254 citations · 1k across the 28 of their papers we have counts for
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A luminous precursor in the extremely bright GRB 230307A
S. Dichiara, D. Tsang, E. Troja +3
GRB 230307A is an extremely bright long duration GRB with an observed gamma-ray fluence of 310 erg cm (10-1000 keV), second only to GRB 221009A. Desp…
Constraining Nuclear Symmetry Energy with Multi-messenger Resonant Shattering Flares
Duncan Neill, Rebecca Preston, William G. Newton +1
Much effort is devoted to measuring the nuclear symmetry energy through neutron star (NS) and nuclear observables. Since matter in the NS core may be non-hadronic, observables like…
Resonant Shattering Flares in Black Hole-Neutron Star and Binary Neutron Star Mergers
Duncan Neill, David Tsang, Hendrik van Eerten +2
Resonant Shattering flares (RSFs) are bursts of gamma-rays expected to be triggered by tidal resonance of a neutron star (NS) during binary inspiral. They are strongly dependent on…
Resonant Shattering Flares as Multimessenger Probes of the Nuclear Symmetry Energy
Duncan Neill, William G. Newton, David Tsang
The behaviour of the nuclear symmetry energy near saturation density is important for our understanding of dense nuclear matter. This density dependence can be parameterised by the…
The Rate of Short Duration Gamma-Ray Bursts in the local Universe
Soheb Mandhai, Nial Tanvir, Gavin Lamb +2
The binary neutron star merger responsible for the gravitational wave event, GW170817, strengthened the merger association with short-duration gamma-ray bursts (SGRBs) following th…
The Rate of Short-Duration Gamma-Ray Bursts in the Local Universe
Soheb Mandhai, Nial Tanvir, Gavin Lamb +2
Following the faint gamma-ray burst, GRB 170817A, coincident with a gravitational wave-detected binary neutron star merger at Mpc, we consider the constraints on a local…
Electromagnetic Chirps from Neutron Star-Black Hole Mergers
Jeremy D. Schnittman, Tito Dal Canton, Jordan Camp +2
We calculate the electromagnetic signal of a gamma-ray flare coming from the surface of a neutron star shortly before merger with a black hole companion. Using a new version of the…
Self-Trapping of Diskoseismic Corrugation Modes in Neutron Star Spacetimes
David Tsang, George Pappas
We examine the effects of higher-order multipole contributions of rotating neutron star (NS) spacetimes on the propagation of corrugation (c-)modes within a thin accretion disk. We…
Iron Line Variability of Discoseismic Corrugation Modes
David Tsang, Iryna Butsky
Using a fast semi-analytic raytracing code, we study the variability of relativistically broadened iron lines due to discoseismic oscillations concentrated in the inner-most region…
Shattering Flares During Close Encounters of Neutron Stars
David Tsang
We demonstrate that resonant shattering flares can occur during close passages of neutron stars in eccentric or hyperbolic encounters. We provide updated estimates for the rate of…
An Anti-Glitch in a Magnetar
R. F. Archibald, V. M. Kaspi, C. -Y. Ng +6
Magnetars are neutron stars showing dramatic X-ray and soft -ray outbursting behaviour that is thought to be powered by intense internal magnetic fields. Like conventional young…
Timing Noise in Pulsars and Magnetars and the Magnetospheric Moment of Inertia
David Tsang, Konstantinos N. Gourgouliatos
We examine timing noise in both magnetars and regular pulsars, and find that there exists a component of the timing noise with strong magnetic field dependence above B ~ 10^{12.5}…
High-Frequency QPOs and Overstable Oscillations of Black-Hole Accretion Disks
Dong Lai, Wen Fu, David Tsang +2
The physical origin of high-frequency QPOs (HFQPOs) in black-hole X-ray binaries remains an enigma despite many years of detailed observational studies. Although there exists a num…
Resonant Shattering of Neutron Star Crusts
David Tsang, Jocelyn S. Read, Tanja Hinderer +2
The resonant excitation of neutron star (NS) modes by tides is investigated as a source of short gamma-ray burst (sGRB) precursors. We find that the driving of a crust-core interfa…
Corotational Instability of Inertial-Acoustic Modes in Black-Hole Accretion Discs: Non-Barotropic Flows
David Tsang, Dong Lai
We study the effect of corotation resonance on the inertial-acoustic oscillations (p-modes) of black-hole accretion discs. Previous works have shown that for barotropic flows (wher…