Results 31 to 40 of about 1,097,617 (347)
The Astrophysical Journal, 2023 Fast radio bursts (FRBs) are brief, energetic, typically extragalactic flashes of radio emission whose progenitors are largely unknown. Although studying the FRB population is essential for understanding how these astrophysical phenomena occur, such ...
Kaitlyn Shin +20 more
doaj +1 more source
Symposium - International Astronomical Union, 1981 The understanding of the nature of strong radio emission associated with galaxies and quasars has significantly increased in the last five years. A large contribution to this increase has been obtained from the arcsec and milli-arcsec mapping of radio sources which show remarkable features.
openaire +1 more source
The Astrophysical Journal, 2023 Among more than 800 known fast radio bursts (FRBs), only two, namely FRB 20121102A and FRB 20190520B, are confirmed to be associated with persistent radio sources (PRSs).
Xian Zhang +14 more
doaj +1 more source
The ATESP 5 GHz radio survey. II. Physical properties of the faint radio population [PDF]
, 2006 One of the most debated issues about sub-mJy radio sources, which are responsible for the steepening of the 1.4 GHz source counts, is the origin of their radio emission.
de Ruiter, H. R. +7 more
core +5 more sources
An Injection System for the CHIME/FRB Experiment
The Astronomical Journal, 2023 Dedicated surveys searching for fast radio bursts (FRBs) are subject to selection effects that bias the observed population of events. Software injection systems are one method of correcting for these biases by injecting a mock population of synthetic ...
Marcus Merryfield +21 more
doaj +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
Symposium - International Astronomical Union, 1982 Flux variations are a common feature of flat spectrum compact extra-galactic radio sources. Detailed analysis and quantitative comparisons with theoretical models (e.g. van der Laan, 1966) are difficult due to the complex characteristics of the flux variations, which generally appear to consist of different outbursts blended together in time ...
R. Fanti, L. Padrielli, M. Salvati
openaire +1 more source
, 2003 A new sample of radio sources, with the designated name CENSORS (A Combined EIS-NVSS Survey Of Radio Sources), has been defined by combining the NRAO VLA Sky Survey (NVSS) at 1.4 GHz with the ESO Imaging Survey (EIS) Patch D, a 3 by 2 degree region of ...
Allington-Smith +72 more
core +1 more source
The Relationship Between Beam Power and Radio Power for Classical Double Radio Sources [PDF]
, 2012 Beam power is a fundamental parameter that describes, in part, the state of a supermassive black hole system. Determining the beam powers of powerful classical double radio sources requires substantial observing time, so it would be useful to determine ...
Baum, Stefi A. +4 more
core +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