Zobrazeno 1 - 10
of 29
pro vyhledávání: '"B. G. Piner"'
Autor:
José L. Gómez, Filippo D'Ammando, Rocco Lico, Marcello Giroletti, Antonio Fuentes, B. G. Piner, Nicholas R. MacDonald, Jun Liu, M. Orienti
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
© R. Lico et al. 2020 Licence Creative Commons Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdb65d00293999a84d3caa43c9d8eff4
Autor:
Tuomas Savolainen, S. S. Scott, K. Nilsson, A. Wilhelm, Walter Max-Moerbeck, S. O'Brien, Alasdair E. Gent, Nahee Park, A. N. Otte, K. Ragan, R. A. Ong, G. H. Sembroski, K. Pfrang, Merja Tornikoski, T. J. Williamson, Wei Cui, Sebastian Kiehlmann, R. Shang, Marita Krause, Anushka Udara Abeysekara, Philip G. Edwards, Amy Furniss, P. Kaaret, A. Pichel, Gernot Maier, Alexander B. Pushkarev, D. Horan, Anne Lähteenmäki, Jamie Holder, V. V. Vassiliev, B. G. Piner, Lucy Fortson, A. Brill, P. Moriarty, Karlen Shahinyan, Tarek M. Hassan, Denis Bernard, J. H. Buckley, G. Hughes, M. Pohl, I. Sushch, M. Kertzman, A. C. S. Readhead, J. Valverde, Robert Brose, Wystan Benbow, Q. Feng, John L. Quinn, Daniel Nieto, Stephen Fegan, M. Nievas-Rosillo, D. Ribeiro, M. Buchovecky, Giuliana Noto, T. B. Humensky, Jenni Jormanainen, F. Krennrich, Talvikki Hovatta, M. J. Lang, A. Petrashyk, R. R. Prado, V. Fallah Ramazani, J. P. Finley, Jodi Christiansen, P. Wilcox, Olivier Hervet, A. J.R. Weinstein, A. D. Falcone, Matthew L. Lister, D. S. Hanna, N. Kelley-Hoskins, Ralph Bird, I. Sadeh, David A. Williams, Gordon T. Richards, A. Archer, E. Roache, D. B. Kieda, Orel Gueta, L. O. Takalo, G. H. Gillanders, Yuri Y. Kovalev, P. T. Reynolds, E. Lindfors, Marcos Santander, Reshmi Mukherjee, C. Giuri, R. M. Wells, E. Pueschel
Publikováno v:
The astrophysical journal / 1 Part 1 891(2), 170-(2020). doi:10.3847/1538-4357/ab765d
The Astrophysical Journal
Astrophys.J.
Astrophys.J., 2020, 891, pp.170. ⟨10.3847/1538-4357/ab765d⟩
The Astrophysical Journal
Astrophys.J.
Astrophys.J., 2020, 891, pp.170. ⟨10.3847/1538-4357/ab765d⟩
Blazars are known for their variability on a wide range of timescales at all wavelengths. Most studies of TeV gamma-ray blazars focus on short timescales, especially during flares. With a decade of observations from the Fermi-LAT and VERITAS, we pres
Autor:
Zsolt Paragi, James E. J. Lovell, L. Mosoni, Jun Yang, W. K. Scott, Z.-Q. Shen, Kaj Wiik, Leonid I. Gurvits, Philip G. Edwards, G. V. Coldwell, A. R. Taylor, B. G. Piner, Edward B. Fomalont, Yasuhiro Murata, Steven Tingay, Richard Dodson, Yoshiharu Asaki, S. Fodor, Maria Rioja, Shinji Horiuchi, Sándor Frey, Hisashi Hirabayashi, Matthew L. Lister, G. A. Moellenbrock
Publikováno v:
Department of Physics and Astronomy Faculty Publications
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
Publikováno v:
The Astronomical Journal. 133:2357-2388
(Abridged) We present the results of an analysis of relativistic jet apparent speeds from VLBI images in the Radio Reference Frame Image Database (RRFID). The images are snapshot VLBI images at 8 and 2 GHz using the VLBA plus up to ten additional ant
Publikováno v:
The Astrophysical Journal. 640:196-203
We have measured peak apparent speeds of 25.6 +/- 7.0c, 25.6 +/- 4.4c, and 28.2 +/- 6.6c in the jets of 0235+164, 0827+243, and 1406-076, respectively, based on six epochs of high-sensitivity VLBA observations at 22 and 43 GHz during 2002 and 2003 (H
Autor:
B. G. Piner, Philip G. Edwards
Publikováno v:
The Astrophysical Journal. 579:L67-L70
We have combined very long baseline interferometry (VLBI) data from several programs in order to resolve differences in reported parsec-scale jet speeds for the TeV gamma-ray source Markarian 501. Data from the Very Long Baseline Array (VLBA) 2 cm su
Autor:
John Reynolds, Hideyuki Kobayashi, P. G. Edwards, J. F. H. Quick, P. M. McCulloch, James E. J. Lovell, M. E. Costa, B. G. Piner, Anastasios Tzioumis, George D. Nicolson, Hisashi Hirabayashi, David L. Jauncey, David W. Murphy, Richard Dodson, Steven Tingay, Robert A. Preston, Katsunori Shibata
Publikováno v:
The Astrophysical Journal Supplement Series. 141:311-335
We present images from VLBI Space Observatory Programme (VSOP) observations of 14 compact extragalactic southern hemisphere radio sources, including a description of the observations, the data reduction techniques, and the parameters of the resulting
Autor:
Dayton L. Jones, Matthew L. Lister, Robert A. Preston, David W. Murphy, Steven Tingay, B. G. Piner
Publikováno v:
The Astrophysical Journal. 554:948-963
We present images from a space-VLBI survey using the facilities of the VLBI Space Observatory Programme (VSOP), drawing our sample from the well-studied Pearson-Readhead survey of extragalactic radio sources. Our survey has taken advantage of long sp
Autor:
S. J. Tingay, R. A. Preston, M. L. Lister, B. G. Piner, D. W. Murphy, D. L. Jones, D. L. Meier, T. J. Pearson, A. C. S. Readhead, H. Hirabayashi, Y. Murata, H. Kobayashi, M. Inoue
Publikováno v:
The Astrophysical Journal. 549:L55-L58
We have used VSOP space very long baseline interferometry observations to measure the brightness temperature distribution of a well-defined sub-set of the Pearson-Readhead sample of extragalactic radio sources. VLBI which is restricted to Earth-diame
Publikováno v:
Symposium - International Astronomical Union. 205:44-47
The physical conditions in the inner parsec of accretion disks believed to orbit the central black holes in active galactic nuclei can be probed by imaging the absorption of background radio emission by ionized gas in the disk. High angular resolutio