Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Sawada-Satoh S."'
Publikováno v:
EPJ Web of Conferences, Vol 61, p 08007 (2013)
We present the frequent VLBI monitoring results of blazar OJ 287 at 22 GHz band using the VLBI Exploration of Radio Astrometry (VERA) from 2010 November to 2012 September. Time interval of the monitoring is typically once or twice per month. The 22-G
Externí odkaz:
https://doaj.org/article/cc21b24e0ba649c28715f111524c0e01
Autor:
Hada, K., Giroletti, M., Kino, M., Giovannini, G., D'Ammando, F., Cheung, C. C., Beilicke, M., Nagai, H., Doi, A., Akiyama, K., Honma, M., Niinuma, K., Casadio, C., Orienti, M., Krawczynski, H., Gomez, J. L., Sawada-Satoh, S., Koyama, S., Cesarini, A., Nakahara, S., Gurwell, M. A.
The nearby radio galaxy M87 offers a unique opportunity for exploring the connection between gamma-ray production and jet formation at an unprecedented linear resolution. However, the origin and location of the gamma-rays in this source is still elus
Externí odkaz:
http://arxiv.org/abs/1502.05177
Autor:
Hada, K., Giroletti, M., Kino, M., Giovannini, G., D'Ammando, F., Cheung, C. C., Beilicke, M., Nagai, H., Doi, A., Akiyama, K., Honma, M., Niinuma, K., Casadio, C., Orienti, M., Krawczynski, H., Gomez, J. L., Sawada-Satoh, S., Koyama, S., Cesarini, A., Nakahara, S., Gurwell, M. A.
The nearby radio galaxy M87 offers a unique opportunity for exploring the connection between gamma-ray production and jet formation at an unprecedented linear resolution. However, the origin and location of the gamma-rays in this source is still elus
Externí odkaz:
http://arxiv.org/abs/1412.6861
Autor:
Sugiyama, K., Fujisawa, K., Doi, A., Honma, M., Kobayashi, H., Murata, Y., Motogi, K., Niinuma, K., Ogawa, H., Wajima, K., Sawada-Satoh, S., Ellingsen, S. P.
We have measured the internal proper motions of the 6.7 GHz methanol masers associated with Cepheus A (Cep A) HW2 using Very Long Baseline Interferometery (VLBI) observations. We conducted three epochs of VLBI monitoring observations of the 6.7 GHz m
Externí odkaz:
http://arxiv.org/abs/1312.7235
Autor:
Sawada-Satoh, S.
Publikováno v:
NARIT Conference Series, Vol.1, 2013, p.538
The KVN+VERA array is a joint VLBI project of seven VLBI stations spread throughout Korea and Japan. Since the first fringe detection in 2008, the early phase observations of the KVN+VERA have been carried out every several months. Currently, two obs
Externí odkaz:
http://arxiv.org/abs/1310.2705
Publikováno v:
Astron.Nachr.330:249-252,2009
We present multi-frequency simultaneous VLBA observations at 15, 22 and 43 GHz towards the nucleus of the nearby radio galaxy NGC 1052. These three continuum images reveal a double-sided jet structure, whose relative intensity ratios imply that the j
Externí odkaz:
http://arxiv.org/abs/0902.4068
Autor:
Chou, Richard C. Y., Peck, A. B., Lim, J., Matsushita, S., Muller, S., Sawada-Satoh, S., Dinh-V-Trung, Boone, F., Henkel, C.
Publikováno v:
2007 ApJ v668 n2
We have mapped the central region of NGC 4945 in the $J=2\to1$ transition of $^{12}$CO, $^{13}$CO, and C$^{18}$O, as well as the continuum at 1.3 mm, at an angular resolution of $5\farc \times 3\farc$ with the Submillimeter Array. The relative proxim
Externí odkaz:
http://arxiv.org/abs/0709.3960
We present 12CO (J=2-1) observations towards the central region of the Seyfert 2 galaxy NGC 4258 with the Submillimeter Array (SMA). Our interferometric maps show two arm-like elongated components along the major axis of the galaxy, with no strong nu
Externí odkaz:
http://arxiv.org/abs/astro-ph/0612303
We report results of pentachromatic VLBI survey for 18 GHz-peaked spectrum sources. Spectral fitting at every pixel across five frequencies allows us to illustrate distribution of optical depth in terms of free-free absorption or synchrotron self abs
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412674
Publikováno v:
Publ. Astron. Soc. Japan, vol.53, No.2 (2001)
A subparsec-scale dense plasma torus around an active galactic nucleus (AGN) is unveiled. We report on very-long-baseline interferometry (VLBI) observations at 2.3, 8.4, and 15.4 GHz towards the active galaxy NGC 1052. The convex spectra of the doubl
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104039