Results 41 to 50 of about 910,791 (369)

Rapid Localization of Gravitational Wave Sources from Compact Binary Coalescences Using Deep Learning

open access: yesThe Astrophysical Journal, 2023
The mergers of neutron star–neutron star and neutron star–black hole binaries (NSBHs) are the most promising gravitational wave (GW) events with electromagnetic (EM) counterparts.
Chayan Chatterjee   +5 more
doaj   +1 more source

A lower bound on the maximum mass if the secondary in GW190814 was once a rapidly spinning neutron star [PDF]

open access: yes, 2020
The recent detection of GW190814 featured the merger of a binary with a primary having a mass of $\sim 23\,M_{\odot}$ and a secondary with a mass of $\sim 2.6\,M_{\odot}$. While the primary was most likely a black hole, the secondary could be interpreted
E. Most   +4 more
semanticscholar   +1 more source

The Neutron Star Census

open access: yesThe Astrophysical Journal, 2000
13 pages, 6 PostScript figures, accepted to ...
Aldo Treves   +6 more
openaire   +5 more sources

What Is the Nature of the HESS J1731-347 Compact Object?

open access: yesThe Astrophysical Journal, 2023
Once further confirmed in future analyses, the radius and mass measurement of HESS J1731-347 with $M={0.77}_{-0.17}^{+0.20}\,{M}_{\odot }$ and $R={10.4}_{-0.78}^{+0.86}\,\mathrm{km}$ will be among the lightest and smallest compact objects ever detected ...
Violetta Sagun   +5 more
doaj   +1 more source

Observation of Gravitational Waves from the Coalescence of a 2.5–4.5 M ⊙ Compact Object and a Neutron Star [PDF]

open access: yesAstrophysical Journal Letters
We report the observation of a coalescing compact binary with component masses 2.5–4.5 M ⊙ and 1.2–2.0 M ⊙ (all measurements quoted at the 90% credible level).
A. Abac   +499 more
semanticscholar   +1 more source

Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A [PDF]

open access: yes, 2017
On 2017 August 17, the gravitational-wave event GW170817 was observed by the Advanced LIGO and Virgo detectors, and the gamma-ray burst (GRB) GRB 170817A was observed independently by the Fermi Gamma-ray Burst Monitor, and the Anticoincidence Shield for ...
B. Abbott   +499 more
semanticscholar   +1 more source

Interpreting binary neutron star mergers: describing the binary neutron star dynamics, modelling gravitational waveforms, and analyzing detections [PDF]

open access: yesGeneral Relativity and Gravitation, 2020
Gravitational waves emitted from the coalescence of neutron star binaries open a new window to probe matter and fundamental physics in unexplored, extreme regimes.
T. Dietrich, T. Hinderer, A. Samajdar
semanticscholar   +1 more source

Protoneutron stars and neutron stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 2000
Abstract We find constraints on minimum and maximum mass of ordinary neutron stars imposed by their early evolution (protoneutron star stage). We calculate models of protoneutron stars using a realistic standard equation of state of hot, dense matter valid for both supranuclear and subnuclear densities.
D. Gondek-Rosinska   +2 more
openaire   +3 more sources

Nonparametric Model for the Equations of State of a Neutron Star from Deep Neural Network

open access: yesThe Astrophysical Journal, 2023
It is of great interest to understand the equation of state (EOS) of the neutron star, whose core includes highly dense matter. However, there are large uncertainties in the theoretical predictions for the EOS of a neutron star. It is useful to develop a
Wenjie Zhou   +3 more
doaj   +1 more source

The Dynamics of Binary Neutron Star Mergers and GW170817 [PDF]

open access: yes, 2020
With the first observation of a binary neutron star merger through gravitational waves and light GW170817, compact binary mergers have now taken the center stage in nuclear astrophysics.
D. Radice, S. Bernuzzi, A. Perego
semanticscholar   +1 more source

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