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Artykuły w czasopismach na temat „Coalescence de binaire compacte”

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Data publikacji: 23 listopada 2024

Data aktualizacji: 31 lipca 2025

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1

Spera, Mario, Alessandro Alberto Trani, and Mattia Mencagli. "Compact Binary Coalescences: Astrophysical Processes and Lessons Learned." Galaxies 10, no. 4 (2022): 76. http://dx.doi.org/10.3390/galaxies10040076.

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On 11 February 2016, the LIGO and Virgo scientific collaborations announced the first direct detection of gravitational waves, a signal caught by the LIGO interferometers on 14 September 2015, and produced by the coalescence of two stellar-mass black holes. The discovery represented the beginning of an entirely new way to investigate the Universe. The latest gravitational-wave catalog by LIGO, Virgo and KAGRA brings the total number of gravitational-wave events to 90, and the count is expected to significantly increase in the next years, when additional ground-based and space-born interferomet

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2

Graziani, Luca. "Hunting for Dwarf Galaxies Hosting the Formation and Coalescence of Compact Binaries." Physics 1, no. 3 (2019): 412–29. http://dx.doi.org/10.3390/physics1030030.

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Here we introduce the latest version of the GAMESH model, capable to consistently account for the formation and evolution of compact binary systems along the cosmic assembly of a Milky Way (MW)-like galaxy, centered on a local group volume resolving a large population of dwarf satellites. After describing the galaxy assembly process and how the formation of binary systems is accounted for, we summarize some recent findings on the properties and evolution of low-metallicity dwarf galaxies hosting the birth/coalescence of stellar/compact binaries generating GW150914-like signals. Finally, we foc

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3

Kalogera, V. "Close Binaries with Two Compact Objects." International Astronomical Union Colloquium 177 (2000): 579–84. http://dx.doi.org/10.1017/s0252921100060668.

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AbstractThe coalescence of close binary systems with two compact objects (neutron stars and black holes) are considered to be promising sources of gravitational waves for the currently built laser interferometers. Here, I review the current Galactic coalescence estimates derived both theoretically and empirically. I discuss the uncertainties involved as well as ways of obtaining an upper limit to the coalescence rate of two neutron stars.

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4

Abac, A. G., R. Abbott, I. Abouelfettouh, et al. "Observation of Gravitational Waves from the Coalescence of a 2.5–4.5 M _⊙ Compact Object and a Neutron Star." Astrophysical Journal Letters 970, no. 2 (2024): L34. http://dx.doi.org/10.3847/2041-8213/ad5beb.

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Abstract 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). The gravitational-wave signal GW230529_181500 was observed during the fourth observing run of the LIGO–Virgo–KAGRA detector network on 2023 May 29 by the LIGO Livingston observatory. The primary component of the source has a mass less than 5 M ⊙ at 99% credibility. We cannot definitively determine from gravitational-wave data alone whether either component of the source is a neutron star or a black hole. However, given existing

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5

Rasio, Frederic A., and Stuart L. Shapiro. "Hydrodynamic Evolution of Coalescing Compact Binaries." Symposium - International Astronomical Union 165 (1996): 17–28. http://dx.doi.org/10.1017/s0074180900055522.

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In addition to their possible relevance to gamma-ray bursts, coalescing binary neutron stars have long been recognized as important sources of gravitational radiation that should become detectable with the new generation of laser interferometers such as LIGO. Hydrodynamics plays an essential role near the end of the coalescence when the two stars finally merge into a single object. The shape of the corresponding burst of gravitational waves provides a direct probe into the interior structure of a neutron star and the nuclear equation of state. The interpretation of the gravitational waveform d

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6

WEN, LINQING, and QI CHU. "EARLY DETECTION AND LOCALIZATION OF GRAVITATIONAL WAVES FROM COMPACT BINARY COALESCENCES." International Journal of Modern Physics D 22, no. 11 (2013): 1360011. http://dx.doi.org/10.1142/s0218271813600110.

