Results 51 to 60 of about 1,087,488 (286)
A Construction of the Real Time Monitoring System of the Solar Radio Disturbance: II. 2.8GHz Radio Receiver and Radio Environment [PDF]
Journal of Astronomy and Space Sciences, 2008 As the second step of the real time monitoring system of the solar radio disturbance, we constructed a 2.8 GHz radio receiver with 500 MHz bandwith.
Yonggi Kim +3 more
doaj +1 more source
, 2010 We describe a Phased Array Feed (PAF) system, called Apertif, which will be installed in the Westerbork Synthesis Radio Telescope (WSRT). The aim of Apertif is, at frequencies from 1.0 to 1.7 GHz, to increase the instantaneous field of view of the WSRT 8
Oosterloo, Tom +2 more
core +3 more sources
A Construction of the Real Time Monitoring System of the Solar Radio Disturbance [PDF]
Journal of Astronomy and Space Sciences, 2004 As the first step of the real time monitoring system of the solar radio disturbance, we constructed the control system of the solar radio telescope.
Joh-Na Yoon +3 more
doaj +1 more source
Polarimetry of 600 pulsars from observations at 1.4 GHz with the Parkes radio telescope [PDF]
, 2017 Over the past 13 years, the Parkes radio telescope has observed a large number of pulsars using digital filterbank backends with high time and frequency resolution and the capability for Stokes recording.
S. Johnston, M. Kerr
semanticscholar +1 more source
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole [PDF]
, 2019 When surrounded by a transparent emission region, black holes are expected to reveal a dark shadow caused by gravitational light bending and photon capture at the event horizon.
The Event Horizon Telescope Collaboration
semanticscholar +1 more source
Giant Equatorial Radio Telescope [PDF]
International Astronomical Union Colloquium, 1984 AbstractA giant radio telescope for observing galactic and extragalactic radio sources at metre wavelengths is proposed. By locating a parabolic cylindrical antenna at a site close to the Equator such that its axis lies parallel to earth's axis, it is possible to construct a large collecting area economically.
S. Sukumar, Govind Swarup, B. Hidayat
openaire +3 more sources
The expanded Giant Metrewave Radio Telescope [PDF]
Monthly notices of the Royal Astronomical Society, 2018 With 30 antennas and a maximum baseline length of 25 km, the Giant Metrewave Radio Telescope (GMRT) is the premier low-frequency radio interferometer today.
N. Patra +27 more
semanticscholar +1 more source
First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multi-wavelength Observations, Data Processing, and Calibration [PDF]
, 2023 We present Event Horizon Telescope (EHT) 1.3 mm measurements of the radio source located at the position of the supermassive black hole Sagittarius A* (Sgr A*), collected during the 2017 April 5--11 campaign.
The Event Horizon Telescope Collaboration
semanticscholar +1 more source
International Journal of Antennas and Propagation, 2020 The purpose of this paper is to investigate a large radio telescope support point number effect on its pointing accuracy and provide a useful guideline for the large radio telescope design engineer. In a large radio telescope system, the azimuth track is
Song Xue +8 more
doaj +1 more source
Commensal observing with the Allen Telescope array: software command and control
, 2010 The Allen Telescope Array (ATA) is a Large-Number-Small-Diameter radio telescope array currently with 42 individual antennas and 5 independent back-end science systems (2 imaging FX correlators and 3 time domain beam formers) located at the Hat Creek ...
Ackermann, Robert +8 more
core +1 more source