论文标题

Antares使用天体物理目录搜索中微子的点源:可能性堆叠分析

ANTARES search for point-sources of neutrinos using astrophysical catalogs: a likelihood stacking analysis

论文作者

Albert, A., André, M., Anghinolfi, M., Anton, G., Ardid, M., Aubert, J. -J., Aublin, J., Baret, B., Basa, S., Belhorma, B., Bertin, V., Biagi, S., Bissinger, M., Boumaaza, J., Bouta, M., Bouwhuis, M. C., Branzas, H., Bruijn, R., Brunner, J., Busto, J., Capone, A., Caramete, L., Carr, J., Carretero, V., Celli, S., Chabab, M., Chau, T. N., Moursli, R., Chiarusi, T., Circella, M., Coleiro, A., Colomer-Molla, M., Coniglione, R., Coyle, P., Creusot, A., Diaz, A. F., de Wasseige, G., Deschamps, A., Distefano, C., di Palma, I., Domi, A., Donzaud, C., Dornic, D., Drouhin, D., Eberl, T., Khayati, N., Enzenhofer, A., Fermani, P., Ferrara, G., Filippini, F., Fusco, L., Gatelet, Y., Gay, P., Glotin, H., Gozzini, R., Gracia, R., Graf, K., Guidi, C., Hallmann, S., Haren, H., Heijboer, A. J., Hello, Y., Hernandez-Rey, J. J., Hössl, J., Hofestädt, J., Huang, F., Illuminati, G., James, C. W., Jisse-Jung, B., Jong, M., Jong, P., Jongen, M., Kadler, M., Kalekin, O., Katz, U., Khan-Chowdhury, N. R., Kouchner, A., Kreykenbohm, I., Kulikovskiy, V., Lahmann, R., Breton, R., Lefèvre, D., Leonora, E., Levi, G., Lincetto, M., Lopez-Coto, D., Loucatos, S., Maderer, L., Manczak, J., Marcelin, M., Margiotta, A., Marinelli, A., Martinez-Mora, J. A., Mazzou, S., Melis, K., Migliozzi, P., Moser, M., Moussa, A., Muller, R., Nauta, L., Navas, S., Nezri, E., Nunez-Castineyra, A., O'Fearraigh, B., Organokov, M., Palavas, G. E., Pellegrino, C., Perrin-Terrin, M., Piattelli, P., Pieterse, C., Poirè, C., Popa, V., Pradier, T., Randazzo, N., Reck, S., Riccobene, G., Greus, F., Samtleben, D. F., Sanchez-Losa, A., Sanguineti, M., Sapienza, P., Schnabel, J., Schussler, F., Spurio, M., Stolarczyk, Th., Taiuti, M., Tayalati, Y., Thakore, T., Tingay, S. J., Vallage, B., Elewyck, V., Versari, F., Viola, S., Vivolo, D., Wilms, J., Zegarelli, A., Zornoza, J. D., Zuniga, J., Buson, S.

论文摘要

提出了使用Antares检测器在2007年1月29日,2007年至2017年12月31日收集的数据来搜索类似天体物理点的中微子来源。一种似然堆叠方法用于评估过量的振子中微子的过量意义,该中微子与可能的来源列表相关,引起类似轨道的事件。 Different sets of objects are tested in the analysis: a) a sub-sample of the \textit{Fermi} 3LAC catalog of blazars, b) a jet-obscured AGN population, c) a sample of soft gamma-ray selected radio galaxies, d) a star-forming galaxy catalog , and e) a public sample of 56 very-high-energy track events from the IceCube experiment. 测试的来源均未显示与Antares检测到的中微子样品的显着关联。获得的最小p值是针对具有相同权重假设的射电星系目录获得的,其预审前的p值等于$ 2.8 \,σ$多余,相当于$ 1.6 \,σ$σ$。 此外,还报道了针对Blazar MG3 J225517+2409的专用分析的结果:发现该来源是\ textIt {Fermi} 3LAC样本中最重要的,其中5个Antares事件位于与源相距不到一个程度的Antares事件。这种Blazar在\ textIt {fermi}数据中显示了爆炸活性的证据,在时空重合与IceCube检测到的高能量轨道中。报告了Antares和IceCube数据组合的$ 2.0 \,σ$的\ emph {a后验}的意义。

A search for astrophysical point-like neutrino sources using the data collected by the ANTARES detector between January 29, 2007 and December 31, 2017 is presented. A likelihood stacking method is used to assess the significance of an excess of muon neutrinos inducing track-like events in correlation with the location of a list of possible sources. Different sets of objects are tested in the analysis: a) a sub-sample of the \textit{Fermi} 3LAC catalog of blazars, b) a jet-obscured AGN population, c) a sample of soft gamma-ray selected radio galaxies, d) a star-forming galaxy catalog , and e) a public sample of 56 very-high-energy track events from the IceCube experiment. None of the tested sources shows a significant association with the sample of neutrinos detected by ANTARES. The smallest p-value is obtained for the radio galaxies catalog with an equal weights hypothesis, with a pre-trial p-value equivalent to a $2.8 \, σ$ excess, equivalent to $1.6 \, σ$ post-trial. In addition, the results of a dedicated analysis for the blazar MG3 J225517+2409 are also reported: this source is found to be the most significant within the \textit{Fermi} 3LAC sample, with 5 ANTARES events located at less than one degree from the source. This blazar showed evidence of flaring activity in \textit{Fermi} data, in space-time coincidence with a high-energy track detected by IceCube. An \emph{a posteriori} significance of $2.0\, σ$ for the combination of ANTARES and IceCube data is reported.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源