Zobrazeno 1 - 10
of 770
pro vyhledávání: '"Sasao T"'
Autor:
Rioja, M. J., Dodson, R., Porcas, R. W., Ferris, D., Reynolds, J., Sasao, T., Schilizzi, R. T.
We revisit the "Cluster-Cluster" or multi-view Very-Long-Baseline-Interferometry (VLBI) technique from the perspective of its synergy with the multi-beam features inherent in the Australian Square Kilometer Array Pathfinder (ASKAP)and its potential t
Externí odkaz:
http://arxiv.org/abs/0909.4590
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:
Honma, M., Bushimata, T., Choi, Y. K., Fujii, T., Hirota, T., Horiai, K., Imai, H., Inomata, N., Ishitsuka, J., Iwadate, K., Jike, T., Kameya, O., Kamohara, R., Kan-ya, Y., Kawaguchi, N., Kijima, M., Kobayashi, H., Kuji, S., Kurayama, T., Manabe, S., Miyaji, T., Nakagawa, A., Nakashima, K., Oh, C. S., Omodaka, T., Oyama, T., Rioja, M., Sakai, S., Sato, K., Sasao, T., Shibata, K. M., Shimizu, R., Sora, K., Suda, H., Tamura, Y., Yamashita, K.
We report on the multi-epoch observations of H2O maser emission in star forming region OH 43.8-0.1 carried out with VLBI Exploration of Radio Astrometry (VERA). The large-scale maser distributions obtained by single-beam VLBI mapping reveal new maser
Externí odkaz:
http://arxiv.org/abs/astro-ph/0505180
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
Autor:
Honma, M., Choi, Y. K., Bushimata, T., Fujii, T., Hirota, T., Horiai, K., Imai, H., Inomata, N., Ishitsuka, J., Iwadate, K., Jike, T., Kameya, O., Kamohara, R., Kan-ya, Y., Kawaguchi, N., Kobayashi, H., Kuji, S., Kurayama, T., Manabe, S., Miyaji, T., Nakagawa, A., Nakashima, K., Nagayoshi, R., Omodaka, T., Oyama, T., Rioja, M., Sakai, S., Sakakibara, S., Sato, K., Sasao, T., Shibata, K. M., Shimizu, R., Sora, K., Suda, H., Tamura, Y., Yamashita, K.
We report on a strong outburst of the W49N H2O maser observed with VERA. Single-dish monitoring with VERA 20 m telescopes detected a strong outburst of the maser feature at V_LSR = -30.7 km/s in 2003 October. The outburst had a duration of ~100 days
Externí odkaz:
http://arxiv.org/abs/astro-ph/0405140
Autor:
Honma, M., Fujii, T., Hirota, T., Horiai, K., Iwadate, K., Jike, T., Kameya, O., Kamohara, R., Kan-ya, Y., Kawaguchi, K., Kobayashi, H., Kuji, S., Kurayama, T., Manabe, S., Miyaji, T., Nakashima, K., Omodaka, T., Oyama, T., Sakai, S., Sakakibara, S., Sato, K., Sasao, T., Shibata, K. M., Shimizu, R., Suda, H., Tamura, Y., Ujihara, H., Yoshimura, A.
We present the results of first dual-beam observations with VERA (VLBI Exploration of Radio Astrometry). The first dual-beam observations of a pair of H2O maser sources W49N and OH43.8-0.1 have been carried out on 2002 May 29 and July 23, and fringes
Externí odkaz:
http://arxiv.org/abs/astro-ph/0306060
Autor:
Sudou, H., Omodaka, T., Imai, H., Sasao, T., Takaba, H., Nishio, M., Hasegawa, W., Nakajima, J.
Water masers around an AGB star, IRC+60169, were observed at four epochs using the Japanese VLBI networks. The distribution of the maser features is limited in a thick-shell region, which has inner and outer expansion velocities of 7 km/s and 14 km/s
Externí odkaz:
http://arxiv.org/abs/astro-ph/0208081
Autor:
Sudou, H., Taniguchi, Y., Ohyama, Y., Kameno, S., Sawada-Satoh, S., Inoue, M., Kaburaki, O., Sasao, T.
In order to investigate the genesis of powerful radio jet, we have mapped the central 10 pc region of the nearby radio galaxy NGC 6251 with a 0.2 pc resolution using Very Long Baseline Interferometer (VLBI) at two radio frequencies, 5 GHz and 15 GHz,
Externí odkaz:
http://arxiv.org/abs/astro-ph/0008173
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