Zobrazeno 1 - 10
of 1 638
pro vyhledávání: '"Mineshige, A."'
Optically thick non-thermal synchrotron sources notably produce linear polarization vectors being parallel to projected magnetic field lines on the observer's screen, although they are perpendicular in well-known optically thin cases. To elucidate th
Externí odkaz:
http://arxiv.org/abs/2409.00171
We perform axisymmetric two-dimensional radiation-hydrodynamic simulations of super-Eddington accretion flow and outflow around black holes to examine the properties of radiation and outflow as functions of the black hole mass and the accretion rate
Externí odkaz:
http://arxiv.org/abs/2407.15927
Autor:
Nagoshi, Shumpei, Iwamuro, Fumihide, Yamada, Satoshi, Ueda, Yoshihiro, Oikawa, Yuto, Otsuka, Masaaki, Isogai, Keisuke, Mineshige, Shin
The physical origins of quasar components, such as the broad line region (BLR) and dust torus, remain under debate. To gain insights into them, we focused on Changing-State Quasars (CSQs) which provide a unique perspective through structural changes
Externí odkaz:
http://arxiv.org/abs/2306.13930
Autor:
Inoguchi, Mutsuko, Hosokawa, Takashi, Fukushima, Hajime, Tanaka, Kei E. I., Yajima, Hidenobu, Mineshige, Shin
Young massive clusters (YMCs) are the most massive star clusters forming in nearby galaxies and are thought to be a young analogue to the globular clusters. Understanding the formation process of YMCs leads to looking into very efficient star formati
Externí odkaz:
http://arxiv.org/abs/2305.19432
Autor:
Kawanaka, Norita, Mineshige, Shin
The soft X-ray excess in the spectra of active galactic nuclei is characterized by similar electron temperatures of 0.1 -- 0.3 keV and similar photon indices around 2.2 -- 3, if fitted with inverse Comptonization. It remains a puzzle why both values
Externí odkaz:
http://arxiv.org/abs/2304.07463
Autor:
Tsunetoe, Yuh, Mineshige, Shin, Kawashima, Tomohisa, Ohsuga, Ken, Akiyama, Kazunori, Takahashi, Hiroyuki R.
Publikováno v:
Galaxies 2022, 10(5), 103
Here, we demonstrate that polarization properties show a wide diversity depending on viewing angles. To simulate images of a supermassive black hole and surrounding plasma, we performed a full-polarimetric general relativistic radiative transfer base
Externí odkaz:
http://arxiv.org/abs/2210.12162
In order to precisely evaluate the impacts by super-Eddington accretors to their environments, it is essential to assure a large enough simulation box and long computational time to avoid any artefacts from numerical settings as much as possible. In
Externí odkaz:
http://arxiv.org/abs/2209.01427
It is one of the biggest issues in black hole (BH) astrophysics how to precisely evaluate BH feedback to its environments. Aiming at studying the unique gas dynamics of super-Eddington flow around supermassive black hole (SMBH) seeds at high redshift
Externí odkaz:
http://arxiv.org/abs/2202.13805
Autor:
Tsunetoe, Yuh, Mineshige, Shin, Kawashima, Tomohisa, Ohsuga, Ken, Akiyama, Kazunori, Takahashi, Hiroyuki R.
For testing different electron temperature ($T_{\rm e}$) prescriptions in general relativistic magnetohydrodynamics (GRMHD) simulations through observations, we propose to utilize linear polarization (LP) and circular polarization (CP) images. We cal
Externí odkaz:
http://arxiv.org/abs/2202.12904
It is widely believed that super-Eddington accretion flow can produce powerful outflow, but where it originates from and how much mass and energy are carried away to which directions? To answer to these questions, we newly perform a large-box, two-di
Externí odkaz:
http://arxiv.org/abs/2101.11028