A 22-year Southern Sky Survey for Transient and Variable Radio Sources using the Molonglo Observatory Synthesis Telescope [PDF]
Monthly 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]
Science, 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
VARIABLE AND TRANSIENT RADIO SOURCES IN THE FIRST SURVEY [PDF]
The Astrophysical Journal, 2011 A comprehensive search for variable and transient radio sources has been conducted using ~55,000 snapshot images of the FIRST survey. We present an analysis leading to the discovery of 1,627 variable and transient objects down to mJy levels over a wide range of timescales (few minutes to years).
Thyagarajan, Nithyanandan +3 more
openaire +2 more sources
Identifying transient and variable sources in radio images [PDF]
Astronomy and Computing, 2019 With the arrival of a number of wide-field snapshot image-plane radio transient surveys, there will be a huge influx of images in the coming years making it impossible to manually analyse the datasets. Automated pipelines to process the information stored in the images are being developed, such as the LOFAR Transients Pipeline, outputting light curves ...
Rowlinson, A. +18 more
openaire +3 more sources
TEMPORAL SMEARING OF TRANSIENT RADIO SOURCES BY THE INTERGALACTIC MEDIUM [PDF]
The 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
A Population Study of the Radio Emission of Fast Blue Optical Transients
The Astrophysical Journal, 2023 Despite the fact that the progenitor of fast blue optical transients (FBOTs) is still a subject of debate, FBOTs are sometimes suggested to originate from the core collapse of ultra-stripped stars and be powered by a spinning-down neutron star. Following
Jian-Feng Liu +3 more
doaj +1 more source
Direct Imaging Digital Lens for Transient Radio Source Survey [PDF]
International 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
FAST Observations of FRB 20220912A: Burst Properties and Polarization Characteristics
The Astrophysical Journal, 2023 We report the observations of FRB 20220912A using the Five-hundred-meter Aperture Spherical radio Telescope. We conducted 17 observations totaling 8.67 hr and detected a total of 1076 bursts with an event rate up to 390 hr ^−1 .
Yong-Kun Zhang +23 more
doaj +1 more source
Radio variable and transient sources on minute time-scales in the ASKAP pilot surveys
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We present results from a radio survey for variable and transient sources on 15-min time-scales, using the Australian SKA Pathfinder (ASKAP) pilot surveys. The pilot surveys consist of 505 h of observations conducted at around 1 GHz observing frequency, with a total sky coverage of 1476 deg2.
Yuanming Wang +14 more
openaire +2 more sources
CIRCULARLY POLARIZED EMISSION FROM THE TRANSIENT BURSTING RADIO SOURCE GCRT J1745 – 3009 [PDF]
The Astrophysical Journal, 2010 17 pages, 3 figures, accepted for publication in ApJ ...
Roy, Subhashis +5 more
openaire +2 more sources