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研究成果 2000 2019

  • 754 引用
  • 16 h指数
  • 41 記事
  • 4 会議での発言
  • 2 Conference article
  • 1 評論記事
2019
1 引用 (Scopus)

2D MHD simulations of the state transitions of XRay binaries taking into account thermal conduction

Nakamura, K. E., Machida, M. & Matsumoto, R., 1 21 2019, : : Galaxies. 7, 1, 22.

研究成果: ジャーナルへの寄稿記事

magnetohydrodynamic simulation
conduction
conductive heat transfer
radii
accretion disks
1 引用 (Scopus)

Faraday depolarization effects in spiral galaxies

Machida, M., Akahori, T., Nakamura, K. E., Nakanishi, H. & Haverkorn, M., 1 12 2019, : : Galaxies. 7, 1, 15.

研究成果: ジャーナルへの寄稿記事

spiral galaxies
depolarization
magnetic fields
interstellar magnetic fields
threads
1 引用 (Scopus)

Radio broad-band visualization of global three-dimensional magnetohydrodynamical simulations of spiral galaxies - II. Faraday depolarization from 100 MHz to 10 GHz

Machida, M., Akahori, T., Nakamura, K. E., Nakanishi, H. & Haverkorn, M., 1 1 2019, : : Monthly Notices of the Royal Astronomical Society. 482, 3, p. 3394-3402 9 p.

研究成果: ジャーナルへの寄稿記事

spiral galaxies
depolarization
visualization
radio
broadband
1 引用 (Scopus)

Two-temperature magnetohydrodynamics simulations of propagation of semi-relativistic jets

Ohmura, T., Machida, M., Nakamura, K., Kudoh, Y., Asahina, Y. & Matsumoto, R., 1 11 2019, : : Galaxies. 7, 1, 14.

研究成果: ジャーナルへの寄稿記事

magnetohydrodynamic simulation
electron energy
ion temperature
shock
propagation
1 引用 (Scopus)

Workshop summary "The Power of Faraday Tomography"

Haverkorn, M., Machida, M. & Akahori, T., 1 24 2019, : : Galaxies. 7, 1, 26.

研究成果: ジャーナルへの寄稿記事

Japan
tomography
magnetic fields
2018
12 引用 (Scopus)

Cosmic magnetism in centimeter- and meter-wavelength radio astronomy

Kahori, T., Nakanishi, H., Sofue, Y., Fujita, Y., Ichiki, K., Ideguchi, S., Kameya, O., Kudoh, T., Kudoh, Y., Machida, M., Miyashita, Y., Ohno, H., Ozawa, T., Takahashi, K., Takizawa, M. & Yamazaki, D. G., 1 1 2018, : : Publications of the Astronomical Society of Japan. 70, 1, R2.

研究成果: ジャーナルへの寄稿評論記事

radio astronomy
astronomy
Milky Way Galaxy
radio
galaxies
1 引用 (Scopus)

Faraday tomography of the SS433 jet termination region

Sakemi, H., Machida, M., Ohmura, T., Ideguchi, S., Miyashita, Y., Takahashi, K., Akahori, T., Akamatsu, H., Nakanishi, H., Kurahara, K. & Farnes, J., 12 9 2018, : : Galaxies. 6, 4, 137.

研究成果: ジャーナルへの寄稿記事

tomography
nebulae
line of sight
cosmic rays
telescopes
2 引用 (Scopus)

Magnetic field analysis of the bow and terminal shock of the SS 433 jet

Sakemi, H., Machida, M., Akahori, T., Nakanishi, H., Akamatsu, H., Kurahara, K. & Farnes, J., 3 1 2018, : : Publications of the Astronomical Society of Japan. 70, 2, psy003.

研究成果: ジャーナルへの寄稿記事

bows
tomography
shock
magnetic field
rings
3 引用 (Scopus)

Radio broadband visualization of global three-dimensional magnetohydrodynamical simulations of spiral galaxies - I. Faraday rotation at 8GHz

Machida, M., Akahori, T., Nakamura, K. E., Nakanishi, H. & Haverkorn, M., 10 11 2018, : : Monthly Notices of the Royal Astronomical Society. 480, 1, p. 17-25 9 p.

