论文标题
Collapsar的签名作为高能中微子和$ r $ process nuclei的来源
Signature of Collapsars as Sources for High-energy Neutrinos and $r$-process Nuclei
论文作者
论文摘要
如果折叠剂是高能（HE）中微子和$ r $ process nuclei的来源，则来自$β$ - 新核的$β$ decay的大量低能抗肿瘤，可以消灭neutminos。考虑到他是由间歇性轻度磁性喷头引起的内部冲击产生的，我们表明这种an灭抑制了$ \ gtrsim 300 $ 〜tev的整体中微子光谱，并产生$（f_e+\ \ barv_}：f__ v__ f__+c的相应风味f_ {ν_τ+\barν_τ}）_ \ star \ of（1：10：1）$在源。我们发现，如果考虑到所有类似来源的贡献，那么在ICECUBE上观察到的膨胀通量的新兴中微子通量可以很好地适应弥散的通量。我们的结果突出了中微子在支持折叠术中作为$ r $ $ process核的来源的独特作用，并且可以通过准确测量中微子通量谱和风味组成的弥漫性测量以及从单个来源中的中微子检测来测试。
If collapsars are sources for both high-energy (HE) neutrinos and $r$-process nuclei, the profuse low-energy antineutrinos from $β$-decay of the newly-synthesized nuclei can annihilate the HE neutrinos. Considering HE neutrinos produced at internal shocks induced by intermittent mildly-magnetized jets, we show that such annihilation suppresses the overall HE neutrino spectrum at $\gtrsim 300$~TeV and produces a corresponding flavor composition of $(F_{ν_e+\barν_e}: F_{ν_μ+\barν_μ}: F_{ν_τ+\barν_τ})_\star \approx (1 : 10 : 1)$ at source. We find that the emergent HE neutrino flux can well fit the diffuse flux observed at IceCube if contributions from all similar sources are taken into account. Our results highlight the unique role of HE neutrinos in supporting collapsars as sources for $r$-process nuclei, and can be tested by accurate measurement of the diffuse HE neutrino flux spectrum and flavor composition, as well as detection of HE neutrinos from individual sources.
