Results 31 to 40 of about 119,846 (313)
Remote downconversion scheme for uplink configuration in radio/fiber systems [PDF]
, 2005 The authors present a novel technology for uplink transmission in radio over fiber (RoF) distribution systems. The technique employs remote downconversion of the uplink data to intermediate frequency (IF) in the base station (BS).
Barry, Liam P. +3 more
core +1 more source
Extended Radio Emission in the Perhipheral Regions of the Shapley Concentration Core
Galaxies, 2017 The Shapley Concentration (SC) is a galaxy supercluster (few tens of degrees) in the Local Universe (<z>∼0.048) which is currently undergoing cluster mergers and group accretion.
Tiziana Venturi +6 more
doaj +1 more source
Multiband Study of Radio Sources of the RCR Catalogue with Virtual Observatory Tools
Open Astronomy, 2012 We present early results of our multiband study of the RATAN Cold Revised (RCR) catalogue obtained from seven cycles of the “Cold” survey carried with the RATAN-600 radio telescope at 7.6 cm in 1980-1999, at the declination of the SS 433 source.
Zhelenkova O. P. +3 more
doaj +1 more source
Extragalactic Astrophysics With Next-Generation CMB Experiments
Frontiers in Astronomy and Space Sciences, 2019 Planck, SPT, and ACT surveys have clearly demonstrated that Cosmic Microwave Background (CMB) experiments, while optimized for cosmological measurements, have made important contributions to the field of extragalactic astrophysics in the last decade ...
Gianfranco De Zotti +14 more
doaj +1 more source
ON THE EVOLUTION OF THE CORES OF RADIO SOURCES AND THEIR EXTENDED RADIO EMISSION [PDF]
The Astrophysical Journal, 2011 10 pages, 9 figures and 1 table, accepted for publication in the Astrophysical ...
Yuan, Zunli, Wang, Jiancheng
openaire +2 more sources
Radio Galaxy Zoo: cosmological alignment of radio sources [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We study the mutual alignment of radio sources within two surveys, FIRST and TGSS. This is done by producing two position angle catalogues containing the preferential directions of respectively $30\,059$ and $11\,674$ extended sources distributed over more than $7\,000$ and $17\,000$ square degrees. The identification of the sources in the FIRST sample
O. Contigiani +8 more
openaire +3 more sources
The Astrophysical Journal, 2023 FRB 20180916B is a repeating fast radio burst (FRB) with a 16.3 day periodicity in its activity. In this study, we present morphological properties of 60 FRB 20180916B bursts detected by CHIME/FRB between 2018 August and 2021 December.
Ketan R. Sand +33 more
doaj +1 more source
Radio properties of FIRST radio sources at 1 mJy [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 9 pages, 6 figures, to appear in ...
Magliocchetti M +2 more
openaire +3 more sources
The Astrophysical JournalFollow-up studies of persistent emission from fast radio burst (FRB) sources are critical for understanding their elusive emission mechanisms and the nature of their progenitors.
Arvind Balasubramanian +2 more
doaj +1 more source
3C 236: Radio Source, Interrupted? [PDF]
The Astronomical Journal, 2001 We present new HST STIS/MAMA near-UV images and archival WFPC2 V and R band images which reveal the presence of four star forming regions in an arc along the edge of the dust lane in the giant (4 Mpc) radio galaxy 3C236. Two of the star forming regions are relatively young with ages of order 1E7 yr, while the other two are older with ages of order 1E8 -
O'Dea, Christopher P. +7 more
openaire +2 more sources