21 citations · 34 across the 5 of their papers we have counts for
10 papers
Eleven-year, 22-year and ~90-year solar cycles discovered in nitrate concentrations in a Dome Fuji (Antarctica) ice core
Yuko Motizuki, Yoichi Nakai, Kazuya Takahashi +2
Ice cores are known to yield information about astronomical phenomena as well as information about past climate. We report time series analyses of annually resolved nitrate variati…
Gravitational Wave Physics and Astronomy in the nascent era
Makoto Arimoto, Hideki Asada, Michael L. Cherry +50
The detections of gravitational waves (GW) by LIGO/Virgo collaborations provide various possibilities to physics and astronomy. We are quite sure that GW observations will develop…
Diverse Jet Structures Consistent with the Off-axis Afterglow of GRB 170817A
Kazuya Takahashi, Kunihito Ioka
The jet structure of short gamma-ray bursts (GRBs) has been controversial after the detection of GRB 170817A as the electromagnetic counterparts to the gravitational wave event GW1…
Inverse reconstruction of jet structure from off-axis gamma-ray burst afterglows
Kazuya Takahashi, Kunihito Ioka
The gravitational wave event GW170817 and the slowly-rising afterglows of short gamma-ray burst GRB 170817A clearly suggest that the GRB jet has an angular structure. However the a…
A Mechanism for Triple-Ridge Emission Structure of AGN Jets
Taiki Ogihara, Kazuya Takahashi, Kenji Toma
Recent radio VLBI observations of the relativistic jet in M87 radio galaxy have shown a triple-ridge structure that consists of the conventional limb-brightened feature and a centr…
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…