研究成果: ジャーナルへの寄稿記事

spiral galaxies
Faraday effect
visualization
radio
magnetic field
2016

Investigating magnetic activity in the galactic centre by global MHD simulation

Suzuki, T. K., Fukui, Y., Torii, K., Machida, M., Matsumoto, R. & Kakiuchi, K., 1 1 2016, : : Proceedings of the International Astronomical Union. 11, p. 137-140 4 p.

研究成果: ジャーナルへの寄稿記事

parallelograms
magnetic field
magnetic fields
simulation
amplification

Vertical flows and structures excited by magnetic activity in the Galactic center region

Kakiuchi, K., Suzuki, T. K., Fukui, Y., Torii, K., Machida, M. & Matsumoto, R., 1 1 2016, : : Proceedings of the International Astronomical Union. 11, p. 220-221 2 p.

研究成果: ジャーナルへの寄稿記事

diagram
diagrams
vertical motion
simulation
data simulation
2015
5 引用 (Scopus)

Stochastic non-circular motion and outflows driven by magnetic activity in the Galactic bulge region

Suzuki, T. K., Fukui, Y., Torii, K., Machida, M. & Matsumoto, R., 1 1 2015, : : Monthly Notices of the Royal Astronomical Society. 454, 3, p. 3049-3059 11 p.

研究成果: ジャーナルへの寄稿記事

galactic bulge
outflow
parallelograms
magnetic field
radial flow
2013
23 引用 (Scopus)

Dynamo activities driven by magnetorotational instability and the parker instability in galactic gaseous disks

Machida, M., Nakamura, K. E., Kudoh, T., Akahori, T., Sofue, Y. & Matsumoto, R., 2 10 2013, : : Astrophysical Journal. 764, 1, 81.

研究成果: ジャーナルへの寄稿記事

magnetic field
magnetic fields
magnetic flux
escape
symmetry
2012
1 引用 (Scopus)

Global structure of optically thin, magnetically supported, two-temperature, black hole accretion disks

Oda, H., Machida, M., Nakamura, K. E., Matsumoto, R. & Narayan, R., 2 25 2012, : : Publications of the Astronomical Society of Japan. 64, 1

研究成果: ジャーナルへの寄稿記事

accretion disks
accretion
advection
luminosity
temperature
2011
9 引用 (Scopus)

High excitation molecular gas in the galactic center loops; 12CO (J = 2-1 and J = 3-2) observations

Kudo, N., Torii, K., Machida, M., Davis, T. A., Tsutsumi, K., Fujishita, M., Moribe, N., Yamamoto, H., Okuda, T., Kawamura, A., Mizuno, N., Onishi, T., Maezawa, H., Mizuno, A., Tanaka, K., Yamaguchi, N., Ezawa, H., Takahashi, K., Nozawa, S., Matsumoto, R. および1人, Fukui, Y., 2 25 2011, : : Publications of the Astronomical Society of Japan. 63, 1, p. 171-197 27 p.

研究成果: ジャーナルへの寄稿記事

molecular gases
gas
excitation
spatial resolution
heating
2010
21 引用 (Scopus)

A detailed observational study of molecular loops 1 and 2 in the galactic center

Torii, K., Kudo, N., Fujishita, M., Kawase, T., Yamamoto, H., Kawamura, A., Mizuno, N., Onishi, T., Mizuno, A., Machida, M., Takahashi, K., Nozawa, S., Matsumoto, R. & Fukui, Y., 10 25 2010, : : Publications of the Astronomical Society of Japan. 62, 5, p. 1307-1332 26 p.

研究成果: ジャーナルへの寄稿記事

dust
gas
erg
kinetic energy
kinematics
14 引用 (Scopus)

Temperature and density in the foot points of the molecular loops in the Galactic Center; Analysis of multi-J transitions of 12CO (J = 1-0, 3-2, 4-3, 7-6), 13CO (J = 1-0), and C18O (J = 1-0)

Torii, K., Kudo, N., Fujishita, M., Kawase, T., Okuda, T., Yamamoto, H., Kawamura, A., Mizuno, N., Onishi, T., MacHida, M., Takahashi, K., Nozawa, S., Matsumoto, R., Ott, J., Tanaka, K., Yamaguchi, N., Ezawa, H., Stutzki, J., Bertoldi, F., Koo, B. C. および5人, Bronfman, L., Burton, M., Benz, A. O., Ogawa, H. & Fukui, Y., 2010, : : Publications of the Astronomical Society of Japan. 62, 3, p. 675-695 21 p.

