:000406837900051
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3241), last updated on Mon, 19 Aug 2019 06:53:22 +0000
%X We report on the discovery of a new fast radio burst (FRB), FRB 150215, with the Parkes radio telescope on 2015 February 15. The burst was detected in real time with a dispersion measure (DM) of 1105.6 +/- 0.8 pc cm(-3), a pulse duration of 2.8(-0.5)(+1.2) ms, and a measured peak flux density assuming that the burst was at beam centre of 0.7(-0.1)(+0.2) Jy. The FRB originated at a Galactic longitude and latitude of 24.66 degrees, 5.28 degrees and 25 degrees away from the Galactic Center. The burst was found to be 43 +/- 5 per cent linearly polarized with a rotation measure (RM) in the range -9 < RM < 12 rad m(-2) (95 per cent confidence level), consistent with zero. The burst was followed up with 11 telescopes to search for radio, optical, X-ray, gamma-ray and neutrino emission. Neither transient nor variable emission was found to be associated with the burst and no repeat pulses have been observed in 17.25 h of observing. The sightline to the burst is close to the Galactic plane and the observed physical properties of FRB 150215 demonstrate the existence of sight lines of anomalously low RM for a given electron column density. The Galactic RM foreground may approach a null value due to magnetic field reversals along the line of sight, a decreased total electron column density from the Milky Way, or some combination of these effects. A lower Galactic DM contribution might explain why this burst was detectable whereas previous searches at low latitude have had lower detection rates than those out of the plane.
%K polarization
%K methods: data analysis
%K surveys
%K ISM: structure
%R 10.1093/mnras/stx1098
%U http://arxiv.org/abs/1705.02911
%U https://doi.org/10.1093/mnras/stx1098
%P 4465-4482