Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Daisuke Namekata"'
Publikováno v:
CCF Transactions on High Performance Computing. 2:183-195
We overview the current status and future development directions of our framework for developing particle simulator (FDPS). Many of particle-based simulation codes share the same characteristic that the most time-consuming part of the simulation is t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44c5bc2a44df6d7f7e26ca5a6fde9f7e
https://doi.org/10.1007/s42514-020-00020-1
https://doi.org/10.1007/s42514-020-00020-1
Autor:
Junichiro Makino, Keigo Nitadori, Daisuke Namekata, Masaki Iwasawa, Kentaro Nomura, Long Wang, Miyuki Tsubouchi
We describe algorithms implemented in FDPS (Framework for Developing Particle Simulators) to make efficient use of accelerator hardware such as GPGPUs (general-purpose computing on graphics processing units). We have developed FDPS to make it possibl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::886c88acbf485f0431b497091bf0f36c
http://arxiv.org/abs/1907.02290
http://arxiv.org/abs/1907.02290
Autor:
Daisuke Namekata, Masayuki Umemura
We explore the gas dynamics near the dust sublimation radius of active galactic nucleus (AGN). For the purpose, we perform axisymmetric radiation hydrodynamic simulations of a dusty gas disk of radius $\approx 1\,\mathrm{pc}$ around a supermassive bl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df0c0b438a0ab7a134908b824cd3c141
http://arxiv.org/abs/1604.03372
http://arxiv.org/abs/1604.03372
Autor:
Long Wang, Daisuke Namekata, Natsuki Hosono, Junichiro Makino, Ataru Tanikawa, Kentaro Nomura, Takayuki Muranushi, Masaki Iwasawa, Keigo Nitadori
Publikováno v:
Publications of the Astronomical Society of Japan. 70(4):70-70
Numerical simulations based on particle methods have been widely used in various fields including astrophysics. To date, simulation softwares have been developed by individual researchers or research groups in each field, with a huge amount of time a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19cfe89f71b4bacf2a081839bed36116
https://hdl.handle.net/20.500.14094/90007225
https://hdl.handle.net/20.500.14094/90007225
Publikováno v:
The Astrophysical Journal. 691(2):1525-1539
We investigate rapid mass supply process by nested bars in the Galaxy by numerical simulation. We simulate gas flow in the whole galaxy disk with nested bars, which are the outer bar and the inner bar, especially with highly spatial resolution in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ead411dfcb60809f4853f965fa82c22b
http://hdl.handle.net/2115/48499
http://hdl.handle.net/2115/48499
We perform three-dimensional radiation hydrodynamic simulations of uniform dusty gas clouds irradiated by an active galactic nucleus (AGN) to investigate the dependence of evolution of clouds on the ionization parameter $\mathcal{U}$ and the Str{\"o}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9734f9cb32d9180ed1bdc064d9b8cc50
http://arxiv.org/abs/1406.6476
http://arxiv.org/abs/1406.6476
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2012 The Authors Published by Oxford University Press on behalf of The Royal Astronomical Society. All rights reserved.
We investigate the pr
We investigate the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c03cffcc69857082e81ca0aeb69824f
http://arxiv.org/abs/1207.5315
http://arxiv.org/abs/1207.5315
Publikováno v:
Mapping the Galaxy and Nearby Galaxies ISBN: 9780387727677
Gas feeding to the Galactic center is important for active phenomena in the Galactic center. In the Galactic center, there are various active phenomena and related objects, such as many young stars, active x-ray sources, massive molecular gas (3× 10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f86d456188bb9463378459804202d14c
https://doi.org/10.1007/978-0-387-72768-4_63
https://doi.org/10.1007/978-0-387-72768-4_63
Autor:
Daisuke Namekata, Masayuki Umemura
Publikováno v:
Monthly Notices of the Royal Astronomical Society; 7/21/2016, Vol. 460 Issue 1, p980-1018, 39p
Autor:
Daisuke Namekata, Asao Habe
Publikováno v:
The Astrophysical Journal. 731:57
We investigate the gas supply process from a nuclear gas disk to the Galactic center by performing two-dimensional hydrodynamic simulations including self-gravity and radiative cooling. We assume that the gas is supplied to the nuclear gas disk by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::897db5f2568adaf447f14d9566970604
https://doi.org/10.1088/0004-637x/731/1/57
https://doi.org/10.1088/0004-637x/731/1/57