Results 51 to 60 of about 1,099,186 (283)

The latest on Apertif [PDF]

, 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, van Cappellen, Wim, Verheijen, Marc   +2 more
core   +3 more sources

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

A Conceptual Investigation of a Large Radio Telescope Support Point Number Effect on Its Pointing Accuracy

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, Kaitong Ma, Congsi Wang, Peiyuan Lian, Yan Wang, Yuefei Yan, Qian Xu, Yuanpeng Zheng, Na Wang   +8 more
doaj   +1 more source

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., Galvin, T., Wong, G. F., Draskovic, D., De Horta, A. Y., Crawford, E. J., Filipovic, M. D.   +6 more
doaj   +3 more sources

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

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., Filipović, M. D., Crawford, E. J., De Horta, A. Y., White, G. L., Stootman, F. H.   +5 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 , V. V. Zakharenko, E. A. Alekseev, O. M. Reznichenko, I. O. Kulahin, V. V. Budnikov , V. I. Prisiazhnii , A. V. Poikhalo, V. V. Voytyuk, V. N. Mamarev , V. V. Ozhinskyi, V. P. Vlasenko , V. M. Chmil , I. K. Sunduchkov, M. M. Berdar , V. I. Lebed, M. I. Palamar, A. V. Chaikovskii, Yu. V. Pasternak, M. A. Strembitskii, M. P. Natarov, S. O. Steshenko, V. V. Glamazdin, O. I. Shubnyi, A. O. Kyrylenko, D. Yu. Kulyk   +25 more
doaj   +1 more source

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, N. Kanekar, J. Chengalur, R. Sharma, M. D. Villiers, B. Kumar, B. Bhattacharyya, V. Bhalerao, R. Bombale, K. Buch, B. Dixit, A. Ghalame, Y. Gupta, P. Hande, S. Hande, K. Hariharan, R. Kale, S. Lokhande, S. Phakatkar, A. Prajapati, S. Rai, P. Raybole, J. Roy, A. Shaikh, S. S. N. C. F. R. Astrophysics, India, South African astronomical Observatory, S. Africa   +27 more
semanticscholar   +1 more source

PSR B0329+54: Statistics of Substructure Discovered within the Scattering Disk on RadioAstron Baselines of up to 235,000 km

, 2016
We discovered fine-scale structure within the scattering disk of PSR B0329+54 in observations with the RadioAstron ground-space radio interferometer.
Andrianov, A. S., Bartel, N., Gwinn, C. R., Johnson, M. D., Joshi, B. C., Kardashev, N. S., Karuppusamy, R., Kovalev, Y. Y., Kramer, M., Popov, M. V., Rudnitskii, A. G., Safutdinov, E. R., Shishov, V. I., Smirnova, T. V., Soglasnov, V. A., Steinmassl, S. F., Zensus, J. A., Zhuravlev, V. I.   +17 more
core   +1 more source

The UTMOST: A hybrid digital signal processor transforms the MOST [PDF]

, 2017
The Molonglo Observatory Synthesis Telescope (MOST) is an 18,000 square meter radio telescope situated some 40 km from the city of Canberra, Australia. Its operating band (820-850 MHz) is now partly allocated to mobile phone communications, making radio ...
Bailes, M., Barr, E. D., Bateman, T., Bhandari, S., Bunton, J. D., Caleb, M., Campbell-Wilson, D., Farah, W., Flynn, C., Gaensler, B., Green, A. J., Hunstead, R. W., Jameson, A., Jankowski, F., Keane, E. F., Krishnan, V. Venkatraman, Murphy, Tara, O'Neill, M., Oslowski, S., Parthasarathy, A., Ravi, V., Rosado, P., Temby, D.   +22 more
core   +2 more sources