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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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13 papers · 2 filters
Fast-pairwise collective neutrino oscillations associated with asymmetric neutrino emissions in core-collapse supernova
Hiroki Nagakura, Taiki Morinaga, Chinami Kato +1
We present a linear stability analysis of the fast-pairwise neutrino flavor conversion based on a result of our latest axisymmetric core-collapse supernova (CCSN) simulation with f…
Fast collective neutrino oscillations inside the neutrino sphere in core-collapse supernovae
Milad Delfan Azari, Shoichi Yamada, Taiki Morinaga +6
Neutrinos are believed to have a key role in the explosion mechanism of core-collapse supernovae as they carry most of the energy released by the gravitational collapse of a massiv…
A new possibility of the fast neutrino-flavor conversion in the pre-shock region of core-collapse supernova
Taiki Morinaga, Hiroki Nagakura, Chinami Kato +1
We make a strong case that the fast neutrino-flavor conversion, one of the collective flavor oscillation modes, commonly occurs in core-collapse supernovae (CCSNe). It is confirmed…
Possible early linear acceleration of proto-neutron stars via asymmetric neutrino emission in core-collapse supernovae
Hiroki Nagakura, Kohsuke Sumiyoshi, Shoichi Yamada
In this {\it Letter}, we present the result of an axisymmetric CCSN simulation conducted with appropriate treatments of neutrino transport and proper motions of proto-neutron star…
Three-Dimensional Boltzmann-Hydro Code for core-collapse in massive stars III. A New method for momentum feedback from neutrino to matter
Hiroki Nagakura, Kohsuke Sumiyoshi, Shoichi Yamada
We present a new method for neutrino-matter coupling in multi-dimensional radiation-hydrodynamic simulations of core-collapse supernova (CCSN) with the full Boltzmann neutrino tran…
First Detection of Photons with Energy Beyond 100 TeV from an Astrophysical Source
M. Amenomori, Y. W. Bao, X. J. Bi +88
We report on the highest energy photons from the Crab Nebula observed by the Tibet air shower array with the underground water-Cherenkov-type muon detector array. Based on the crit…
Inverse Compton scattering of starlight in the kiloparsec-scale jet in Centaurus A: The origin of excess TeV -ray emission
Kazuhisa Tanada, Jun Kataoka, Yoshiyuki Inoue
Centaurus A (Cen~A) is the nearest active radio galaxy, which has kiloparsec (kpc) scale jets and {giant lobes detected by various instruments in radio and X-ray frequency ranges}.…
Direct Measurement of the Cosmic-Ray Proton Spectrum from 50 GeV to 10 TeV with the Calorimetric Electron Telescope on the International Space Station
O. Adriani, Y. Akaike, K. Asano +86
In this paper, we present the analysis and results of a direct measurement of the cosmic-ray proton spectrum with the CALET instrument onboard the International Space Station, incl…
Search for Ultra-High-Energy Neutrinos with the Telescope Array Surface Detector
R. U. Abbasi, M. Abe, T. Abu-Zayyad +133
We present an upper limit on the flux of ultra-high-energy down-going neutrinos for $E > 10^{18}\ \mbox{eV}$ derived with the nine years of data collected by the Telescope Array su…
Search for point sources of ultra-high energy photons with the Telescope Array surface detector
Telescope Array Collaboration, R. U. Abbasi, M. Abe +135
The surface detector (SD) of the Telescope Array (TA) experiment allows one to indirectly detect photons with energies of order eV and higher and to separate photons from…
The CALorimetric Electron Telescope (CALET) on the International Space Station: Results from the First Two Years On Orbit
Y. Asaoka, O. Adriani, Y. Akaike +90
The CALorimetric Electron Telescope (CALET) is a high-energy astroparticle physics space experiment installed on the International Space Station (ISS), developed and operated by Ja…
Linear Analysis of the Shock Instability in Core-collapse Supernovae: Influences of Acoustic Power and Fluctuations of Neutrino Luminosity
Ken'ichi Sugiura, Kazuya Takahashi, Shoichi Yamada
This paper is a sequel to Takahashi et al. (2016), in which the authors investigated the influences of fluctuations in pre-shock accreting matter on the linear stability of the sta…
Linear Analysis of Fast-Pairwise Collective Neutrino Oscillations in Core-Collapse Supernovae based on the Results of Boltzmann Simulations
Milad Delfan Azari, Shoichi Yamada, Taiki Morinaga +4
Neutrinos are densely populated deep inside the core of massive stars after their gravitational collapse to produce supernova explosions and form compact stars such as neutron star…