@article{PAR00016506, title = {{A} polarized fast radio burst at low {G}alactic latitude}, author = {{P}etroff, {E}. and {B}urke-{S}polaor, {S}. and {K}eane, {E}. {F}. and {M}c{L}aughlin, {M}. {A}. and {M}iller, {R}. and {A}ndreoni, {I}. and {B}ailes, {M}. and {B}arr, {E}. {D}. and {B}ernard, {S}. {R}. and {B}handari, {S}. and {B}hat, {N}. {D}. {R}. and {B}urgay, {M}. and {C}aleb, {M}. and {C}hampion, {D}. and {C}handra, {P}. and {C}ooke, {J}. and {D}hillon, {V}. {S}. and {F}arnes, {J}. {S}. and {H}ardy, {L}. {K}. and {J}aroenjittichai, {P}. and {J}ohnston, {S}. and {K}asliwal, {M}. and {K}ramer, {M}. and {L}ittlefair, {S}. {P}. and {M}acquart, {J}. {P}. and {M}ickaliger, {M}. and {P}ossenti, {A}. and {P}ritchard, {T}. and {R}avi, {V}. and {R}est, {A}. and {R}owlinson, {A}. and {S}awangwit, {U}. and {S}tappers, {B}. and {S}ullivan, {M}. and {T}iburzi, {C}. and van {S}traten, {W}. and {H}ello, {Y}ann and et al. and {A}ntares {C}ollaboration and {H}.{E}.{S}.{S}. {C}ollaboration}, editor = {}, language = {{ENG}}, abstract = {{W}e report on the discovery of a new fast radio burst ({FRB}), {FRB} 150215, with the {P}arkes radio telescope on 2015 {F}ebruary 15. {T}he 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) {J}y. {T}he {FRB} originated at a {G}alactic longitude and latitude of 24.66 degrees, 5.28 degrees and 25 degrees away from the {G}alactic {C}enter. {T}he 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. {T}he burst was followed up with 11 telescopes to search for radio, optical, {X}-ray, gamma-ray and neutrino emission. {N}either 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. {T}he sightline to the burst is close to the {G}alactic 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. {T}he {G}alactic {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 {M}ilky {W}ay, or some combination of these effects. {A} lower {G}alactic {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.}, keywords = {polarization ; methods: data analysis ; surveys ; {ISM}: structure}, booktitle = {}, journal = {{M}onthly {N}otices of the {R}oyal {A}stronomical {S}ociety}, volume = {469}, numero = {4}, pages = {4465--4482}, ISSN = {0035-8711}, year = {2017}, DOI = {10.1093/mnras/stx1098}, URL = {https://www.documentation.ird.fr/hor/{PAR}00016506}, }