Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Shigeru J. Miyoshi"'
Publikováno v:
Publications of the Astronomical Society of Japan. 62:743-754
To investigate the present situation of the merging in the southern outer region of Abell 85, we carried out long (~100 ks) observations with Suzaku, and produced an X-ray hardness ratio map. We found a high hardness ratio peak in the east side of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78afa372952f421d9e09bc126055448d
https://doi.org/10.1093/pasj/62.3.743
https://doi.org/10.1093/pasj/62.3.743
Autor:
Isamu Hatsukade, Alastair C. Edge, Ruediger Kneissl, Guy G. Pooley, Akihiro Harada, Taisuke Tsuruta, Akihiro Furuzawa, Shigeru J. Miyoshi, M. Jones, Yuzuru Tawara, Richard C. Saunders, William F. Grainger, Koujun Yamashita, Keith Grainge
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 357:518-526
We have observed the Sunyaev-Zel'dovich effect in a sample of five moderate-redshift clusters with the Ryle Telescope, and used them in conjunction with X-ray imaging and spectral data from ROSAT and ASCA to measure the Hubble constant. This sample w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4371f55c7b4ad4eb1eee40075c6bc39b
https://doi.org/10.1111/j.1365-2966.2005.08626.x
https://doi.org/10.1111/j.1365-2966.2005.08626.x
Publikováno v:
Progress of Theoretical Physics. 102:51-70
The hierarchical structure of astronomical objects is investigated in the cosmic string scheme with cold dark matter (CDM). A non-linear dark matter potential is formed in the crossing site of three wakes triggered at around zi by moving strings. If
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8803bf5e76f638e3fd493c5bd4cd6a52
https://doi.org/10.1143/ptp.102.51
https://doi.org/10.1143/ptp.102.51
Publikováno v:
International Journal of Modern Physics D. :535-544
We have studied the cosmic microwave background radiation by simulating the cosmic string network induced anisotropies on the sky. The large-angular size simulations are based on the Kaiser–Stebbins effect calculated from full cosmic-string network
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a777498f5fbe39f0e2c046ff2aba31e7
https://doi.org/10.1142/s0218271897000327
https://doi.org/10.1142/s0218271897000327
Autor:
Isamu Hatsukade, Anthony Lasenby, M. Jones, Akihiro Furuzawa, Shigeru J. Miyoshi, Masakazu Matsuura, K. Yamashita, Richard D. E. Saunders, Yuzuru Tawara
Publikováno v:
The Astrophysical Journal. 466:L75-L78
We report the results of ASCA and Ryle Telescope observations of the distant cluster of galaxies A1204. The X-ray image shows that this source is very compact and that the intracluster gas is strongly centrally concentrated. The brightness temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b83c9a886a44da337b7ce92c8f889476
https://doi.org/10.1086/310184
https://doi.org/10.1086/310184
Publikováno v:
The Astrophysical Journal. 454:L81-L84
The number densities of quasars and high-redshift galaxies introduce strict constraints on theories of large-scale structure formation. We compute the comoving space densities of these objects with cosmic string models and compare results with observ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2171cb7e065cd0ad62516c4341696de5
https://doi.org/10.1086/309774
https://doi.org/10.1086/309774
Autor:
Nobuyuki Kawai, Shigeru J. Miyoshi, A. Yoshida, Koujun Yamashita, Shunji Kitamoto, Masaru Matsuoka, H. Nakamura
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 261:353-365
The Japanese X-ray astronomy satellite Ginga has observed Cyg X-3 in high- and low-intensity states. The X-ray spectrum of Cyg X-3 is so variable and complex that no unified model which can well explain all the observed spectra has yet been proposed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2a35908c092644ab79a4db63aa6860b
https://doi.org/10.1093/mnras/261.2.353
https://doi.org/10.1093/mnras/261.2.353
Publikováno v:
Vistas in Astronomy. 37:515-518
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9369341c7a25d001e6a133772cf7dca7
https://doi.org/10.1016/0083-6656(93)90085-x
https://doi.org/10.1016/0083-6656(93)90085-x
Autor:
Shigeru J. Miyoshi, Tetsuya Hara
Publikováno v:
Progress of Theoretical Physics. 83:660-665
It is investigated whether observed large-scale streaming of galaxies represents velocities of dark matter under explosion scenarios. It seeems that, although individual galaxies will not represent motions of dark matter, cluster of galaxies follows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f04736208d1dfd136a6f1c7881b80ef1
https://doi.org/10.1143/ptp.83.660
https://doi.org/10.1143/ptp.83.660
Autor:
Tetsuya Hara, Shigeru J. Miyoshi
Publikováno v:
International Astronomical Union Colloquium. 124:645-649
It has been reported that galaxies in large regions (approx. 10(exp 2) Mpc), including some clusters of galaxies, may be streaming coherently with velocities up to 600 km/sec or more with respect to the rest frame determined by the microwave backgrou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb9d77dcb27c95038887c84aa764eecb
https://doi.org/10.1017/s0252921100005777
https://doi.org/10.1017/s0252921100005777