Zobrazeno 1 - 10
of 2 652
pro vyhledávání: '"Miyoshi M"'
Autor:
Li, L. Y., Shima, K., Yamanaka, M., Egawa, T., Takeuchi, T., Miyoshi, M., Ishibashi, S., Uedono, A., Chichibu, S. F.
Publikováno v:
Journal of Applied Physics; 10/28/2022, Vol. 132 Issue 16, p1-10, 10p
We have conducted VLBA phase-referencing monitoring of H2O masers around the red supergiant, S Persei, for six years. We have fitted maser motions to a simple expanding-shell model with a common annual parallax and stellar proper motion, and obtained
Externí odkaz:
http://arxiv.org/abs/1007.4874
Measuring spin of a supermassive black hole at the Galactic centre -- Implications for a unique spin
We determine the spin of a supermassive black hole in the context of discseismology by comparing newly detected quasi-periodic oscillations (QPOs) of radio emission in the Galactic centre, Sagittarius A* (Sgr A*), as well as infrared and X-ray emissi
Externí odkaz:
http://arxiv.org/abs/0906.5423
We report the detection of radio QPOs with structure changes using the Very Long Baseline Array (VLBA) at 43 GHz. We found conspicuous patterned changes of the structure with P = 16.8 +- 1.4, 22.2 +- 1.4, 31.2 +- 1.5, 56.4 +- 6 min, very roughly in a
Externí odkaz:
http://arxiv.org/abs/0906.5511
We report on the high-precision astrometric observations of maser sources around the Galactic Center in the SiO J=1--0 v=1 and 2 lines with the VLBA during 2001 -- 2004. With phase-referencing interferometry referred to the radio continuum source Sgr
Externí odkaz:
http://arxiv.org/abs/0710.1393
Autor:
Hachisuka, K., Brunthaler, A., Menten, K. M., Reid, M. J., Imai, H., Hagiwara, Y., Miyoshi, M., Horiuchi, S., Sasao, T.
Publikováno v:
Astrophys.J.645:337-344,2006
We report phase-referencing VLBA observations of H2O masers near the star-forming region W3(OH) to measure their parallax and absolute proper motions. The measured annual parallax is 0.489 +/- 0.017 milli-arcseconds (2.04 +/- 0.07 kpc), where the err
Externí odkaz:
http://arxiv.org/abs/astro-ph/0512226
Autor:
Miyoshi, M.
Imaging the vicinity of black hole is one of the ultimate goals of VLBI astronomy. The closest massive black hole, SgrA*, located at Galactic center is the leading candidate for such observations. Combined with recent VLBI recording technique and sub
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412289
The most powerful tool for measuring distances within our Galaxy is the annual parallax. We carried out phase-referencing VLBI observations of H$_{2}$O masers in the star forming region W3(OH) with respect to the extragalactic continuum source ICRF 0
Externí odkaz:
http://arxiv.org/abs/astro-ph/0409343
We report the result of an on-going survey for 22 GHz H2O maser emission towards infrared luminous galaxies. The observed galaxies were selected primarily from the IRAS bright galaxy sample. The survey has resulted in the detection of one new maser.
Externí odkaz:
http://arxiv.org/abs/astro-ph/0112061
Autor:
Kuramitsu, M., Kuroiwa, C., Yoshida, H., Miyoshi, M., Okumura, J., Shimizu, H., Narantuya, L., Bat-Ochir, D.
Publikováno v:
Epidemiology and Infection, 2005 Dec 01. 133(6), 1131-1142.
Externí odkaz:
https://www.jstor.org/stable/3865801