研究成果: ジャーナルへの寄稿記事

flotation
temperature
gas
heating
gases
8 引用 (Scopus)

The primordial origin model of magnetic fields in spiral galaxies

Sofue, Y., MacHida, M. & Kudoh, T., 10 25 2010, : : Publications of the Astronomical Society of Japan. 62, 5, p. 1191-1201 11 p.

研究成果: ジャーナルへの寄稿記事

spiral galaxies
magnetic field
magnetic fields
composite materials
configurations
32 引用 (Scopus)

Thermal equilibria of optically thin, magnetically supported, two-temperature, black hole accretion disks

Oda, H., MacHida, M., Nakamura, K. E. & Matsumoto, R., 1 1 2010, : : Astrophysical Journal. 712, 1, p. 639-652 14 p.

研究成果: ジャーナルへの寄稿記事

accretion disks
accretion
electron
magnetic field
cooling
2009
10 引用 (Scopus)

Discovery of molecular loop 3 in the Galactic center: Evidence for a positive-velocity magnetically floated loop towards L = 355°-359°

Fujishita, M., Torii, K., Kudo, N., Kawase, T., Yamamoto, H., Kawamura, A., Mizuno, N., Onishi, T., Mizuno, A., Machida, M., Takahashi, K., Nozawa, S., Matsumoto, R. & Fukui, Y., 2009, : : Publications of the Astronomical Society of Japan. 61, 5, p. 1039-1053 15 p.

研究成果: ジャーナルへの寄稿記事

gas
erg
kinetic energy
dome
explosion
25 引用 (Scopus)

Formation of galactic center magnetic loops

Machida, M., Matsumoto, R., Nozawa, S., Takahashi, K., Fukui, Y., Kudo, N., Torii, K., Yamamoto, H., Fujishita, M. & Tomisaka, K., 1 1 2009, : : Publications of the Astronomical Society of Japan. 61, 3, p. 411-420 10 p.

研究成果: ジャーナルへの寄稿記事

gas
simulation
hydrodynamics
gravity
magnetic field
13 引用 (Scopus)

Similarity between the molecular loops in the Galactic center and the solar chromospheric arch filaments

Takahashi, K., Nozawa, S., Matsumoto, R., Machida, M., Fukui, Y., Kudo, N., Torii, K., Yamamoto, H. & Fujishita, M., 2009, : : Publications of the Astronomical Society of Japan. 61, 5, p. 957-969 13 p.

研究成果: ジャーナルへの寄稿記事

arches
arch
filaments
magnetohydrodynamics
gas
20 引用 (Scopus)

The Polish doughnuts revisited: I. the angular momentum distribution and equipressure surfaces

Qian, L., Abramowicz, M. A., Fragile, P. C., Horák, J., MacHida, M. & Straub, O., 5 1 2009, : : Astronomy and Astrophysics. 498, 2, p. 471-477 7 p.

研究成果: ジャーナルへの寄稿記事

angular momentum
accretion disks
entropy
accretion
distribution
23 引用 (Scopus)

Thermal equilibria of magnetically supported black hole accretion disks

Oda, H., Machida, M., Nakamura, K. E. & Matsumoto, R., 1 1 2009, : : Astrophysical Journal. 697, 1, p. 16-28 13 p.

研究成果: ジャーナルへの寄稿記事

accretion disks
accretion
advection
magnetic field
oscillation
2008
21 引用 (Scopus)

Excitation of low-frequency QPOs in black-hole accretion flows

Machida, M. & Matsumoto, R., 1 1 2008, : : Publications of the Astronomical Society of Japan. 60, 3, p. 613-626 14 p.

研究成果: ジャーナルへの寄稿記事

accretion
low frequencies
excitation
outflow
gas

Global MHD simulations of galactic gas disks

Matsumoto, R., Nishikori, H., Tanaka, M. & Machida, M., 1 1 2008, : : Astrophysics and Space Science Proceedings. 202419, p. 71-78 8 p.

研究成果: ジャーナルへの寄稿Conference article

Magnetohydrodynamics
Gases
Magnetic fields
magnetic field
gases

Steady models of magnetically supported black hole accretion disks

Oda, H., Machida, M., Nakamura, K. E. & Matsumoto, R., 12 1 2008, Astrophysics of Compact Objects - International Conference on Astrophysics of Compact Objects. p. 408-410 3 p. (AIP Conference Proceedings; 巻数 968).

