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Andreoni, I; Johnston, S; André, M; Anghinolfi, M; Anton, G; Barrios-Martí, J; Bertin, V; Bouwhuis, M. C; Carr, J; Coleiro, A; Coniglione, R; Deschamps, A; De Bonis, G; Distefano, C; Donzaud, C; Geißelsöder, S; Gracia-Ruiz, R; van Haren, H; Heijboer, A. J; Hello, Y; Hugon, C; de Jong, M; Kadler, M; Kalekin, O; Kouchner, A; Kreter, M; Kreykenbohm, I; Lefèvre, D; Leonora, E; Pellegrino, C; Popa, V; Sanguineti, M; Sieger, C; Stolarczyk, Th; Trovato, A; Vizzoca, A; Wilms, J; Angüner, E. O; Becherini, Y; Berge, D; Bernhard, S; Böttcher, M; Brun, F; Bryan, M; Condon, B; Davids, I. D; Domainko, W; Drury, L.O'C; Dutson, K; Eschbach, S; Farnier, C; Fiasson, A; Förster, A; Funk, S; Garrigoux, T; Giavitto, G; Heinzelmann, G; Henri, G; Horns, D; Ivascenko, A; Jamrozy, M; Jogler, T; Jouvin, L; Kerszberg, D; King, J; Kolitzus, D; Kraus, M; Laffon, H; Lees, J.-P; Lemoine-Goumard, M; López-Coto, R; Marx, R; Mitchell, A. M. W; Odaka, H; Ostrowski, M; Oya, I; Padovani, M; Panter, M; Piel, Q; Rowell, G; Rudak, B; Santangelo, A; Shilon, I; Spengler, G; Spies, F; Stawarz, Ł; Steenkamp, R; Stinzing, F; Tavernet, J.-P; Tavernier, T; Trichard, C; Vasileiadis, G; Vuillaume, T; Wagner, S. J; Wagner, R. M; Wouters, D; Zabalza, V; Zacharias, M; Zech, A
Monthly notices of the Royal Astronomical Society, 2017, Volume: 469, Issue: 4Journal Article, Publication
Abstract 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 $^{+1.2}_{-0.5}$ ms, and a measured peak flux density assuming that the burst was at beam centre of 0.7 $^{+0.2}_{-0.1}$ Jy. The FRB originated at a Galactic longitude and latitude of 24.66°, 5.28° and 25° 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, γ-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.
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