Zobrazeno 1 - 10
of 1 616
pro vyhledávání: '"Hirabayashi H"'
Autor:
Gwinn, C. R., Johnson, M. D., Reynolds, J. E., Jauncey, D. L., Tzioumis, A. K., Dougherty, S., Carlson, B., Del Rizzo, D., Hirabayashi, H., Kobayashi, H., Murata, Y., Edwards, P. G., Quick, J. F. H., Flanagan, C. S., McCulloch, P. M.
Publikováno v:
Astrophysical Journal (2012) 758, 6
We compare the noise in interferometric measurements of the Vela pulsar from ground- and space-based antennas with theoretical predictions. The noise depends on both the flux density and the interferometric phase of the source. Because the Vela pulsa
Externí odkaz:
http://arxiv.org/abs/1208.0039
Autor:
Gwinn, C. R., Johnson, M. D., Reynolds, J. E., Jauncey, D. L., Tzioumis, A. K., Hirabayashi, H., Kobayashi, H., Murata, Y., Edwards, P. G., Dougherty, S., Carlson, B., del Rizzo, D., Quick, J. F. H., Flanagan, C. S., McCulloch, P. M.
Publikováno v:
Astrophysical Journal (2012), 758, 7
We present measurements of the linear diameter of the emission region of the Vela pulsar at observing wavelength lambda=18 cm. We infer the diameter as a function of pulse phase from the distribution of visibility on the Mopra-Tidbinbilla baseline. A
Externí odkaz:
http://arxiv.org/abs/1208.0040
Autor:
Dodson, R., Fomalont, E. B., Wiik, K., Horiuchi, S., Hirabayashi, H., Edwards, P. G., Murata, Y., Asaki, Y., Moellenbrock, G. A., Scott, W. K., Taylor, A. R., Gurvits, L. I., Paragi, Z., Frey, S., Shen, Z. -Q., Lovell, J. E. J., Tingay, S. J., Rioja, M. J., Fodor, S., Lister, M. L., Mosoni, L., Coldwell, G., Piner, B. G., Yang, J.
In February 1997, the Japanese radio astronomy satellite HALCA was launched to provide the space-bourne element for the VLBI Space Observatory Programme (VSOP) mission. Approximately twenty-five percent of the mission time was dedicated to the VSOP S
Externí odkaz:
http://arxiv.org/abs/0710.5707
Autor:
Dodson, R., Horiuchi, S., Scott, W., Fomalont, E., Paragi, Z., Frey, S., Wiik, K., Hirabayashi, H., Edwards, P., Murata, Y., Moellenbrock, G., Gurvits, L., Tingay, S.
In February 1997 the Japanese radio astronomy satellite HALCA was launched to provide the space-borne element for the VSOP mission. HALCA provided linear baselines three-times greater than that of ground arrays, thus providing higher resolution and h
Externí odkaz:
http://arxiv.org/abs/astro-ph/0612373
Autor:
Frey, S., Gurvits, L. I., Gabuzda, D. C., Salter, C. J., Altschuler, D. R., Perillat, P., Aller, M. F., Aller, H. D., Hirabayashi, H., Davis, M. M.
Publikováno v:
Publ.Astron.Soc.Jap. 58 (2006) 217-222
In 1999, the highly compact and variable BL Lac object AO 0235+164 was identified as the highest brightness temperature active galactic nucleus observed with the VLBI Space Observatory Programme (VSOP), with T_B > 5.8 x 10^{13} K. The sub-milliarcsec
Externí odkaz:
http://arxiv.org/abs/astro-ph/0509528
Autor:
Hirabayashi, H., Murata, Y., Edwards, P. G., Asaki, Y., Mochizuki, N., Inoue, M., Umemoto, T., Kameno, S., Kono, Y.
A second generation near-term space VLBI mission, VSOP-2, is being planned for a launch in 2010 or soon after. The scientific objectives are very high angular resolution imaging of astrophysically exotic regions, including the cores, jets, and accret
Externí odkaz:
http://arxiv.org/abs/astro-ph/0501020
As presented by Hirabayashi et al. (2004) these proceedings, the VSOP-2 mission is currently being planned. Various kinds of developments are being made for the misson, and here we introduce the large antenna, fast switching scheme using CMG, low noi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412690
Autor:
Shen, Z. -Q., Shang, L. -L., Cai, H. -B., Chen, X., Jiang, D. R., Chen, Y. -J., Liu, X., Yang, R., Kameno, S., Hirabayashi, H.
Publikováno v:
Astrophys.J.622:811-815,2005
We present the results from the first quasi-simultaneous multi-frequency (2.3, 5.0, 8.4 and 15 GHz) Very Long Baseline Interferometry (VLBI) observations of a compact steep spectrum (CSS) superluminal source 3C138. For the first time, the spectral di
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412549
Autor:
Horiuchi, S., Fomalont, E. B., Scott, W. K., Taylor, A. R., Lovell, J. E. J., Moellenbrock, G. A., Dodson, R., Murata, Y., Hirabayashi, H., Edwards, P. G., Gurvits, L. I., Shen, Z-Q.
Publikováno v:
Astrophys.J. 616 (2004) 110-122
The VSOP (VLBI Space Observatory Programme) mission is a Japanese-led project to study radio sources with sub-milliarcsec angular resolution, using an orbiting 8-m telescope on board the satellite HALCA with a global earth-based array of telescopes.
Externí odkaz:
http://arxiv.org/abs/astro-ph/0407069
Autor:
Scott, W. K., Fomalont, E. B., Horiuchi, S., Lovell, J. E. J., Moellenbrock, G. A., Dodson, R. G., Edwards, P. G., Coldwell, G. V., Fodor, S., Frey, S., Gurvits, L. I., Hirabayashi, H., Lister, M. L., Mosoni, L., Murata, Y., Paragi, Z., Piner, B. G., Shen, Z. -Q., Taylor, A. R., Tingay, S. J.
The VSOP mission is a Japanese-led project to study radio sources with sub-milliarcsec resolution using an orbiting 8 m telescope, HALCA, along with global arrays of Earth-based telescopes. Approximately 25% of the observing time is devoted to a surv
Externí odkaz:
http://arxiv.org/abs/astro-ph/0407041