Search for Supernova Neutrinos and Constraint on the Galactic Star Formation Rate with the KamLAND Data

Search for Supernova Neutrinos and Constraint on the Galactic Star Formation Rate with the KamLAND Data
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DOI：
10.3847/1538-4357/ac7a3f
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发表时间：
2022-04
期刊：
The Astrophysical Journal
影响因子：
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通讯作者：
S. Abe;S. Asami;M. Eizuka;S. Futagi;A. Gando;Y. Gando;T. Gima;A. Goto;T. Hachiya;K. Hata;K. Hosokawa;K. Ichimura;S. Ieki;H. Ikeda;K. Inoue;K. Ishidoshiro;Y. Kamei;N. Kawada;Y. Kishimoto;M. Koga;M. Kurasawa;N. Maemura;T. Mitsui;H. Miyake;T. Nakahata;K. Nakamura;R. Nakamura;H. Ozaki;T. Sakai;H. Sambonsugi;I. Shimizu;J. Shirai;K. Shiraishi;A. Suzuki;Y. Suzuki;A. Takeuchi;K. Tamae;H. Watanabe;Y. Yoshida;Shuhei Obara;A. Ichikawa;S. Yoshida;S. Umehara;K. Fushimi;K. Kotera;Y. Urano;B. Berger;B. Fujikawa;J. Learned;J. Maricic;S. Axani;L. Winslow;Z. Fu;J. Ouellet;Y. Efremenko;H. Karwowski;D. Markoff;W. Tornow;A. Li;J. Detwiler;S. Enomoto;M. Decowski;C. Grant;H. Song;T. O’Donnell;S. Dell’Oro
S. Abe;S. Asami;M. Eizuka;S. Futagi;A. Gando;Y. Gando;T. Gima;A. Goto;T. Hachiya;K. Hata;K. Hosokawa;K. Ichimura;S. Ieki;H. Ikeda;K. Inoue;K. Ishidoshiro;Y. Kamei;N. Kawada;Y. Kishimoto;M. Koga;M. Kurasawa;N. Maemura;T. Mitsui;H. Miyake;T. Nakahata;K. Nakamura;R. Nakamura;H. Ozaki;T. Sakai;H. Sambonsugi;I. Shimizu;J. Shirai;K. Shiraishi;A. Suzuki;Y. Suzuki;A. Takeuchi;K. Tamae;H. Watanabe;Y. Yoshida;Shuhei Obara;A. Ichikawa;S. Yoshida;S. Umehara;K. Fushimi;K. Kotera;Y. Urano;B. Berger;B. Fujikawa;J. Learned;J. Maricic;S. Axani;L. Winslow;Z. Fu;J. Ouellet;Y. Efremenko;H. Karwowski;D. Markoff;W. Tornow;A. Li;J. Detwiler;S. Enomoto;M. Decowski;C. Grant;H. Song;T. O’Donnell;S. Dell’Oro
中科院分区：
其他
文献类型：
--
作者：
S. Abe;S. Asami;M. Eizuka;S. Futagi;A. Gando;Y. Gando;T. Gima;A. Goto;T. Hachiya;K. Hata;K. Hosokawa;K. Ichimura;S. Ieki;H. Ikeda;K. Inoue;K. Ishidoshiro;Y. Kamei;N. Kawada;Y. Kishimoto;M. Koga;M. Kurasawa;N. Maemura;T. Mitsui;H. Miyake;T. Nakahata;K. Nakamura;R. Nakamura;H. Ozaki;T. Sakai;H. Sambonsugi;I. Shimizu;J. Shirai;K. Shiraishi;A. Suzuki;Y. Suzuki;A. Takeuchi;K. Tamae;H. Watanabe;Y. Yoshida;Shuhei Obara;A. Ichikawa;S. Yoshida;S. Umehara;K. Fushimi;K. Kotera;Y. Urano;B. Berger;B. Fujikawa;J. Learned;J. Maricic;S. Axani;L. Winslow;Z. Fu;J. Ouellet;Y. Efremenko;H. Karwowski;D. Markoff;W. Tornow;A. Li;J. Detwiler;S. Enomoto;M. Decowski;C. Grant;H. Song;T. O’Donnell;S. Dell’Oro

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我们使用2002年3月9日至2020年4月25日的卡姆兰德长期数据，介绍了寻找核心塌缩超新星中微子的结果。我们主要研究了超新星在1.8-111 MeV能量范围内发射的电子反中微子。在卡姆兰德的数据中，超新星将形成一个中微子事件团，持续时间为∼10 S。我们没有发现中微子团，并给出了超新星爆发速率的上限为0.15年的−1，置信度为90%。核坍缩超新星和失败核坍缩超新星的探测范围分别为40-59kpc和65-81kpc，对应探测概率为95%。本文提出将中微子观测得到的超新星速率换算为银河系恒星形成率。假定修正的Salpter型初始质量函数，在90%的置信度水平下，银河系恒星形成率的上限为&lt；(17.5-22.7)M⊙yr−1。
We present the results of a search for core-collapse supernova neutrinos, using long-term KamLAND data from 2002 March 9 to 2020 April 25. We focus on the electron antineutrinos emitted from supernovae in the energy range of 1.8–111 MeV. Supernovae will make a neutrino event cluster with the duration of ∼10 s in the KamLAND data. We find no neutrino clusters and give the upper limit on the supernova rate to be 0.15 yr−1 with a 90% confidence level. The detectable range, which corresponds to a >95% detection probability, is 40–59 kpc and 65–81 kpc for core-collapse supernovae and failed core-collapse supernovae, respectively. This paper proposes to convert the supernova rate obtained by the neutrino observation to the Galactic star formation rate. Assuming a modified Salpeter-type initial mass function, the upper limit on the Galactic star formation rate is <(17.5–22.7) M ⊙ yr−1 with a 90% confidence level.