研究成果: 著書/レポートタイプへの貢献会議での発言

accretion disks
cooling
thermal instability
radiation pressure
bremsstrahlung
2007
21 引用 (Scopus)

Steady models of optically thin, magnetically supported black hole accretion disks

Oda, H., Machida, M., Nakamura, K. E. & Matsumoto, R., 1 1 2007, : : Publications of the Astronomical Society of Japan. 59, 2, p. 457-465 9 p.

研究成果: ジャーナルへの寄稿記事

accretion disks
accretion
magnetic field
thermal instability
transition layers
2006
62 引用 (Scopus)

Formation of magnetically supported disks during hard-to-soft transitions in black hole accretion flows

Machida, M., Nakamura, K. E. & Matsumoto, R., 1 1 2006, : : Publications of the Astronomical Society of Japan. 58, 1, p. 193-202 10 p.

研究成果: ジャーナルへの寄稿記事

accretion
cooling
timescale
guy wires
gas pressure
28 引用 (Scopus)
gravitational fields
amplification
magnetic field
magnetic fields
simulation
oscillation
accretion
low frequencies
oscillations
simulation
57 引用 (Scopus)

Molecular loops in the galactic center: Evidence for magnetic flotation

Fukui, Y., Yamamoto, H., Fujishita, M., Kudo, N., Torii, K., Nozawa, S., Takahashi, K., Matsumoto, R., Machida, M., Kawamura, A., Yonekura, Y., Mizuno, N., Onishi, T. & Mizuno, A., 10 6 2006, : : Science. 314, 5796, p. 106-109 4 p.

研究成果: ジャーナルへの寄稿記事

Gases
Heating
Temperature

Molecular loops in the Galactic centre; Evidence for magnetic floatation accelerating molecular gas

Yamamoto, H., Fukui, Y., Fujishita, M., Torii, K., Kudo, N., Nozawa, S., Takahashi, K., Matsumoto, R., Machida, M., Kawamura, A., Yonekura, Y., Mizuno, N., Onishi, T. & Mizuno, A., 8 1 2006, : : Proceedings of the International Astronomical Union. 2, S237, 1 p.

研究成果: ジャーナルへの寄稿記事

Telescopes
molecular gases
Foot
Gases
gas

Sawtooth-like oscillations of black hole accretion disks

Matsumoto, R. & Machida, M., 8 1 2006, : : Proceedings of the International Astronomical Union. 2, S238, p. 37-42 6 p.

研究成果: ジャーナルへの寄稿記事

accretion disks
oscillation
accretion
oscillations
Rotating disks

Steady models of optically thin, magnetically supported two-temperature accretion disks around a black hole

Oda, H., Nakamura, K. E., Machida, M. & Matsumoto, R., 8 1 2006, : : Proceedings of the International Astronomical Union. 2, S238, p. 421-422 2 p.

研究成果: ジャーナルへの寄稿記事

accretion disks
accretion
luminosity
Compton effect
cooling
2005

Global three-dimensional MHD simulations of galactic gaseous disks

Nishikori, H., MacHida, M. & Matsumoto, R., 9 28 2005, MAGNETIC FIELDS IN THE UNIVERSE: From Laboratory and Stars to Primordial Structures. p. 786-791 6 p. (AIP Conference Proceedings; 巻数 784).

研究成果: 著書/レポートタイプへの貢献会議での発言

gravitational fields
magnetic fields
magnetohydrodynamic simulation
simulation
dark matter

Magnetohydrodynamic simulations of the wiggle instability in spiral galaxies

Tanaka, M., Wada, K., Machida, M., Matsumoto, R. & Miyaji, S., 9 28 2005, MAGNETIC FIELDS IN THE UNIVERSE: From Laboratory and Stars to Primordial Structures. p. 792-797 6 p. (AIP Conference Proceedings; 巻数 784).

研究成果: 著書/レポートタイプへの貢献会議での発言

magnetohydrodynamic simulation
spiral galaxies
Kelvin-Helmholtz instability
shock
magnetic fields
2004
2 引用 (Scopus)

Global 3D MHD simulations of optically thin black hole accretion disks

Matsumoto, R., Machida, M. & Nakamura, K., 1 1 2004, : : Progress of Theoretical Physics Supplement. 155, p. 124-131 8 p.