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With the first detection of gravitational waves expected in the next decade, increasing efforts are made toward the electromagnetic follow-up observations of gravitational wave events. In this paper, I discuss the prospect of real-time detection and source localization for gravitational waves from neutron star–neutron star binary or neutron star–black hole binary coalescences before their merger. I show that several low-latency search pipelines are already under intensive development with the aim to provide real-time detections of these events. There will also be fast responding and/or wide-fi

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7

Shapiro, Stuart L. "Gravitomagnetic Induction during the Coalescence of Compact Binaries." Physical Review Letters 77, no. 22 (1996): 4487–90. http://dx.doi.org/10.1103/physrevlett.77.4487.

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8

Chen, Bing-Guang, Tong Liu, Yan-Qing Qi, et al. "Effects of Vertical Advection on Multimessenger Signatures of Black Hole Neutrino-dominated Accretion Flows in Compact Binary Coalescences." Astrophysical Journal 941, no. 2 (2022): 156. http://dx.doi.org/10.3847/1538-4357/aca406.

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Abstract In the coalescence events of binary neutron star (NS) or a black hole (BH) and an NS, a BH hyperaccretion disk might be eventually formed. At very high mass accretion rates, MeV neutrinos will be emitted from this disk, which is called a neutrino-dominated accretion flow (NDAF). Neutrino annihilation in the space out of the disk is energetic enough to launch ultrarelativistic jets to power gamma-ray bursts. Moreover, vertical advection might exist in NDAFs, which can generate the magnetic buoyancy bubbles to release gamma-ray photons. In this paper, we visit the effects of the vertica

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9

Yu, Shenghua, Youjun Lu, and C. Simon Jeffery. "Orbital evolution of neutron-star–white-dwarf binaries by Roche lobe overflow and gravitational wave radiation." Monthly Notices of the Royal Astronomical Society 503, no. 2 (2021): 2776–90. http://dx.doi.org/10.1093/mnras/stab626.

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ABSTRACT We investigate the effects of mass transfer and gravitational wave (GW) radiation on the orbital evolution of contact neutron-star–white-dwarf (NS–WD) binaries, and the detectability of these binaries by space GW detectors (e.g. Laser Interferometer Space Antenna, LISA; Taiji; Tianqin). A NS–WD binary becomes contact when the WD component fills its Roche lobe, at which the GW frequency ranges from ∼0.0023 to 0.72 Hz for WD with masses ∼0.05–1.4 M⊙. We find that some high-mass NS–WD binaries may undergo direct coalescence after unstable mass transfer. However, the majority of NS–WD bin

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10

MacLeod, Morgan, Kishalay De, and Abraham Loeb. "Dusty, Self-obscured Transients from Stellar Coalescence." Astrophysical Journal 937, no. 2 (2022): 96. http://dx.doi.org/10.3847/1538-4357/ac8c31.

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Abstract We discuss the central role that dust condensation plays in shaping the observational appearance of outflows from coalescing binary systems. As binaries begin to coalesce, they shock-heat and expel material into their surroundings. Depending on the properties of the merging system, this material can expand to the point where molecules and dust form, dramatically increasing the gas opacity. We use the existing population of luminous red novae to constrain the thermodynamics of these ejecta, then apply our findings to the progressive obscuration of merging systems in the lead up to thei

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11

Spurzem, R., P. Berczik, I. Berentzen, D. Merritt, M. Preto, and P. Amaro-Seoane. "Formation and Evolution of Black Holes in Galactic Nuclei and Star Clusters." Proceedings of the International Astronomical Union 3, S246 (2007): 346–50. http://dx.doi.org/10.1017/s1743921308015901.

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AbstractWe study the formation, growth, and co-evolution of single and multiple supermassive black holes (SMBHs) and compact objects like neutron stars, white dwarfs, and stellar mass black holes in galactic nuclei and star clusters, focusing on the role of stellar dynamics. In this paper we focus on one exemplary topic out of a wider range of work done, the study of orbital parameters of binary black holes in galactic nuclei (binding energy, eccentricity, relativistic coalescence) as a function of initial parameters. In some cases the classical evolution of black hole binaries in dense stella

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12

Chatterjee, Chayan, Manoj Kovalam, Linqing Wen, Damon Beveridge, Foivos Diakogiannis, and Kevin Vinsen. "Rapid Localization of Gravitational Wave Sources from Compact Binary Coalescences Using Deep Learning." Astrophysical Journal 959, no. 1 (2023): 42. http://dx.doi.org/10.3847/1538-4357/ad08b7.

