Results 11 to 20 of about 140,620 (283)

A 22-year Southern Sky Survey for Transient and Variable Radio Sources using the Molonglo Observatory Synthesis Telescope [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
We describe a 22-year survey for variable and transient radio sources, performed with archival images taken with the Molonglo Observatory Synthesis Telescope (MOST).
Alcock   +80 more
core   +3 more sources

A transient radio source consistent with a merger-triggered core collapse supernova [PDF]

open access: yesScience, 2021
Radio evidence of a stellar merger Core collapse supernovae occur when a massive star exhausts its fuel and explodes. Theorists have predicted that a similar explosion could occur if an evolved massive star merges with a compact companion, such as a neutron star. Dong et al . have identified a radio source
D. Z. Dong   +12 more
openaire   +4 more sources

TEMPORAL SMEARING OF TRANSIENT RADIO SOURCES BY THE INTERGALACTIC MEDIUM [PDF]

open access: yesThe Astrophysical Journal, 2013
The temporal smearing of impulsive radio events at cosmological redshifts probes the properties of the ionized Inter-Galactic Medium (IGM). We relate the degree of temporal smearing and the profile of a scattered source to the evolution of turbulent structure in the IGM as a function of redshift.
Macquart, Jean-Pierre, Koay, Jun Yi
openaire   +3 more sources

Direct Imaging Digital Lens for Transient Radio Source Survey [PDF]

open access: yesInternational Astronomical Union Colloquium, 1991
AbstractFFT based 2D Dygital Lens is discussed comparing with Fourier synthesis. The sensitivity of constructing Large Array will be 50mJy. Precise manipuration of the radiation field is possible in it.
Tsuneaki Daishido   +8 more
openaire   +1 more source

Nasu 1.4 GHz Interferometer Transient Radio Source Survey and Improvement in Detection of Radio Sources

open access: yesJournal of Physics: Conference Series, 2006
We have surveyed 1.4GHz transient radio sources in Nasu Pulsar Observatory. To investigate such sources, both immediacy and accuracy are severely maintained. We have developed Data Transfer System and improved antenna control system. Now we have received the fringe data from transient radio source candidates.
Nobuo Matsumura   +7 more
openaire   +1 more source

CIRCULARLY POLARIZED EMISSION FROM THE TRANSIENT BURSTING RADIO SOURCE GCRT J1745 – 3009 [PDF]

open access: yesThe Astrophysical Journal, 2010
17 pages, 3 figures, accepted for publication in ApJ ...
Roy, Subhashis   +5 more
openaire   +2 more sources

On the use of variability time-scales as an early classifier of radio transients and variables [PDF]

open access: yes, 2017
We have shown previously that a broad correlation between the peak radio luminosity and the variability time-scales, approximately L ~ t^5, exists for variable synchrotron emitting sources and that different classes of astrophysical source occupy ...
Fender, R. P.   +3 more
core   +3 more sources

The Allen Telescope Array Pi GHz Sky Survey I. Survey Description and Static Catalog Results for the Bootes Field [PDF]

open access: yes, 2010
The Pi GHz Sky Survey (PiGSS) is a key project of the Allen Telescope Array. PiGSS is a 3.1 GHz survey of radio continuum emission in the extragalactic sky with an emphasis on synoptic observations that measure the static and time-variable properties of ...
Abazajian   +88 more
core   +5 more sources

A Dictionary Approach to Identifying Transient RFI

open access: yes, 2017
As radio telescopes become more sensitive, the damaging effects of radio frequency interference (RFI) become more apparent. Near radio telescope arrays, RFI sources are often easily removed or replaced; the challenge lies in identifying them.
Czech, Daniel   +2 more
core   +1 more source

A mechanism for fast radio bursts [PDF]

open access: yes, 2015
Fast radio bursts are mysterious transient sources likely located at cosmological distances. The derived brightness temperatures exceed by many orders of magnitude the self-absorption limit of incoherent synchrotron radiation, implying the operation of a
del Valle, Maria Victoria   +2 more
core   +3 more sources

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