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相关论文: Coalescence Rates of Double Neutron Stars

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The first detection of gravitational waves from a merging double neutron star (DNS) binary implies a much higher rate of DNS coalescences in the local Universe than typically estimated on theoretical grounds. The recent study by Chruslinska…

高能天体物理现象 · 物理学 2020-02-19 Martyna Chruslinska

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

We estimate the coalescence rate of close binaries with two neutron stars (NS) and discuss the prospects for the detection of NS-NS inspiral events by ground-based gravitational-wave observatories, such as LIGO. We derive the Galactic…

天体物理学 · 物理学 2009-10-31 V. Kalogera , R. Narayan , D. N. Spergel , J. H. Taylor

Evolution of the coalescence rate of double neutron stars (NS) and neutron star -- black hole (BH) binaries are computed for model galaxies with different star formation rates. Assuming gamma-ray bursts (GRB) to originate from NS+NS or…

天体物理学 · 物理学 2009-10-28 V. M. Lipunov , K. A. Postnov , M. E. Prokhorov , I. E. Panchenko

The merger of two neutron stars has been proposed as a source of gamma-ray bursts, r-process elements, and detectable gravitational waves. Extracting information from observations of these phenomena requires fully relativistic simulations.…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Walter Landry , Saul A. Teukolsky

We summarize our results on the Galactic merger rate of double neutron stars (DNS) in view of the recent discovery of PSR J0737-3039. We also present previously unpublished results for the 'global' probability distribution of merger rate…

天体物理学 · 物理学 2007-05-23 Chunglee Kim , Vassiliki Kalogera , Duncan R. Lorimer , Mia Ihm , Krzysztof Belczynski

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

In this paper we present new estimates of the coalescence rate of neutron star binaries in the local universe and we discuss its consequences for the first generations of ground based interferometers. Our approach based on both evolutionary…

广义相对论与量子宇宙学 · 物理学 2009-11-11 T. Regimbau , J. A. de Freitas Pacheco , A. Spallicci , S. Vincent

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

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

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

We review the current status of general relativistic studies for coalescences of black hole--neutron star binaries. First, high-precision computations of black hole--neutron star binaries in quasiequilibrium circular orbits are summarized,…

高能天体物理现象 · 物理学 2021-12-21 Koutarou Kyutoku , Masaru Shibata , Keisuke Taniguchi

We find the distribution of coalescence times, birthrates, spatial velocities, and subsequent radial offsets of coalescing neutron stars (NSs) in various galactic potentials accounting for large asymmetric kicks introduced during a…

天体物理学 · 物理学 2009-10-30 Joshua S. Bloom , Steinn Sigurdsson , Onno R. Pols

Three-dimensional hydrodynamical, Newtonian calculations of the coalescence of equal-mass binary neutron stars are performed, including a physical high-density equation of state and a treatment of the neutrino emission of the heated matter.…

天体物理学 · 物理学 2009-09-25 M. Ruffert , H. -Th. Janka , K. Takahashi , G. Schaefer

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

The coalescence rate of two neutron stars (NS) is revisited. For estimation of the number of bound NS-NS and the probability of their coalescence in a timescale $\tau$, the galactic star formation history, directly derived from…

天体物理学 · 物理学 2009-11-13 J. A. de Freitas Pacheco , T. Regimbau , S. Vincent , A. Spallicci

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

Estimates of the Galactic coalescence rate (R) of close binaries with two neutron stars (NS-NS) are known to be uncertain by large factors (about two orders of magnitude) mainly due to the small number of systems detected as binary radio…

天体物理学 · 物理学 2009-11-07 C. Kim , V. Kalogera , D. R. Lorimer

Orbits of close-in planets can shrink significantly due to dissipation of tidal energy in a host star. This process can result in star-planet coalescence within the Galactic lifetime. In some cases, such events can be accompanied by an…

地球与行星天体物理 · 物理学 2019-10-17 Alexander V. Popkov , Sergei B. Popov

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
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