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Fast radio bursts (FRBs) are transient radio sources at cosmological distances. No counterparts in other bands have been observed for { non-repeating FRBs}. Here we suggest the collapse of strange star crusts as a possible origin for FRBs.…

High Energy Astrophysical Phenomena · Physics 2018-05-15 Yue Zhang , Jin-Jun Geng , Yong-Feng Huang

The extreme timing stability of radio millisecond pulsars (MSPs) combined with their exotic environment and evolutionary history makes them excellent laboratories to probe matter in extreme condition. Population studies indicate that we…

High Energy Astrophysical Phenomena · Physics 2022-04-06 Bhaswati Bhattacharyya , Jayanta Roy

Gamma-ray bursts (GRBs) divide into two classes: "long", which typically have initial durations of T90>2s, and "short", with durations of T90<2s (where T90 is the time to detect 90% of the observed fluence). Long bursts, which on average…

Astrophysics · Physics 2009-11-16 N. R. Tanvir , R. Chapman , A. J. Levan , R. S. Priddey

Fast radio bursts (FRBs) are millisecond radio transients observed at cosmological distances. The nature of their progenitors is still a matter of debate, although magnetars are invoked by most models. The proposed FRB-magnetar connection…

Gamma Ray Bursts (GRBs) are unpredictable and brief flashes of gamma rays that occur about once a day in random locations in the sky. Since gamma rays do not penetrate the Earth's atmosphere, they are detected by satellites, which…

High Energy Astrophysical Phenomena · Physics 2015-06-05 A. Gomboc

Fast radio bursts (FRBs) are recently discovered mysterious single pulses of radio emission, mostly coming from cosmological distances ($\sim 1$ Gpc). Their short duration, $\sim 1$ ms, and large luminosity evidence coherent emission. I…

High Energy Astrophysical Phenomena · Physics 2021-03-02 Yuri Lyubarsky

The Galactic massive black hole (MBH), with a mass of Mbh=3.6\times10^6 Solar masses, is the closest known MBH, at a distance of only 8 kpc. The proximity of this MBH makes it possible to observe gravitational waves from stars with periapse…

Astrophysics · Physics 2008-11-26 Clovis Hopman , Marc Freitag , Shane L. Larson

Gamma-ray bursts are transient events from beyond the solar system. Besides the allure of their mysterious origin, bursts are physically fascinating because they undoubtedly require exotic physics. Optical transients coincident with burst…

Astrophysics · Physics 2007-05-23 David L. Band

Rossi X-Ray Timing Explorer observations of the Small Magellanic Cloud have revealed a previously unknown transient X-ray pulsar with a pulse period of 95s. Provisionally designated XTE SMC95, the pulsar was detected in three Proportional…

Astrophysics · Physics 2009-11-07 S. Laycock , R. H. D. Corbet , D. Perrodin , M. J. Coe , F. E. Marshall , C. Markwardt

Fast radio bursts (FRBs) are millisecond radio signals from cosmological distances. As they propagate, FRBs can interact with ambient photons and initiate a quantum cascade that can limit the electric field strength. This paper examines…

High Energy Astrophysical Phenomena · Physics 2023-10-24 Jun-Yi Shen , Yuan-Chuan Zou

The radio sky is poorly sampled for rapidly varying transients because of the narrow field-of-view of most imaging radio telescopes at cm and shorter wavelengths. The emergence of sensitive long wavelength observations with intrinsically…

We report evidence from the 3B Catalogue that long ($T_{90} > 10$ s) and short ($T_{90} < 10$ s) gamma-ray bursts represent distinct source populations. Their spatial distributions are significantly different, with long bursts having…

Astrophysics · Physics 2009-10-28 J. I. Katz , L. M. Canel

Context. Solar activity is often accompanied by solar radio emission, consisting of numerous types of solar radio bursts. At low frequencies (<100 MHz) radio bursts with short durations of milliseconds, such as solar S-bursts, have been…

We discuss possible radio bursts which can be generated during binary neutron stars mergers associated with short gamma-ray bursts. Low-frequency radio band appear to be advantageous due to the time delay of a radio signal propagating in…

High Energy Astrophysical Phenomena · Physics 2010-04-30 K. A. Postnov , M. S. Pshirkov

Recently, astrometric and spectroscopic observations resulted in the discovery of several low-mass binaries with invisible components, which are expected to be compact objects. In about two dozen cases, the masses of these components are…

High Energy Astrophysical Phenomena · Physics 2025-09-04 Elena Brylyakova , Marina Afonina , Gayane Tyul'basheva , Sergei B. Popov , Sergei Tyul'bashev

The Galactic center has some of the highest stellar densities in the Galaxy and a range of interstellar scattering properties that may aid in the detection of new radio-selected transient events. Here we describe a search for radio…

High Energy Astrophysical Phenomena · Physics 2016-12-14 Anirudh Chiti , Shami Chatterjee , Robert Wharton , James Cordes , T. Joseph W. Lazio , David L. Kaplan , Geoffrey C. Bower , Steve Croft

Gamma-Ray Bursts (GRBs) are thought to originate at cosmological distances from the most powerful explosions in the Universe. If GRBs are not beamed then the distribution of their number as a function of Gamma-ray flux implies that they…

Astrophysics · Physics 2009-10-30 Abraham Loeb , Rosalba Perna

Violent solar eruptions are often accompanied by relativistic beams of charged particles. In the solar context, they are referred to as SPEs (Solar Particle Events) and are known to generate a characteristic swept-frequency radio burst. Due…

Solar and Stellar Astrophysics · Physics 2020-07-15 H. K. Vedantham

Fast radio bursts (FRBs) are bright, unresolved, millisecond-duration flashes of radio emission originating from outside of the Milky Way. The source of these mysterious outbursts is unknown, but their high luminosity, high dispersion…

High Energy Astrophysical Phenomena · Physics 2019-08-20 Jamie Holder , Ryan S. Lynch