arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.10193astro-ph.HE
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IceCube-190331A对应方的多信使观测

Multimessenger observations of counterparts to IceCube-190331A

Felicia Krauß, Emily Calamari, Azadeh Keivani, Alexis Coleiro, Phil A. Evans, Derek B. Fox, Jamie A. Kennea, Peter Mészáros, Kohta Murase, Thomas D. Russell, Ma… 展开作者

Felicia Krauß, Emily Calamari, Azadeh Keivani, Alexis Coleiro, Phil A. Evans, Derek B. Fox, Jamie A. Kennea, Peter Mészáros, Kohta Murase, Thomas D. Russell, Marcos Santander, Aaron Tohuvavohu

摘要:

高能中微子是确定高能和超高能宇宙射线(UHECR)天体物理源的有效工具。最近IceCube-170922 A和TXS 0506+056的关联增强了从耀变体中检测高能($\gtrsim$ TeV)中微子的前景。我们研究了高能中微子,IceCube-190331 A,一个高能量的起始事件(HESE),具有很高的可能性是天体物理的起源。我们启动了一个雨燕/XRT和UVOT平铺马赛克的中微子本地化,并跟进ATCA无线电观测,编译一个多波长SED的最有可能的起源。NuSTAR还对中微子位置和附近的X射线源进行了观测。我们在90%置信度的本地化区域中找到了两个有希望的对应物,并将最亮的对应物确定为最可能的对应物。然而,没有费米/LAT $γ$射线源和没有提示斯威夫特/BAT源是一致的中微子事件。目前尚不清楚是否有任何同行生产了IceCube-190331 A。我们注意到,受阻星云也是一致的中微子事件的位置,我们计算,相关的粒子加速过程不能产生所需的能量,产生一个高能量的HESE中微子。

英文摘要:

High-energy neutrinos are a promising tool for identifying astrophysical sources of high and ultra-high energy cosmic rays (UHECR). Prospects of detecting neutrinos at high energies ($\gtrsim$TeV) from blazars have been boosted after the recent association of IceCube-170922A and TXS 0506+056. We investigate the high-energy neutrino, IceCube-190331A, a high-energy starting event (HESE) with a high likelihood of being astrophysical in origin. We initiated a Swift/XRT and UVOT tiling mosaic of the neutrino localisation, and followed up with ATCA radio observations, compiling a multiwavelength SED for the most likely source of origin. NuSTAR observations of the neutrino location and a nearby X-ray source were also performed. We find two promising counterpart in the 90% confidence localisation region and identify the brightest as the most likely counterpart. However, no Fermi/LAT $γ$-ray source and no prompt Swift/BAT source is consistent with the neutrino event. At this point it is unclear whether any of the counterparts produced IceCube-190331A. We note that the Helix Nebula is also consistent with the position of the neutrino event, and we calculate that associated particle acceleration processes cannot produce the required energies to generate a high-energy HESE neutrino.

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