Results 91 to 100 of about 1,087,488 (286)

Design of a Wideband Radio Telescope [PDF]

2007 IEEE Aerospace Conference, 2007
A wideband Radio Telescope is being designed for use in the Goldstone Apple Valley Radio Telescope program. It uses an existing 34-meter antenna retrofitted with a tertiary offset mirror placed at the apex of the main reflector. It can be rotated to use two feeds that cover the 1.2 to 14 GHz band.
Imbriale, William A., Weinreb, Sander, Mani, Hamdi   +2 more
openaire   +4 more sources

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

A new search for distant radio galaxies in the Southern hemisphere -- III. Optical spectroscopy and analysis of the MRCR--SUMSS sample

, 2009
We have compiled a sample of 234 ultra-steep-spectrum(USS)-selected radio sources in order to find high-redshift radio galaxies (HzRGs). The sample is in the southern sky at -40 deg < DEC < -30 deg which is the overlap region of the 408-MHz Revised ...
Allen, Allen, Antonucci, Appenzeller, Athreya, B. M. Gaensler, Baker, Baker, Barthel, Barthel, Becker, Bhatnagar, Bicknell, Binette, Binette, Blundell, Blundell, Blundell, Bock, Bornancini, Bower, Broderick, Brookes, Brookes, Bryant, Burgess, C. De Breuck, Carilli, Cohen, Condon, Croft, Croston, Croton, Cruz, De Breuck, De Breuck, De Breuck, De Breuck, De Breuck, De Breuck, De Lucia, Dekker, Dopita, Eales, El Bouchefry, Feulner, Fioc, Gillingham, H. M. Johnston, Hambly, Helfand, Hobbs, Hopkins, Hopkins, J. J. Bryant, J. W. Broderick, Jarvis, Kapahi, Kellermann, Klamer, Klamer, Kodama, Kurk, Kurk, Laing, Large, Lehnert, Lilly, Madau, Martini, Mauch, McCarthy, McCarthy, Nelson, Owen, Pentericci, Pentericci, Prestage, R. W. Hunstead, Rees, Reuland, Riley, Rocca-Volmerange, Rodgers, Röttgering, Seymour, Silk, Skrutskie, Springel, Stanford, Steidel, Thomas, Urry, van Breugel, van Ojik, Vanden Berk, Venemans, Venemans, Villar-Martín, Villar-Martín, White, Willott, Willott   +102 more
core   +1 more source

Search for possible exomoons with FAST telescope

, 2017
Our knowledge of the Solar System, encourages us to beleive that we might expect exomoons to be present around some of the known exoplanets. With present hardware and existing optical astronomy methods we shall not be able to find exomoons at least 10 ...
Lukic, Dragan
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

Radio galaxies with the Cherenkov Telescope Array [PDF]

Astroparticle Physics, 2017
Misaligned AGN (MAGNs), i.e., radio-loud AGNs with the jet not pointing directly towards us, represent a new class of GeV emitters revealed by the Fermi space telescope. Although they comprise only a small fraction of the high-energy sources, MAGNs are extremely interesting objects offering a different perspective to study high-energy processes with ...
Jürgen Knödlseder, R. Angioni, R. Angioni, Paola Grandi, Cristian Vignali, Eleonora Torresi   +5 more
openaire   +3 more sources

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

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

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