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Abstract 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. The rapid detection, localization, and simultaneous multimessenger follow-up of these sources are of primary importance in the upcoming science runs of the LIGO-Virgo-KAGRA Collaboration. While prompt EM counterparts during binary mergers can last less than 2 s, the timescales of existing localization methods that use Bayesian techniques, vary from seconds to days. In this paper, we propose the first deep le

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13

Piccinni, Ornella Juliana. "Status and Perspectives of Continuous Gravitational Wave Searches." Galaxies 10, no. 3 (2022): 72. http://dx.doi.org/10.3390/galaxies10030072.

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The birth of gravitational wave astronomy was triggered by the first detection of a signal produced by the merger of two compact objects (also known as a compact binary coalescence event). The following detections made by the Earth-based network of advanced interferometers had a significant impact in many fields of science: astrophysics, cosmology, nuclear physics and fundamental physics. However, compact binary coalescence signals are not the only type of gravitational waves potentially detectable by LIGO, Virgo, and KAGRA. An interesting family of still undetected signals, and the ones that

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14

Romero-Shaw, I. M., C. Talbot, S. Biscoveanu, et al. "Bayesian inference for compact binary coalescences with bilby: validation and application to the first LIGO–Virgo gravitational-wave transient catalogue." Monthly Notices of the Royal Astronomical Society 499, no. 3 (2020): 3295–319. http://dx.doi.org/10.1093/mnras/staa2850.

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ABSTRACT Gravitational waves provide a unique tool for observational astronomy. While the first LIGO–Virgo catalogue of gravitational-wave transients (GWTC-1) contains 11 signals from black hole and neutron star binaries, the number of observations is increasing rapidly as detector sensitivity improves. To extract information from the observed signals, it is imperative to have fast, flexible, and scalable inference techniques. In a previous paper, we introduced bilby: a modular and user-friendly Bayesian inference library adapted to address the needs of gravitational-wave inference. In this wo

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15

Komossa, S., and J. A. Zensus. "Compact object mergers: observations of supermassive binary black holes and stellar tidal disruption events." Proceedings of the International Astronomical Union 10, S312 (2014): 13–25. http://dx.doi.org/10.1017/s1743921315007395.

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AbstractThe capture and disruption of stars by supermassive black holes (SMBHs), and the formation and coalescence of binaries, are inevitable consequences of the presence of SMBHs at the cores of galaxies. Pairs of active galactic nuclei (AGN) and binary SMBHs are important stages in the evolution of galaxy mergers, and an intense search for these systems is currently ongoing. In the early and advanced stages of galaxy merging, observations of the triggering of accretion onto one or both BHs inform us about feedback processes and BH growth. Identification of the compact binary SMBHs at parsec

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16

Talbot, Colm, and Eric Thrane. "Flexible and Accurate Evaluation of Gravitational-wave Malmquist Bias with Machine Learning." Astrophysical Journal 927, no. 1 (2022): 76. http://dx.doi.org/10.3847/1538-4357/ac4bc0.

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Abstract Many astronomical surveys are limited by the brightness of the sources, and gravitational-wave searches are no exception. The detectability of gravitational waves from merging binaries is affected by the mass and spin of the constituent compact objects. To perform unbiased inference on the distribution of compact binaries, it is necessary to account for this selection effect, which is known as Malmquist bias. Since systematic error from selection effects grows with the number of events, it will be increasingly important over the coming years to accurately estimate the observational se

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17

O'Shaughnessy, R., V. Kalogera, and Krzysztof Belczynski. "BINARY COMPACT OBJECT COALESCENCE RATES: THE ROLE OF ELLIPTICAL GALAXIES." Astrophysical Journal 716, no. 1 (2010): 615–33. http://dx.doi.org/10.1088/0004-637x/716/1/615.

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18

Usman, Samantha A., Alexander H. Nitz, Ian W. Harry, et al. "The PyCBC search for gravitational waves from compact binary coalescence." Classical and Quantum Gravity 33, no. 21 (2016): 215004. http://dx.doi.org/10.1088/0264-9381/33/21/215004.

