Results 41 to 50 of about 134,290 (279)
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
Flux density measurements of a complete sample of faint blazars [PDF]
, 2011 We performed observations with the Effelsberg 100-m radio telescope to measure flux densities and polarised emission of sources selected from the "Deep X-ray Radio Blazar Survey" (DXRBS) to better define their spectral index behaviour in the radio band ...
Abdo +22 more
core +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
, 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
Optical spectra of radio planetary nebulae in the small Magellanic cloud [PDF]
Serbian Astronomical Journal, 2008 We present preliminary results from spectral observations of four (4) candidate radio sources co-identified with known planetary nebulae (PNe) in the Small Magellanic Cloud (SMC).
Payne J.L. +5 more
doaj +3 more sources
New 20-cm Radio-Continuum Study of the Small Magellanic Cloud: Part I - Images [PDF]
Serbian Astronomical Journal, 2011 We present and discuss new high-sensitivity and resolution radio-continuum images of the Small Magellanic Cloud (SMC) at $lambda$=20~cm($u$=1.4~GHz).
Payne J. L. +6 more
doaj +3 more sources
THE RT-32 RADIO TELESCOPE CONSTRUCTION BASED ON THE MARK-4B ANTENNA SYSTEM. 3. LOCAL OSCILLATORS AND SELF-NOISE OF THE RECEIVING SYSTEM [PDF]
Radio Physics and Radio Astronomy, 2020 Purpose: High resolution investigation of spectral lines of space sources requires low intrinsic noise of the radio telescope receiving system. It is provided with both input cryogenic amplifiers and low phase noise of local oscillators. To make spectral
O. M. Ulyanov +25 more
doaj +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
Scheduling and calibration strategy for continuous radio monitoring of 1700 sources every three days [PDF]
, 2014 The Owens Valley Radio Observatory 40 meter telescope is currently monitoring a sample of about 1700 blazars every three days at 15 GHz, with the main scientific goal of determining the relation between the variability of blazars at radio and gamma-rays ...
Max-Moerbeck, Walter
core +2 more sources
Halide Perovskite Radiation Detectors: Conventional Imaging Applications and New Opportunities
Advanced Functional Materials, EarlyView.Organic–inorganic hybrid halide perovskite (OIHP) semiconductors, owing to their exceptional optoelectronic properties, are emerging as promising next‐generation integrated radiation detectors for applications in medical radiodiagnosis and healthcare monitoring.
Dou Zhao +4 more
wiley +1 more source