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相关论文: Local merger rates of double neutron stars

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Merger events of close double neutron stars (DNS) lie at the basis of a number of current issues in relativistic astrophysics, such as the indirect and possible direct detection of gravitational waves, the production of gamma-ray bursts at…

天体物理学 · 物理学 2007-05-23 Vassiliki Kalogera

Recent pulsar surveys have increased the number of observed double neutron stars (DNS) in our galaxy enough so that observable trends in their properties are starting to emerge. In particular, it has been noted that the majority of DNS have…

天体物理学 · 物理学 2009-11-13 Catherine Mia Ihm , Vassiliki Kalogera , Krzysztof Belczynski

We constrain the uncertainty in waiting times for detecting the first double-neutron-star (DNS) mergers by gravitational wave observatories. By accounting for the Poisson fluctuations in the rate density of DNS mergers and galaxy space…

天体物理学 · 物理学 2011-05-09 D. M. Coward

We revisit double neutron star (DNS) formation in the classical binary evolution scenario in light of the recent LIGO/Virgo DNS detection (GW170817). The observationally estimated Galactic DNS merger rate of $R_{\rm MW}=21^{+28}_{-14}$…

高能天体物理现象 · 物理学 2017-11-15 Martyna Chruslinska , Krzysztof Belczynski , Jakub Klencki , Matthew Benacquista

Gravitational waves emitted from the coalescence of neutron star binaries open a new window to probe matter and fundamental physics in unexplored, extreme regimes. To extract information about the supranuclear matter inside neutron stars…

广义相对论与量子宇宙学 · 物理学 2021-03-10 Tim Dietrich , Tanja Hinderer , Anuradha Samajdar

In the context of assessing the detectability of the coalescence of two neutron stars (NS) by currently built gravitational-wave experiments, we present a way of obtaining an upper limit to the coalescence rate in the Galaxy. We consider…

天体物理学 · 物理学 2009-10-31 Vassiliki Kalogera , Duncan Lorimer

The coalescence of a neutron-star binary is likely to result in the formation of a neutron-star merger remnant for a large range of binary mass configurations. The massive merger remnant shows strong oscillations, which are excited by the…

高能天体物理现象 · 物理学 2016-02-03 A. Bauswein , J. Clark , N. Stergioulas , H. -T. Janka

The merging rate of double neutron stars (DNS) has a great impact on many astrophysical issues, including the interpretation of gravitational waves signals, of the short Gamma Ray Bursts (GRBs), and of the chemical properties of stars in…

高能天体物理现象 · 物理学 2020-11-04 Laura Greggio , Paolo Simonetti , Francesca Matteucci

Six gravitational wave detections have been reported so far, providing crucial insights on the merger rate of double compact objects. We investigate the cosmic merger rate of double neutron stars (DNSs), neutron star-black hole binaries…

高能天体物理现象 · 物理学 2018-07-04 Michela Mapelli , Nicola Giacobbo

We present the Galactic merger rate for double neutron star (DNS) binaries using the observed sample of eight DNS systems merging within a Hubble time. This sample includes the recently discovered, highly relativistic DNS systems…

高能天体物理现象 · 物理学 2019-03-01 Nihan Pol , Maura McLaughlin , Duncan R. Lorimer

We compare the impacts of uncertainties in both binary population synthesis models and the cosmic star formation history on the predicted rates of Gravitational Wave compact binary merger (GW) events. These uncertainties cause the predicted…

星系天体物理 · 物理学 2020-01-15 Petra N. Tang , J. J. Eldridge , Elizabeth R. Stanway , John C. Bray

Radio pulsar observations probe the lives of Galactic double neutron-star (DNS) systems while gravitational waves enable us to study extragalactic DNS in their final moments. By combining measurements from radio and gravitational-wave…

高能天体物理现象 · 物理学 2021-04-09 Shanika Galaudage , Christian Adamcewicz , Xing-Jiang Zhu , Simon Stevenson , Eric Thrane

Double neutron stars (DNSs) have been observed as Galactic radio pulsars, and the recent discovery of gravitational waves from the DNS merger GW170817 adds to the known DNS population. We perform rapid population synthesis of massive binary…

Gravitational-wave detections are enabling measurements of the rate of coalescences of binaries composed of two compact objects -- neutron stars and/or black holes. The coalescence rate of binaries containing neutron stars is further…

高能天体物理现象 · 物理学 2022-08-29 Ilya Mandel , Floor S. Broekgaarden

The last decade of observational and theoretical developments in stellar and binary evolution provides an opportunity to incorporate major improvements to the predictions from populations synthesis models. We compute the Galactic merger…

We have implemented prescriptions for modelling pulsars in the rapid binary population synthesis code COMPAS. We perform a detailed analysis of the double neutron star (DNS) population, accounting for radio survey selection effects. The…

高能天体物理现象 · 物理学 2020-04-22 Debatri Chattopadhyay , Simon Stevenson , Jarrod R. Hurley , Luca J. Rossi , Chris Flynn

Of the seven known double neutron stars (DNS) with precisely measure masses in the Milky Way that will merge within a Hubble time, all but one has a mass ratio, $q$, close to unity. Recently, precise measurements of three post-Keplerian…

高能天体物理现象 · 物理学 2020-07-14 Jeff J. Andrews

Using a population synthesis approach, we compute the total merger rate in the local Universe for double neutron stars, double black holes, and black hole -- neutron star binaries. These compact binaries are the prime source candidates for…

We review the current status of studies of the coalescence of binary neutron star systems. We begin with a discussion of the formation channels of merging binaries and we discuss the most recent theoretical predictions for merger rates.…

广义相对论与量子宇宙学 · 物理学 2015-06-04 Joshua A. Faber , Frederic A. Rasio

The simultaneous detection of gravitational and electromagnetic waves from a binary neutron star merger has both solidified the link between neutron star mergers and short-duration gamma-ray bursts (GRBs) and demonstrated the ability of…

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