TY  - JOUR
AU  - ANTARES and HESS Collaborations (Petroff, E. et al
AU  - Barrios-Marti, J.
AU  - Hernandez-Rey, J. J.
AU  - Illuminati, G.
AU  - Lotze, M.
AU  - Tönnis, C.
AU  - Zornoza, J. D.
AU  - Zuñiga, J.
PY  - 2017
DA  - 2017//
TI  - A polarized fast radio burst at low Galactic latitude
T2  - Mon. Not. Roy. Astron. Soc.
JO  - Monthly Notices of the Royal Astronomical Society
SP  - 4465
EP  - 4482
VL  - 469
IS  - 4
PB  - Oxford Univ Press
KW  - polarization
KW  - methods: data analysis
KW  - surveys
KW  - ISM: structure
AB  - 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.
SN  - 0035-8711
UR  - http://arxiv.org/abs/1705.02911
UR  - https://doi.org/10.1093/mnras/stx1098
DO  - 10.1093/mnras/stx1098
LA  - English
N1  - WOS:000406837900051
ID  - ANTARESandHESSCollaborationsPetroff_etal2017
ER  -