Multi-messenger astrophysics of black holes and neutron stars as probed by ground-based gravitational wave detectors: from present to future

A Corsi, L Barsotti, E Berti, M Evans, I Gupta… - Frontiers in Astronomy …, 2024 - frontiersin.org
The ground-based gravitational wave (GW) detectors LIGO and Virgo have enabled the birth
of multi-messenger GW astronomy via the detection of GWs from merging stellar-mass black …

The critical role of nuclear heating rates, thermalization efficiencies, and opacities for kilonova modelling and parameter inference

M Bulla - Monthly Notices of the Royal Astronomical Society, 2023 - academic.oup.com
We present an improved version of the 3D Monte Carlo radiative transfer code possis to
model kilonovae from neutron star mergers, wherein nuclear heating rates, thermalization …

GRMHD simulations of neutron-star mergers with weak interactions: r-process nucleosynthesis and electromagnetic signatures of dynamical ejecta

L Combi, DM Siegel - The Astrophysical Journal, 2023 - iopscience.iop.org
Fast neutron-rich material ejected dynamically over≲ 10 ms during the merger of a binary
neutron star (BNS) can give rise to distinctive electromagnetic counterparts to the system's …

The possibility of modeling the very high energy afterglow of GRB 221009A in a wind environment

J Ren, Y Wang, LL Zhang, ZG Dai - The Astrophysical Journal, 2023 - iopscience.iop.org
In this paper, we model the dynamics and radiation physics of the rarity event GRB 221009A
afterglow in detail. By introducing a top-hat jet that propagates in an environment dominated …

Cocoon cooling emission in neutron star mergers

H Hamidani, K Ioka - Monthly Notices of the Royal Astronomical …, 2023 - academic.oup.com
In the gravitational wave event GW170817, there was a∼ 10 h gap before electromagnetic
(EM) observations, without detection of the cocoon. The cocoon is heated by a short gamma …

Constraining the long-lived supramassive neutron stars by magnetar boosted kilonovae

H Wang, P Beniamini, D Giannios - Monthly Notices of the Royal …, 2024 - academic.oup.com
Kilonovae are optical transients following the merger of neutron star binaries, which are
powered by the r-process heating of merger ejecta. However, if a merger remnant is a long …

Modelling kilonova afterglows: Effects of the thermal electron population and interaction with GRB outflows

V Nedora, T Dietrich, M Shibata, M Pohl… - Monthly Notices of …, 2023 - academic.oup.com
Given an increasing number of gamma-ray bursts accompanied by potential kilonovae,
there is a growing importance to advance modelling of kilonova afterglows. In this work, we …

Late-time accretion in neutron star mergers: Implications for short gamma-ray bursts and kilonovae

W Lu, E Quataert - Monthly Notices of the Royal Astronomical …, 2023 - academic.oup.com
We study the long-term () evolution of the accretion disc after a neutron star (NS)–NS or NS–
black hole merger, taking into account the radioactive heating by r-process nuclei formed in …

X-ray afterglow limits on the viewing angles of short gamma-ray bursts

B O'Connor, P Beniamini, R Gill - Monthly Notices of the Royal …, 2024 - academic.oup.com
The behaviour of a short gamma-ray burst (sGRB) afterglow light curve can reveal the
angular structure of the relativistic jet and constrain the observer's viewing angle. The …

On the association of GW190425 with its potential electromagnetic counterpart FRB 20190425A

I Magaña Hernandez, V d'Emilio… - The Astrophysical …, 2024 - orca.cardiff.ac.uk
Recent work by Moroianu et al. has suggested that the binary neutron star (BNS) merger
GW190425 might have a potential fast radio burst (FRB) counterpart association …