Tidally trapped pulsations in a close binary star system discovered by TESS [PDF]
Nature Astronomy, 2020 It has long been suspected that tidal forces in close binary stars could modify the orientation of the pulsation axis of the constituent stars. Such stars have been searched for, but until now never detected.
G. Handler +16 more
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Formation of binary black holes similar to GW190521 with a total mass of ∼150 M⊙ from Population III binary star evolution [PDF]
, 2020 In case of zero metal (population III) stars, we show that total mass of binary black holes from binary population III star evolution can be $\sim 150 \,M_{\odot}$, which agrees with mass of a binary black hole, GW190521 recently discovered by LIGO/Virgo.
T. Kinugawa, Takashi Nakamura, H. Nakano
semanticscholar +1 more source
Interpreting binary neutron star mergers: describing the binary neutron star dynamics, modelling gravitational waveforms, and analyzing detections [PDF]
General 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
Three-dimensional simulations of neutrino-driven core-collapse supernovae from low-mass single and binary star progenitors [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present a suite of seven 3D supernova simulations of non-rotating low-mass progenitors using multi-group neutrino transport. Our simulations cover single star progenitors with zero-age main sequence masses between $9.6 M_\odot$ and $12.5 M_\odot$ and (
B. Müller +8 more
semanticscholar +1 more source
The short orbital period binary star at the heart of the planetary nebula M 3-1★ [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2018 We present the discovery of a 3h5m orbital-period binary star at the heart of the planetary nebula M 3-1 - the shortest period photometrically-variable central star known and second only to V458 Vul, in general.
David Jones +6 more
semanticscholar +1 more source
The Dynamics of Binary Neutron Star Mergers and GW170817 [PDF]
, 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
A radio-pulsing white dwarf binary star [PDF]
Nature, 2016 White dwarfs are compact stars, similar in size to Earth but approximately 200,000 times more massive. Isolated white dwarfs emit most of their power from ultraviolet to near-infrared wavelengths, but when in close orbits with less dense stars, white ...
T. Marsh +28 more
semanticscholar +1 more source
The cosmic merger rate density of compact objects: impact of star formation, metallicity, initial mass function, and binary evolution [PDF]
, 2020 We evaluate the redshift distribution of binary black hole (BBH), black hole - neutron star binary (BHNS) and binary neutron star (BNS) mergers, exploring the main sources of uncertainty: star formation rate (SFR) density, metallicity evolution, common ...
F. Santoliquido +4 more
semanticscholar +1 more source
Short Gamma Ray Bursts as possible electromagnetic counterpart of coalescing binary systems [PDF]
, 2010 Coalescing binary systems, consisting of two collapsed objects, are among the most promising sources of high frequency gravitational waves signals detectable, in principle, by ground-based interferometers.
A. Abramovici +38 more
core +1 more source
Intermediate-mass Black Holes from High Massive-star Binary Fractions in Young Star Clusters [PDF]
Astrophysical Journal, 2020 Black holes formed in dense star clusters, where dynamical interactions are frequent, may have fundamentally different properties than those formed through isolated stellar evolution.
E. Gonz'alez +7 more
semanticscholar +1 more source