Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Noda, Tsuneo"'
Autor:
Dohi, Akira, Iwakiri, Wataru, Nishimura, Nobuya, Noda, Tsuneo, Nagataki, Shigehiro, Hashimoto, Masa-aki
Type-I X-ray bursts are rapid-brightening transient phenomena on the surfaces of accreting neutron stars (NSs). Some X-ray bursts, called {\it clocked bursters}, exhibit regular behavior with similar light curve profiles in their burst sequences. The
Externí odkaz:
http://arxiv.org/abs/2311.02853
Autor:
Dohi, Akira, Nishimura, Nobuya, Sotani, Hajime, Noda, Tsuneo, Liu, Helei, Nagataki, Shigehiro, Hashimoto, Masa-aki
Publikováno v:
ApJ 937 124 (2022)
We investigate the impacts of neutrino cooling mechanism inside the neutron star (NS) core on the light curves of type-I X-ray bursts and X-ray superbursts. From several observations of NS thermal evolution, physical processes of fast neutrino coolin
Externí odkaz:
http://arxiv.org/abs/2208.14622
We studied thermal evolution of isolated neutron stars (NSs) including the pion condensation core, with an emphasis on the stiffness of equation of state (EOS). Many temperature observations can be explained by the minimal cooling scenario which excl
Externí odkaz:
http://arxiv.org/abs/2112.13302
We model the quiescent luminosity of accreting neutron stars with several equation of states (EOSs), including the effect of pion condensation and superfluidity. As a consequence of comparison with the observations, we show that the results with Toga
Externí odkaz:
http://arxiv.org/abs/2102.04012
Publikováno v:
Prog.Theor.Exp.Phys.2019,113E01
Whether fast cooling processes occur or not is crucial for the thermal evolution of neutron stars. In particular, the threshold of the direct Urca process, which is one of the fast cooling processes, is determined by the interior proton fraction $Y_p
Externí odkaz:
http://arxiv.org/abs/1910.01431
MAXI J0556-332 is the hottest transient accreting neutron star at the beginning of its quiescence. A theoretical model with crustal heating indicates that an additional shallow heat source of Qshallow > 6 MeV per accreted nucleon is required in the s
Externí odkaz:
http://arxiv.org/abs/1703.01734
Autor:
Matsuo, Yasuhide, Hashimoto, Masa-aki, Hayashida, Koutarou, Liu, Helei, Noda, Tsuneo, Fujimoto, Masayuki Y.
Quiescent X-ray luminosities are presented in low mass X-ray binaries with use of evolutionary calculations. The calculated luminosities are compared with observed ones in terms of timeaveraged mass accretion rate. It is shown that neutrino emission
Externí odkaz:
http://arxiv.org/abs/1610.09100
Autor:
Noda, Tsuneo, Yasutake, Nobutoshi, Hashimoto, Masa-aki, Maruyama, Toshiki, Tatsumi, Toshitaka, Fujimoto, Masayuki Y.
We show a scenario for the cooling of compact stars considering the central source of Cassiopeia A (Cas A). The Cas A observation shows that the central source is a compact star with high effective temperature, and it is consistent with the cooling w
Externí odkaz:
http://arxiv.org/abs/1512.05468
Publikováno v:
Nova, (2013), Chap.4, pp.63, ISBN 9781622579709
One of the most promising possibilities may be the appearance of quark matter in astrophysical phenomena in the light of recent progress in observations. The mechanism of deconfinement is not well understood, but the thermodynamical aspects of the ha
Externí odkaz:
http://arxiv.org/abs/1208.0427
Autor:
Noda, Tsuneo1 noda@kurume-it.ac.jp, Yasutake, Nobutoshi2, Hashimoto, Masa-aki3, Maruyama, Toshiki4, Tatsumi, Toshitaka5
Publikováno v:
EPJ Web of Conferences. 2/24/2022, Vol. 260, p1-6. 6p.