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Tsutsui, T., A. Nishizawa, and S. Morisaki. "Early warning of precessing neutron-star black hole binary mergers with the near-future gravitational-wave detectors." Monthly Notices of the Royal Astronomical Society 512, no. 3 (2022): 3878–84. http://dx.doi.org/10.1093/mnras/stac715.

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ABSTRACT Since gravitational and electromagnetic waves from a compact binary coalescence carry independent information about the source, the joint observation is important for understanding the physical mechanisms of the emissions. Rapid detection and source localization of a gravitational wave signal are crucial for the joint observation to be successful. For a signal with a high signal-to-noise ratio, it is even possible to detect it before the merger, which is called early warning. In this article, we estimate the performances of the early warning for neutron-star black hole binaries, consi

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20

Ray, Anarya, Ignacio Magaña Hernandez, Siddharth Mohite, Jolien Creighton, and Shasvath Kapadia. "Nonparametric Inference of the Population of Compact Binaries from Gravitational-wave Observations Using Binned Gaussian Processes." Astrophysical Journal 957, no. 1 (2023): 37. http://dx.doi.org/10.3847/1538-4357/acf452.

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Abstract The observation of gravitational waves from multiple compact binary coalescences by the LIGO–Virgo–KAGRA detector networks has enabled us to infer the underlying distribution of compact binaries across a wide range of masses, spins, and redshifts. In light of the new features found in the mass spectrum of binary black holes and the uncertainty regarding binary formation models, nonparametric population inference has become increasingly popular. In this work, we develop a data-driven clustering framework that can identify features in the component mass distribution of compact binaries

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21

Ni, Wei-Tou, Gang Wang, and An-Ming Wu. "Astrodynamical middle-frequency interferometric gravitational wave observatory AMIGO: Mission concept and orbit design." International Journal of Modern Physics D 29, no. 04 (2020): 1940007. http://dx.doi.org/10.1142/s0218271819400078.

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AMIGO is a first-generation Astrodynamical Middle-frequency Interferometric Gravitational Wave (GW) Observatory. The scientific goals of AMIGO are to bridge the spectra gap between first-generation high-frequency and low-frequency GW sensitivities: to detect intermediate mass BH coalescence; to detect inspiral phase and predict time of binary black hole coalescences together with binary neutron star & black hole-neutron star coalescences for ground interferometers; to detect compact binary inspirals for studying stellar evolution and galactic population. The mission concept is to use time

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22

Mozzon, S., L. K. Nuttall, A. Lundgren, T. Dent, S. Kumar, and A. H. Nitz. "Dynamic normalization for compact binary coalescence searches in non-stationary noise." Classical and Quantum Gravity 37, no. 21 (2020): 215014. http://dx.doi.org/10.1088/1361-6382/abac6c.

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Cannon, Kipp, Romain Cariou, Adrian Chapman, et al. "TOWARD EARLY-WARNING DETECTION OF GRAVITATIONAL WAVES FROM COMPACT BINARY COALESCENCE." Astrophysical Journal 748, no. 2 (2012): 136. http://dx.doi.org/10.1088/0004-637x/748/2/136.

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24

Samanta, Debasri, and Rajib Kumar Dolai. "Stochastic Modeling of Compact Binary Coalescences for Gravitational Wave Analysis." International Astronomy and Astrophysics Research Journal 7, no. 1 (2025): 57–67. https://doi.org/10.9734/iaarj/2025/v7i1116.

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Mencagli, Mattia, Natalia Nazarova, and Mario Spera. "ISTEDDAS: a new direct N-Body code to study merging compact-object binaries." Journal of Physics: Conference Series 2207, no. 1 (2022): 012051. http://dx.doi.org/10.1088/1742-6596/2207/1/012051.

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Abstract On September 14, 2015, the two detectors of the Laser Interferometer Gravitational wave Observatory (LIGO) reported the first detection of gravitational waves, a signal generated from the coalescence of two stellar-mass black holes. The discovery represented the beginning of an entirely new way to investigate the Universe. From the theoretical point of view, the formation and evolution of compact-object binaries are still very uncertain. One of the main issues is that most stars form in dense stellar environments, and numerical simulations of merging compact-object binaries in such cr

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26

Rastello, Sara, Michela Mapelli, Ugo N. Di Carlo, et al. "Dynamics of black hole–neutron star binaries in young star clusters." Monthly Notices of the Royal Astronomical Society 497, no. 2 (2020): 1563–70. http://dx.doi.org/10.1093/mnras/staa2018.

