Zobrazeno 1 - 10
of 280
pro vyhledávání: '"Ryoji Matsumoto"'
Autor:
Taichi Igarashi, Hiroyuki R. Takahashi, Tomohisa Kawashima, Ken Ohsuga, Yosuke Matsumoto, Ryoji Matsumoto
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 2, p 121 (2024)
Strong soft X-ray emission called soft X-ray excess is often observed in luminous active galactic nuclei (AGN). It has been suggested that the soft X-rays are emitted from a warm ( T = 10 ^6 ∼ 10 ^7 K) region that is optically thick for the Thomson
Externí odkaz:
https://doaj.org/article/de23d71abb0542e4aad68286f49a9d30
Publikováno v:
Galaxies, Vol 7, Iss 1, p 14 (2019)
In astrophysical jets observed in active galactic nuclei and in microquasars, the energy exchange rate by Coulomb collision is insufficient for thermal equilibrium between ions and electrons. Therefore, it is necessary to consider the difference betw
Externí odkaz:
https://doaj.org/article/cf1b01e3831f46c8b718ffb4a0e7340d
2D MHD Simulations of the State Transitions of X-Ray Binaries Taking into Account Thermal Conduction
Publikováno v:
Galaxies, Vol 7, Iss 1, p 22 (2019)
Thermal conduction plays an important role in bimodal accretion flows consisting of high-temperature flow and cool flow, especially when the temperature is high and/or has a steep gradient. For example, in hard-to-soft transitions of black hole accre
Externí odkaz:
https://doaj.org/article/a5f4ac1b216e4c009d95f7faa2ce9203
Autor:
Tshering Penjor, Masashi Yamamoto, Miki Uehara, Manami Ide, Natsumi Matsumoto, Ryoji Matsumoto, Yukio Nagano
Publikováno v:
PLoS ONE, Vol 8, Iss 4, p e62574 (2013)
The genus Citrus includes mandarin, orange, lemon, grapefruit and lime, which have high economic and nutritional value. The family Rutaceae can be divided into 7 subfamilies, including Aurantioideae. The genus Citrus belongs to the subfamily Aurantio
Externí odkaz:
https://doaj.org/article/29801a43a2cd487fb6f274f36f58dcae
Autor:
Hikari Hara, Yusuke Shibayama, Jun-ichi Fukunaga, Taka-aki Hirose, Ryoji Matsumoto, Isao Komiya, Toyoyuki Kato
Publikováno v:
Japanese Journal of Radiological Technology. 79:453-461
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1452ea67cddead8c5437e839fbd72937
https://doi.org/10.6009/jjrt.2023-1323
https://doi.org/10.6009/jjrt.2023-1323
Publikováno v:
The Journal of the Japanese Association for Chest Surgery. 36:785-790
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2bdb0c0633d4c7c7309cef838e06975
https://doi.org/10.2995/jacsurg.36.785
https://doi.org/10.2995/jacsurg.36.785
Autor:
Taichi Igarashi, Yoshiaki Kato, Hiroyuki R. Takahashi, Ken Ohsuga, Yosuke Matsumoto, Ryoji Matsumoto
Publikováno v:
Proceedings of the International Astronomical Union. 16:76-81
We present the results of global three-dimensional radiation magnetohydrodynamic simulations of the formation of soft X-ray emitting regions in active galactic nuclei by applying a radiation magnetohydrodynamic code based on the M1-closure scheme. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2551fd746f4752b3d3695f328505e8d4
https://doi.org/10.1017/s1743921322001557
https://doi.org/10.1017/s1743921322001557
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 493:5761-5772
We present the results of two-temperature magnetohydrodynamic simulations of the propagation of sub-relativistic jets of active galactic nuclei. The dependence of the electron and ion temperature distributions on the fraction of electron heating, fe,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab9c05a611d2878d9b31e3f8afbe5411
https://doi.org/10.1093/mnras/staa632
https://doi.org/10.1093/mnras/staa632
Publikováno v:
The Horticulture Journal. 88:320-328
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46d189035e9f53b303f86166af307aeb
https://doi.org/10.2503/hortj.utd-050
https://doi.org/10.2503/hortj.utd-050
Autor:
Ryoji Matsumoto, Yoshiaki Kato, Ken Ohsuga, Yosuke Matsumoto, Hiroyuki R. Takahashi, Taichi Igarashi
We investigate the origin of the soft X-ray excess component in Seyfert galaxies observed when their luminosity exceeds 0.1% of the Eddington luminosity ($L_{\mathrm{Edd}}$). The evolution of a dense blob in radiatively inefficient accretion flow (RI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e600ea8d07e0196c220cbef2354cd4f
http://arxiv.org/abs/2009.05813
http://arxiv.org/abs/2009.05813
