122 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Kyushu UniversityJP12 papers
- The University of TokyoJP8 papers
- Kyoto UniversityJP6 papers
- National Astronomical Observatory of JapanJP6 papers
- Saitama UniversityJP5 papers
- Waseda UniversityJP5 papers
- Kumamoto UniversityJP4 papers
- Center for Astrophysics Harvard & SmithsonianUS3 papers
- Institute of Space and Astronautical ScienceJP3 papers
- Japan Aerospace Exploration AgencyJP3 papers
- Kanto Gakuin UniversityJP3 papers
- Meiji UniversityJP3 papers
11 papers · 1 filter
Chlorine and Potassium Enrichment in the Cassiopeia A Supernova Remnant
XRISM collaboration
The elements in the universe are synthesized primarily in stars and supernovae, where nuclear fusion favors the production of even-Z elements. In contrast, odd-Z elements are less…
Mapping Cassiopeia A's silicon/sulfur Doppler velocities with XRISM-Resolve
Jacco Vink, Manan Agarwal, Aya Bamba +22
Young supernova remnants (SNRs) provide crucial insights into explosive nucleosynthesis products and their velocity distribution soon after the explosion. However, these velocities…
Measuring the asymmetric expansion of the Fe ejecta of Cassiopeia A with XRISM/Resolve
Aya Bamba, Manan Agarwal, Jacco Vink +24
The expansion structure of supernova remnants (SNRs) is important for understanding not only how heavy elements are distributed into space, but also how supernovae explode. The eje…
Explosive nucleosynthesis with fast neutrino-flavor conversion in core-collapse supernovae
Shin-ichiro Fujimoto, Hiroki Nagakura
Fast neutrino-flavor conversion (FFC) is a possible game-changing ingredient in core-collapse supernova (CCSN) theory. In this paper, we examine the impact of FFC on explosive nucl…
Gamma-ray Diagnostics of r-process Nucleosynthesis in the Remnants of Galactic Binary Neutron-Star Mergers
Yukikatsu Terada, Yuya Miwa, Hayato Ohsumi +4
We perform a full nuclear-network numerical calculation of the -process nuclei in binary neutron-star mergers (NSMs), with the aim of estimating -ray emissions from the remna…
Possible Detection of X-Ray Emitting Circumstellar Material in the Synchrotron-Dominated Supernova Remnant RX J 1713.7-3946
Dai Tateishi, Satoru Katsuda, Yukikatsu Terada +4
We report on a discovery of an X-ray emitting circumstellar material knot inside the synchrotron dominant supernova remnant (SNR) RX J1713.7-3946. This knot was previously thought…
The impact of asymmetric neutrino emissions on nucleosynthesis in core-collapse supernovae II -- progenitor dependences --
Shin-ichiro Fujimoto, Hiroki Nagakura
We investigate the impact of asymmetric neutrino-emissions on explosive nucleosynthesis in core-collapse supernovae (CCSNe) of progenitors with a mass range of 9.5 to 25…
The impact of isomers on a kilonova associated with neutron star mergers
Shin-ichiro Fujimoto, Masa-aki Hashimoto
We investigate the significance of isomers on a kilonova associated with neutron star mergers (NSMs) for the first time. We calculate the evolution of abundances and energy generat…
Post-shock-revival evolutions in the neutrino-heating mechanism of core-collapse supernovae
Yu Yamamoto, Shin-ichiro Fujimoto, Hiroki Nagakura +1
We perform some experimental simulations in spherical symmetry and axisymmetry to understand the post-shock-revival evolution of core-collapse supernovae. Assuming that the stalled…
Multimessengers from core-collapse supernovae: multidimensionality as a key to bridge theory and observation
Kei Kotake, Tomoya Takiwaki, Yudai Suwa +4
Core-collapse supernovae are dramatic explosions marking the catastrophic end of massive stars. The only means to get direct information about the supernova engine is from observat…
Explosive nucleosynthesis in the neutrino-driven aspherical supernova explosion of a non-rotating 15 star with solar metallicity
Shin-ichiro Fujimoto, Kei Kotake, Masa-aki Hashimoto +2
We investigate explosive nucleosynthesis in a non-rotating 15 star with solar metallicity that explodes by a neutrino-heating supernova (SN) mechanism aided by both standi…