研究成果: ジャーナルへの寄稿記事

accretion disks
simulation
magnetohydrodynamic simulation
current sheets
relativistic effects
20 引用 (Scopus)

Global structures of optically thin black hole accretion flows obtained from direct magnetohydrodynamic simulations

Machida, M., Nakamura, K. & Matsumoto, R., 1 1 2004, : : Publications of the Astronomical Society of Japan. 56, 4, p. 671-679 9 p.

研究成果: ジャーナルへの寄稿記事

magnetohydrodynamic simulation
magnetohydrodynamics
accretion
simulation
magnetic field
1 引用 (Scopus)

Time variabilities of optically thin black hole accretion disks reproduced by 3D MHD simulations

Machida, M. & Matsumoto, R., 1 1 2004, : : Progress of Theoretical Physics Supplement. 155, p. 371-372 2 p.

研究成果: ジャーナルへの寄稿記事

accretion disks
frequency ranges
low frequencies
magnetohydrodynamic simulation
simulation
2003
98 引用 (Scopus)

Global three-dimensional magnetohydrodynamic simulations of black hole accretion disks: X-ray flares in the plunging region

Machida, M. & Matsumoto, R., 3 1 2003, : : Astrophysical Journal. 585, 1 I, p. 429-442 14 p.

研究成果: ジャーナルへの寄稿記事

magnetohydrodynamic simulation
magnetohydrodynamics
accretion disks
flares
accretion
2002
11 引用 (Scopus)

Gravitational-wave radiation from magnetized accretion disks

Mineshige, S., Hosokawa, T., Machida, M. & Matsumoto, R., 1 1 2002, : : Publications of the Astronomical Society of Japan. 54, 5, p. 655-660 6 p.

研究成果: ジャーナルへの寄稿記事

accretion disks
gravitational waves
electromagnetic radiation
accretion
supernovae
2001
55 引用 (Scopus)

Convection-dominated, magnetized accretion flows into black holes

Machida, M., Matsumoto, R. & Mineshige, S., 2001, : : Publication of the Astronomical Society of Japan. 53, 1

研究成果: ジャーナルへの寄稿記事

convection
accretion
flow structure
simulation
radiation
2000
1 引用 (Scopus)

Computational magnetohydrodynamics of turbulence, dynamos, and jet formation in differentially rotating astrophysical disks

Matsumoto, R., Machida, M., Hayashi, M. & Shibata, K., 1 1 2000, : : Progress of Theoretical Physics Supplement. 138, p. 632-637 6 p.

研究成果: ジャーナルへの寄稿記事

rotating generators
magnetohydrodynamics
astrophysics
turbulence
magnetic fields

Global magneto-hydrodynamic simulations of differentially rotating accretion disk by astrophysical rotational plasma simulator

Machida, M., Matsumoto, R., Miyaji, S., Nakamura, K. E. & Tonooka, H., 1 1 2000, High Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings. Tanaka, H., Valero, M., Kitsuregawa, M. & Joe, K. (版). Springer Verlag, p. 328-335 8 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 1940).

研究成果: 著書/レポートタイプへの貢献会議での発言

Accretion Disks
Rotating Disk
Rotating disks
Hydrodynamics
Simulator
112 引用 (Scopus)

Global simulations of differentially rotating magnetized disks: Formation of low-β filaments and structured coronae

Machida, M., Hayashi, M. R. & Matsumoto, R., 3 20 2000, : : Astrophysical Journal. 532, 1 PART 2

研究成果: ジャーナルへの寄稿記事

rotating disks
coronas
corona
filaments
magnetic field

Plasma simulator for rotating astrophysical objects

Nakamura, K. E., Matsumoto, R., Machida, M. & Chou, W., 12 1 2000, : : Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias. 9, p. 99-100 2 p.

研究成果: ジャーナルへの寄稿Conference article

simulators
simulator
astrophysics
modules
plasma
38 引用 (Scopus)

Temporal 1/fα fluctuations from fractal magnetic fields in black-hole accretion flow

Kawaguchi, T., Mineshige, S., Machida, M., Matsumoto, R. & Shibata, K., 1 1 2000, : : Publications of the Astronomical Society of Japan. 52, 1, p. L1-L4

研究成果: ジャーナルへの寄稿記事

frequency dependence
fractals
accretion
magnetic field
magnetic fields