A transient radio source consistent with a merger-triggered core collapse supernova [PDF]
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]
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
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
FAST Observations of FRB 20220912A: Burst Properties and Polarization Characteristics
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
Direct Imaging Digital Lens for Transient Radio Source Survey [PDF]
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
Calculation and Uncertainty of Fast Radio Burst Structure Based on Smoothed Data
Studies of the time-domain structure of fast radio bursts (FRBs) require an accurate estimate of the FRB dispersion measure in order to recover the intrinsic burst shape.
Adrian T. Sutinjo +9 more
doaj +1 more source
Subarcminute Localization of 13 Repeating Fast Radio Bursts Detected by CHIME/FRB
We report on improved sky localizations of 13 repeating fast radio bursts (FRBs) discovered by CHIME/FRB via the use of interferometric techniques on channelized voltages from the telescope.
Daniele Michilli +29 more
doaj +1 more source
Limits on Simultaneous and Delayed Optical Emission from Well-localized Fast Radio Bursts
We present the largest compilation to date of optical observations during and following fast radio bursts (FRBs). The data set includes our dedicated simultaneous and follow-up observations, as well as serendipitous archival survey observations, for a ...
Daichi Hiramatsu +8 more
doaj +1 more source
CIRCULARLY POLARIZED EMISSION FROM THE TRANSIENT BURSTING RADIO SOURCE GCRT J1745 – 3009 [PDF]
17 pages, 3 figures, accepted for publication in ApJ ...
Roy, Subhashis +5 more
openaire +2 more sources
MULTI-MESSENGER ASTRONOMY OF GRAVITATIONAL-WAVE SOURCES WITH FLEXIBLE WIDE-AREA RADIO TRANSIENT SURVEYS [PDF]
We explore opportunities for multi-messenger astronomy using gravitational waves (GWs) and prompt, transient low-frequency radio emission to study highly energetic astrophysical events. We review the literature on possible sources of correlated emission of gravitational waves and radio transients, highlighting proposed mechanisms that lead to a short ...
Cregg C. Yancey +12 more
openaire +3 more sources

