@article{fdi:010077426,
title = {{A} search for cosmic neutrino and gamma-ray emitting transients in 7.3 yr of {ANTARES} and {F}ermi {LAT} {D}ata},
author = {{S}olares, {H}. {A}. {A}. and {C}owen, {D}. {F}. and {D}e{L}aunay, {J}. {J}. and {F}ox, {D}. {B}. and {K}eivani, {A}. and {M}ostafa, {M}. and {M}urase, {K}. and {T}urley, {C}. {F}. and {A}lbert, {A}. and {A}ndre, {M}. and {A}nghinolfi, {M}. and {A}nton, {G}. and {A}rdid, {M}. and {A}ubert, {J}. {J}. and {A}ublin, {J}. and {B}aret, {B}. and {B}arrios-{M}arti, {J}. and {B}asa, {S}. and {B}elhorma, {B}. and {B}ertin, {V}. and {B}iagi, {S}. and {B}ormuth, {R}. and {B}oumaaza, {J}. and {B}ourret, {S}. and {B}outa, {M}. and {B}ouwhuis, {M}. {C}. and {B}ranzas, {H}. and {B}ruijn, {R}. and {B}runner, {J}. and {B}usto, {J}. and {C}apone, {A}. and {C}aramete, {L}. and {C}arr, {J}. and {C}elli, {S}. and {C}habab, {M}. and {E}l {M}oursli, {R}. {C}. and {C}hiarusi, {T}. and {C}ircella, {M}. and {C}oleiro, {A}. and {C}olomer, {M}. and {C}oniglione, {R}. and {C}ostantini, {H}. and {C}oyle, {P}. and {C}reusot, {A}. and {D}iaz, {A}. {F}. and {D}eschamps, {A}. and {D}istefano, {C}. and {D}i {P}alma, {I}. and {D}omi, {A}. and {D}ona, {R}. and {D}onzaud, {C}. and {D}ornic, {D}. and {D}rouhin, {D}. and {E}berl, {T}. and {E}l {B}ojaddaini, {I}. and {E}l {K}hayati, {N}. and {E}lsasser, {D}. and {E}nzenhofer, {A}. and {E}ttahiri, {A}. and {F}assi, {F}. and {F}ermani, {P}. and {F}errara, {G}. and {F}usco, {L}. and {G}ay, {P}. and {G}lotin, {H}. and {G}ozzini, {R}. and {G}regoire, {T}. and {R}uiz, {R}. {G}. and {G}raf, {K}. and {H}allmann, {S}. and van {H}aren, {H}. and {H}eijboer, {A}. {J}. and {H}ello, {Y}ann and {H}ernandez-{R}ey, {J}. {J}. and {H}ossl, {J}. and {H}ofestadt, {J}. and {I}lluminati, {G}. and {J}ames, {C}. {W}. and de {J}ong, {M}. and {J}ongen, {M}. and {K}adler, {M}. and {K}alekin, {O}. and {K}atz, {U}. and {K}han-{C}howdhury, {N}. {R}. and {K}ouchner, {A}. and {K}reter, {M}. and {K}reykenbohm, {I}. and {K}ulikovskiy, {V}. and {L}ahmann, {R}. and {L}e {B}reton, {R}. and {L}efevre, {D}. and {L}eonora, {E}. and {L}evi, {G}. and {L}incetto, {M}. and {L}opez-{C}oto, {D}. and {L}otze, {M}. and {L}oucatos, {S}. and {M}aggi, {G}. and {M}arcelin, {M}. and {M}argiotta, {A}. and {M}arinelli, {A}. and {M}artinez-{M}ora, {J}. {A}. and {M}ele, {R}. and {M}elis, {K}. and {M}igliozzi, {P}. and {M}oussa, {A}. and {N}avas, {S}. and {N}ezri, {E}. and {N}ielsen, {C}. and {N}unez, {A}. and {O}rganokov, {M}. and {P}avalas, {G}. {E}. and {P}ellegrino, {C}. and {P}errin-{T}errin, {M}. and {P}iattelli, {P}. and {P}opa, {V}. and {P}radier, {T}. and {Q}uinn, {L}. and {R}acca, {C}. and {R}andazzo, {N}. and {R}iccobene, {G}. and {S}anchez-{L}osa, {A}. and {S}alah-{E}ddine, {A}. and {S}alvadori, {I}. and {S}amtleben, {D}. {F}. {E}. and {S}anguineti, {M}. and {S}apienza, {P}. and {S}chussler, {F}. and {S}purio, {M}. and {S}tolarczyk, {T}. and {T}aiuti, {M}. and {T}ayalati, {Y}. and {T}hakore, {T}. and {T}rovato, {A}. and {V}allage, {B}. and {V}an {E}lewyck, {V}. and {V}ersari, {F}. and {V}iola, {S}. and {V}ivolo, {D}. and {W}ilms, {J}. and {Z}aborov, {D}. and {Z}ornoza, {J}. {D}. and {Z}uniga, {J}. and {A}ntares {C}ollaboration,},
language = {{ENG}},
abstract = {{W}e analyze 7.3 yr of {ANTARES} high-energy neutrino and {F}ermi {L}arge {A}rea {T}elescope ({LAT}) gamma-ray data in search of cosmic neutrino + gamma-ray (nu + gamma) transient sources or source populations. {O}ur analysis has the potential to detect either individual nu + gamma transient sources (durations delta t less than or similar to 1000 s), if they exhibit sufficient gamma-ray or neutrino multiplicity, or a statistical excess of nu + gamma transients of individually lower multiplicities. {I}ndividual high gamma-ray multiplicity events could be produced, for example, by a single {ANTARES} neutrino in coincidence with a {LAT}-detected gamma-ray burst. {T}reating {ANTARES} track and cascade event types separately, we establish detection thresholds by {M}onte {C}arlo scrambling of the neutrino data, and determine our analysis sensitivity by signal injection against these scrambled data sets. {W}e find our analysis is sensitive to nu + gamma transient populations responsible for >5% of the observed gamma-coincident neutrinos in the track data at 90% confidence. {A}pplying our analysis to the unscrambled data reveals no individual nu + gamma events of high significance; two {ANTARES} track + {F}ermi gamma-ray events are identified that exceed a once per decade false alarm rate threshold (p = 17%). {N}o evidence for subthreshold nu + gamma source populations is found among the track (p = 39%) or cascade (p = 60%) events. {E}xploring a possible correlation of high-energy neutrino directions with {F}ermi gamma-ray sky brightness identified in previous work yields no added support for this correlation. {W}hile {TXS}.0506+056, a blazar and variable (nontransient) {F}ermi gamma-ray source, has recently been identified as the first source of high-energy neutrinos, the challenges in reconciling observations of the {F}ermi gamma-ray sky, the {I}ce{C}ube high-energy cosmic neutrinos, and ultrahigh-energy cosmic rays using only blazars suggest a significant contribution by other source populations. {S}earches for transient sources of high-energy neutrinos thus remain interesting, with the potential for either neutrino clustering or multimessenger coincidence searches to lead to discovery of the first nu + gamma transients.},
keywords = {{BL} {L}acertae objects: general ; cosmic rays ; gamma-ray burst: general ; gamma rays: general ; neutrinos},
journal = {{A}strophysical {J}ournal},
volume = {886},
numero = {2},
pages = {art. 98 [8p.]},
ISSN = {0004-637{X}},
year = {2019},
DOI = {10.3847/1538-4357/ab4a74},
URL = {http://www.documentation.ird.fr/hor/fdi:010077426},
}