Results 81 to 90 of about 1,099,186 (283)

No bursts detected from FRB121102 in two 5-hour observing campaigns with the Robert C. Byrd Green Bank Telescope [PDF]

, 2018
Here, we report non-detection of radio bursts from Fast Radio Burst FRB 121102 during two 5-hour observation sessions on the Robert C. Byrd 100-m Green Bank Telescope in West Virginia, USA, on December 11, 2017, and January 12, 2018.
Croft, Steve, DeBoer, David, Gajjar, Vishal, Hallinan, Gregg, Hellbourg, Greg, Isaacson, Howard, Lebofsky, Matt, Lee, Kejia, Liu, Zhiyong, Lynch, Ryan, MacMahon, David H. E., Men, Yunpeng, Price, Danny C., Rosenthal, Lee, Siemion, Andrew, Xu, Yonghua   +15 more
core   +1 more source

CREATING THE RT-32 RADIO TELESCOPE ON THE BASIC OF MARK-4B ANTENNA SYSTEM. 1. MODERNIZATION PROJECT AND FIRST RESULTS

Radio Physics and Radio Astronomy, 2019
Purpose: Creating a radio telescope based on the MARK-4B antenna system being developed for telecommunication applications, determining the possibilities of using the broadband multirange operation of a beam wave-guided antenna system and to evaluate ...
O. M. Ulyanov, O. M. Reznichenko, V. V. Zakharenko, A. V. Antyufeyev, A. M. Korolev, O. M. Patoka, V. I. Prisiazhnii, A. V. Poichalo, V. V. Voityuk, V. N. Mamarev, V. V. Ozhinskii, V. P. Vlasenko, V. M. Chmil, V. I. Lebed, M. I. Palamar, A. V. Chaikovskii, Yu. V. Pasternak, M. A. Strembitskii, M. P. Natarov, S. O. Steshenko, V. V. Glamazdyn, A. S. Shubny, A. A. Kirilenko, D. Y. Kulik, A. A. Konovalenko, L. M. Lytvynenko, Ya. S. Yatskiv   +26 more
doaj   +1 more source

Status and perspectives of the radio detection of highenergy cosmic rays [PDF]

EPJ Web of Conferences, 2019
Status and perspectives of the radio detection of high-energy cosmic rays are discussed with emphasis on recent developments at the LOFAR radio telescope and the Pierre Auger Observatory.
Hörandel Jörg R.
doaj   +1 more source

Limits on the quiescent radio emission from the black hole binaries GRO J1655-40 and XTE J1550-564

, 2010
We present the results of radio observations of the black hole binaries GRO J1655-40 and XTE J1550-564 in quiescence, with the upgraded Australia Telescope Compact Array. Neither system was detected.
Bell, M. E., Calvelo, D. E., Corbel, S., Fender, R. P., Gallo, E., Lewis, F., Maccarone, T. J., Russell, D. M., Tzioumis, A. K.   +8 more
core   +1 more source

Active Surface Compensation for Large Radio Telescope Antennas

, 2018
With the development of radio telescope antennas with large apertures, high gain, and wide frequency bands, compensation methods, such as mechanical or electronic compensation, are obviously essential to ensure the electrical performance of antennas that
Congsi Wang, Haihua Li, Kang Ying, Qian Xu, Na Wang, B. Duan, Wei Gao, Lan Xiao, Duan Yuhu   +8 more
semanticscholar   +1 more source

An Observation Scheduling System for Radio Telescope Array

Applied Sciences
The 4 × 4.5 m radio telescope array at Guizhou Normal University is an astronomical observation facility in operation, mainly aiming at the scientific detection of pulsars and fast radio bursts.
Chi Ma, Rushuang Zhao, Baoqiang Lao, Wenjun Xiao, Hui Liu, Ziyi You   +5 more
doaj   +1 more source

RADIO TELESCOPE URAN-4 AND THE PROBLEM OF RADIO INTERFERENCE

Odessa Astronomical Publications, 2018
The URAN-4 decameter radio telescope, which is located in thevillageofMayakiof theOdessaregion, is an element of system of the URAN radio telescopes (Ukrainian Radiointerferometer of theAcademyofSciences).
V. V. Galanin, O. A. Lytvynenko, V. G. Derevyagin, R. O. Kravetz   +3 more
doaj   +1 more source

CLASS B0827+525: `Dark lens' or binary radio-loud quasar? [PDF]

, 2000
We present radio, optical, near-infrared and spectroscopic observations of the source B0827+525. We consider this source as the best candidate from the Cosmic Lens All-Sky Survey (CLASS) for a `dark lens' system or binary radio-loud quasar.
Blandford, R. D., Browne, I. W. A., de Bruyn, A. G., Fassnacht, C. D., Helbig, P., Hoekstra, H., Jackson, N., Koopmans, L. V. E., Marlow, D. R., Myers, S. T., Pearson, T. J., Readhead, A. C. S., Rusin, D., Wilkinson, P. N., Xanthopoulos, E.   +14 more
core   +2 more sources

Giant Metrewave Radio Telescope Observations of Head–Tail Radio Galaxies [PDF]

, 2017
We present results from a study of seven large known head–tail radio galaxies based on observations using the Giant Metrewave Radio Telescope at 240 and 610 MHz. These observations are used to study the radio morphologies and distribution of the spectral
B. Sebastian, D. Lal, A. P. Rao
semanticscholar   +1 more source

A decametric wavelength radio telescope for interplanetary scintillation observations [PDF]

A phased array, electrically steerable radio telescope (with a total collecting area of 18 acres), constructed for the purpose of remotely sensing electron density irregularity structure in the solar wind, is presented.
Cronyn, W. M., Shawhan, S. D.
core   +1 more source