112 citations
- RIKENJP13 papers
- Tokyo Institute of TechnologyJP12 papers
- Nihon UniversityJP11 papers
- Ehime UniversityJP9 papers
- Kyoto UniversityJP9 papers
- Goddard Space Flight CenterUS7 papers
- The University of TokyoJP6 papers
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- Japan Aerospace Exploration AgencyJP5 papers
- California Institute of TechnologyUS4 papers
55 papers
Page curves and island's delays in asymptotically flat 2d spacetimes with injections
Yuuta Saito
We explore spacetimes with multiple energy injections in asymptotically flat two-dimensional black hole and analyze the entanglement entropy in such spacetimes. This work is an ext…
Evolution of Accretion Disk Structure of the Black Hole X-ray Binary MAXI J1820070 during the Rebrightening Phase
Tomohiro Yoshitake, Megumi Shidatsu, Yoshihiro Ueda +18
To understand the evolution of global accretion disk structure in the ``rebrightening'' phase of MAXI J1820070, we perform a comprehensive analysis of its near infrared/optical/…
Multiwavelength Observations of the Black Hole X-ray Binary MAXI J1820070 in the Rebrightening Phase
Tomohiro Yoshitake, Megumi Shidatsu, Yoshihiro Ueda +14
We report the results of quasi-simultaneous multiwavelength (near-infrared, optical, UV, and X-ray) observations of the Galactic X-ray black hole binary MAXI J1820+070 performed in…
Study of radon removal performance of silver-ion exchanged zeolite from air for underground experiments
T. Sone, Y. Takeuchi, M. Matsukura +6
Radon is a common background source for underground astroparticle physics experiments and its removal is essential. In this study, we fabricated several prototype silver-ion exchan…
Evolution of X-ray and optical rapid variability during the low/hard state in the 2018 outburst of MAXI J1820+070 = ASASSN-18ey
Mariko Kimura, Hitoshi Negoro, Shinya Yamada +3
We performed shot analyses of X-ray and optical sub-second flares observed during the low/hard state of the 2018 outburst in MAXI J1820070. Optical shots were less spread than X…
Searching for similarities in the accretion flow of Seyfert 1 galaxies and cataclysmic variables based on flare profiles of IRAS 13224-3809, 1H 0707-495, Mrk 766 and MV Lyr
A. Dobrotka, H. Negoro, P. Bezak
AIMS: We studied fast variability of three selected AGNs, IRAS 13224-3809, 1H 0707-495 and Mrk 766, and the cataclysmic variable MV Lyr observed by XMM-Newton and Kepler spacecraft…