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ABSTRACT Young star clusters are likely the most common birthplace of massive stars across cosmic time and influence the formation of compact binaries in several ways. Here, we simulate the formation of black hole–neutron star binaries (BHNSs) in young star clusters, by means of the binary population synthesis code MOBSE interfaced with the N-body code NBODY6++GPU. BHNSs formed in young star clusters (dynamical BHNSs) are significantly more massive than BHNSs formed from isolated binaries (isolated BHNSs): ∼40 per cent of the dynamical BHNS mergers have a total mass of &gt;15 M⊙, while onl

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27

Hamilton, Chris, and Roman R. Rafikov. "Relativistic Phase Space Diffusion of Compact Object Binaries in Stellar Clusters and Hierarchical Triples." Astrophysical Journal 961, no. 2 (2024): 237. http://dx.doi.org/10.3847/1538-4357/ad0be2.

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Abstract The LIGO/Virgo detections of compact object mergers have posed a challenge for theories of binary evolution and coalescence. One promising avenue for producing mergers dynamically is through secular eccentricity oscillations driven by an external perturber, be it a tertiary companion (as in the Lidov–Kozai, LK, mechanism) or the tidal field of the stellar cluster in which the binary orbits. The simplest theoretical models of these oscillations use a “doubly averaged” (DA) approximation, averaging both over the binary’s internal Keplerian orbit and its “outer” barycentric orbit relativ

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Abbott, B. P., R. Abbott, T. D. Abbott, et al. "GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼ 3.4 M ⊙." Astrophysical Journal 892, no. 1 (2020): L3. http://dx.doi.org/10.3847/2041-8213/ab75f5.

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Kopparapu, Ravi Kumar, Chad Hanna, Vicky Kalogera, et al. "Host Galaxies Catalog Used in LIGO Searches for Compact Binary Coalescence Events." Astrophysical Journal 675, no. 2 (2008): 1459–67. http://dx.doi.org/10.1086/527348.

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Nielsen, Alex B. "Compact binary coalescence parameter estimations for 2.5 post-Newtonian aligned spinning waveforms." Classical and Quantum Gravity 30, no. 7 (2013): 075023. http://dx.doi.org/10.1088/0264-9381/30/7/075023.

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Dobie, Dougal, Tara Murphy, David L. Kaplan, et al. "Radio afterglows from compact binary coalescences: prospects for next-generation telescopes." Monthly Notices of the Royal Astronomical Society 505, no. 2 (2021): 2647–61. http://dx.doi.org/10.1093/mnras/stab1468.

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ABSTRACT The detection of gravitational waves from a neutron star merger, GW170817, marked the dawn of a new era in time-domain astronomy. Monitoring of the radio emission produced by the merger, including high-resolution radio imaging, enabled measurements of merger properties including the energetics and inclination angle. In this work, we compare the capabilities of current and future gravitational wave facilities to the sensitivity of radio facilities to quantify the prospects for detecting the radio afterglows of gravitational wave events. We consider three observing strategies to identif

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Mandel, Ilya, Christopher P. L. Berry, Frank Ohme, Stephen Fairhurst, and Will M. Farr. "Parameter estimation on compact binary coalescences with abruptly terminating gravitational waveforms." Classical and Quantum Gravity 31, no. 15 (2014): 155005. http://dx.doi.org/10.1088/0264-9381/31/15/155005.

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Singh, Mukesh Kumar, Shasvath J. Kapadia, Md Arif Shaikh, Deep Chatterjee, and Parameswaran Ajith. "Improved early warning of compact binary mergers using higher modes of gravitational radiation: a population study." Monthly Notices of the Royal Astronomical Society 502, no. 2 (2021): 1612–22. http://dx.doi.org/10.1093/mnras/stab125.

