Zobrazeno 1 - 10
of 123 977
pro vyhledávání: '"Kawai, AT"'
Numerical schemes that conserve invariants have demonstrated superior performance in various contexts, and several unified methods have been developed for constructing such schemes. However, the mathematical properties of these schemes remain poorly
Externí odkaz:
http://arxiv.org/abs/2412.15556
Autor:
Yoshitake, Tomohiro, Shidatsu, Megumi, Ueda, Yoshihiro, Nogami, Daisaku, Murata, Katsuhiro L., Higuchi, Narikazu, Isogai, Keisuke, Maehara, Hiroyuki, Mineshige, Shin, Negoro, Hitoshi, Kawai, Nobuyuki, Yatsu, Yoichi, Sasada, Mahito, Takahashi, Ichiro, Niwano, Masafumi, Saito, Tomoki, Takayama, Masaki, Oasa, Yumiko, Takarada, Takuya, Shigeyoshi, Takumi, Collaboration, OISTER
To understand the evolution of global accretion disk structure in the ``rebrightening'' phase of MAXI J1820$+$070, we perform a comprehensive analysis of its near infrared/optical/UV to X-ray spectral energy distribution (SED) utilizing data obtained
Externí odkaz:
http://arxiv.org/abs/2412.11445
Autor:
Yoshitake, Tomohiro, Shidatsu, Megumi, Ueda, Yoshihiro, Mineshige, Shin, Murata, Katsuhiro L., Adachi, Ryo, Maehara, Hiroyuki, Nogami, Daisaku, Negoro, Hitoshi, Kawai, Nobuyuki, Niwano, Masafumi, Hosokawa, Ryohei, Saito, Tomoki, Oasa, Yumiko, Takarada, Takuya, Shigeyoshi, Takumi, Collaboration, OISTER
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 2019 May 10-13, $\sim 60$ days after the onset of the first rebrighte
Externí odkaz:
http://arxiv.org/abs/2412.11442
Autor:
Kawai, Hikaru, Ohta, Nobuyoshi
We discuss the effect of wave function renormalization (WFR) in asymptotically safe gravity. We show that there are two WFR-invariant quantities, and the renormalization (RG) equations may be written entirely in terms of these quantities. The same se
Externí odkaz:
http://arxiv.org/abs/2412.08808
Autor:
Kawai, Hiroki, Oguri, Masamune
Icarus is an individual star observed near the macro-critical curve of the MACS J1149 cluster, with the magnification factor estimated to be an order of thousands. Since microlenses near the macro-critical curve influence the number of such high-magn
Externí odkaz:
http://arxiv.org/abs/2411.13816
Autor:
Furuta, Tatsuhiro, Fan, Shuya, Takada, Tadao, Kondo, Yohei, Fujitsuka, Mamoru, Maruyama, Atsushi, Kawai, Kiyohiko, Nakamura, Kazuma
We examine quantitatively the transition process from emitting to not-emitting states of fluorescent molecules with a machine learning technique. In a fluorescently labeled DNA, the fluorescence occurs continuously under irradiation, but it often tra
Externí odkaz:
http://arxiv.org/abs/2411.12176
Birds exhibit a variety of flight styles, primarily classified as flapping, which is characterized by rapid up-and-down wing movements, and soaring, which involves gliding with wings outstretched. Each species usually performs specific flight styles,
Externí odkaz:
http://arxiv.org/abs/2411.09714
Autor:
Kawai, Shinsuke, Okada, Nobuchika
We investigate the flavour sector of the supersymmetric $SU(5)$ Grand Unified Theory (GUT) model using machine learning techniques. The minimal $SU(5)$ model is known to predict fermion masses that disagree with observed values in nature. There are t
Externí odkaz:
http://arxiv.org/abs/2411.06718
This chapter suggests an alternative solution to the black-hole information paradox by proposing that Hawking radiation ceases around the scrambling time due to trans-Planckian effects inherent in string theory. We consider two toy models in the lite
Externí odkaz:
http://arxiv.org/abs/2411.01105
Autor:
Kawai, Hiroki, Meneghetti, Massimo
The galaxy-galaxy strong lensing (GGSL) cross-section in observed galaxy clusters has been reported to be more than an order of magnitude higher than the theoretical prediction by the standard cold dark matter (CDM) model. In this study, we focus on
Externí odkaz:
http://arxiv.org/abs/2410.14543