35 citations · 243 across the 17 of their papers we have counts for
17 papers
Two-dimensional models of core-collapse supernova explosions assisted by heavy sterile neutrinos
Kanji Mori, Tomoya Takiwaki, Kei Kotake +1
Core-collapse supernovae can be a copious source of sterile neutrinos, hypothetical particles that mix with active neutrinos. We develop two-dimensional stellar core-collapse model…
Multi-messenger signals of heavy axionlike particles in core-collapse supernovae: two-dimensional simulations
Kanji Mori, Tomoya Takiwaki, Kei Kotake +1
Core-collapse supernovae are a useful laboratory to probe the nature of exotic particles. If axionlike particles (ALPs) are produced in supernovae, they can affect the transfer of…
Ambipolar Heating of Magnetars
Sachiko Tsuruta, Madeline J. Kelly, Ken'ichi Nomoto +3
Magnetars, neutron stars thought to be with ultra-strong magnetic fields of G, are observed to be much hotter than ordinary pulsars with G, and additi…
Light Curves and Event Rates of Axion Instability Supernovae
Kanji Mori, Takashi J. Moriya, Tomoya Takiwaki +3
It was recently proposed that exotic particles can trigger a new stellar instability which is analogous to the e-e+ pair instability if they are produced and reach equilibrium in t…
Evolution of Urca Pairs in the Crusts of Highly Magnetized Neutron Stars
Michael Famiano, Grant Mathews, A. Baha Balantekin +3
We report on the effects of strong magnetic fields on neutrino emission in the modified Urca process. We show that the effect of Landau levels on the various Urca pairs affects the…
Shock Revival in Core-collapse Supernovae Assisted by Heavy Axion-like Particles
Kanji Mori, Tomoya Takiwaki, Kei Kotake +1
Axion-like particles (ALPs) are a class of hypothetical pseudoscalar particles which feebly interact with ordinary matter. The hot plasma of core-collapse supernovae is a possible…
Relativistic Coulomb Screening in Pulsational Pair Instability Supernovae
Michael A. Famiano, Kanji Mori, A. Baha Balantekin +3
Context. Pulsational pair-instabilitye supernovae (PPISNe) and pair instability supernovae (PISNe) are the result of a thermonuclear runaway in the presence of a background electro…
Heavy axion-like particles and MeV decay photons from nearby type Ia supernovae
Kanji Mori
Axion-like particles (ALPs) are hypothetical bosons which may couple with photons. Since many ALPs can be emitted from hot and dense astrophysical plasma, nearby supernovae (SNe) a…
Pre-supernova Ultra-light Axion-like Particles
Kanji Mori, Tomoya Takiwaki, Kei Kotake
We calculate the production of ultra-light axion-like particles (ALPs) in a nearby supernova progenitor. Once produced, ALPs escape from the star and a part of them is converted in…
Screening Effects on Electron Capture Rates and Type Ia Supernova Nucleosynthesis
Kanji Mori, Toshio Suzuki, Michio Honma +4
Type Ia supernovae (SNe Ia) are believed to be a thermonuclear explosion of a white dwarf, but the mass of their progenitors is still an open problem. In near-Chandrasekhar-mass (n…
Enhancement of Lithium in Red Clump Stars by the Additional Energy Loss Induced by New Physics
Kanji Mori, Motohiko Kusakabe, A. Baha Balantekin +2
Since 7Li is easily destroyed in low temperatures, the surface lithium abundance decreases as stars evolve. This is supported by the lithium depletion observed in the atmosphere of…
Elimination of the Blue Loops in the Evolution of Intermediate-mass Stars by the Neutrino Magnetic Moment and Large Extra Dimensions
Kanji Mori, A. Baha Balantekin, Toshitaka Kajino +1
For searching beyond Standard Model physics, stars are laboratories which complement terrestrial experiments. Massless neutrinos in the Standard Model of particle physics cannot ha…
Nuclear Reaction Screening, Weak Interactions, and r-Process Nucleosynthesis in High Magnetic Fields
Michael Famiano, A. Baha Balantekin, Toshitaka Kajino +3
Coulomb screening and weak interactions in a hot, magnetized plasma are investigated. Coulomb screening is evaluated in a relativistic thermal plasma in which electrons and positro…
Roles of BeLi resonances in big bang nucleosynthesis with time-dependent quark mass and Li reduction by a heavy quark mass
Kanji Mori, Motohiko Kusakabe
Big bang nucleosynthesis (BBN) has been used as a probe of beyond-standard physics in the early Universe, which includes a time-dependent quark mass m_q. We investigate effects of…
Impacts of the New Carbon Fusion Cross Sections on Type Ia Supernovae
Kanji Mori, Michael A. Famiano, Toshitaka Kajino +2
Type Ia supernovae (SNe Ia) are thought to be thermonuclear explosion of white dwarfs (WDs). Their progenitors are not well understood. One popular scenario is the double-degenerat…
Nucleosynthesis Constraints on the Explosion Mechanism for Type Ia Supernovae
Kanji Mori, Michael A. Famiano, Toshitaka Kajino +6
Observations of type Ia supernovae include information about the characteristic nucleosynthesis associated with these thermonuclear explosions. We consider observational constraint…
Impact of New Gamow-Teller Strengths on Explosive Type Ia Supernova Nucleosynthesis
Kanji Mori, Michael A. Famiano, Toshitaka Kajino +6
Recent experimental results have confirmed a possible reduction in the GT strengths of pf-shell nuclei. These proton-rich nuclei are of relevance in the deflagration and explos…