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ABSTRACT A gravitational wave early warning of a compact binary coalescence event, with a sufficiently tight localization skymap, would allow telescopes to point in the direction of the potential electromagnetic counterpart before its onset. Use of higher modes of gravitational radiation, in addition to the dominant mode typically used in templated real-time searches, was recently shown to produce significant improvements in early-warning times and skyarea localizations for a range of asymmetric mass binaries. We perform a large-scale study to assess the benefits of this method for a populatio

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Stachie, Cosmin, Tito Dal Canton, Nelson Christensen та ін. "Searches for Modulated γ-Ray Precursors to Compact Binary Mergers in Fermi-GBM Data". Astrophysical Journal 930, № 1 (2022): 45. http://dx.doi.org/10.3847/1538-4357/ac5f53.

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Abstract GW170817 is the only gravitational-wave event for which a confirmed γ-ray counterpart, GRB 170817A, has been detected. Here, we present a method to search for another type of γ-ray signal, a γ-ray burst precursor, associated with a compact binary merger. If emitted shortly before the coalescence, a high-energy electromagnetic (EM) flash travels through a highly dynamical and relativistic environment, created by the two compact objects orbiting each other. Thus, the EM signal arriving at an Earth observer could present a somewhat predictable time-dependent modulation. We describe a tar

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35

Dupree, William, and Sukanta Bose. "Multi-detector null-stream-based $\chi^2$ statistic for compact binary coalescence searches." Classical and Quantum Gravity 36, no. 19 (2019): 195012. http://dx.doi.org/10.1088/1361-6382/ab30cf.

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Van Den Broeck, C. "Astrophysics, cosmology, and fundamental physics with compact binary coalescence and the Einstein Telescope." Journal of Physics: Conference Series 484 (March 5, 2014): 012008. http://dx.doi.org/10.1088/1742-6596/484/1/012008.

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Biwer, C. M., Collin D. Capano, Soumi De, et al. "PyCBC Inference: A Python-based Parameter Estimation Toolkit for Compact Binary Coalescence Signals." Publications of the Astronomical Society of the Pacific 131, no. 996 (2019): 024503. http://dx.doi.org/10.1088/1538-3873/aaef0b.

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Regimbau, Tania. "The Quest for the Astrophysical Gravitational-Wave Background with Terrestrial Detectors." Symmetry 14, no. 2 (2022): 270. http://dx.doi.org/10.3390/sym14020270.

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We present the gravitational-wave background and its properties focusing on the background from compact binary coalescences in terrestrial detectors. We also introduce the standard data analysis method used to search for this background and discuss its detectability with second and third generation networks of detectors. To illustrate, we first use simple models and then discuss more realistic models based on simulations.

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Mandel, Ilya, and Richard O'Shaughnessy. "Compact binary coalescences in the band of ground-based gravitational-wave detectors." Classical and Quantum Gravity 27, no. 11 (2010): 114007. http://dx.doi.org/10.1088/0264-9381/27/11/114007.

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Nitz, Alexander H., and Yi-Fan Wang. "Search for Gravitational Waves from the Coalescence of Subsolar Mass and Eccentric Compact Binaries." Astrophysical Journal 915, no. 1 (2021): 54. http://dx.doi.org/10.3847/1538-4357/ac01d9.

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Nitz, Alexander H., Collin D. Capano, Sumit Kumar, et al. "3-OGC: Catalog of Gravitational Waves from Compact-binary Mergers." Astrophysical Journal 922, no. 1 (2021): 76. http://dx.doi.org/10.3847/1538-4357/ac1c03.

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Abstract We present the third open gravitational-wave catalog (3-OGC) of compact-binary coalescences, based on the analysis of the public LIGO and Virgo data from 2015 through 2019 (O1, O2, O3a). Our updated catalog includes a population of 57 observations, including 4 binary black hole mergers that had not been previously reported. This consists of 55 binary black hole mergers and the 2 binary neutron star mergers, GW170817 and GW190425. We find no additional significant binary neutron star or neutron star–black hole merger events. The most confident new detection is the binary black hole mer

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Maurya, S. K., G. Mustafa, M. Govender та Ksh Newton Singh. "Exploring physical properties of minimally deformed strange star model and constraints on maximum mass limit in f(𝒬) gravity". Journal of Cosmology and Astroparticle Physics 2022, № 10 (2022): 003. http://dx.doi.org/10.1088/1475-7516/2022/10/003.

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Abstract Our current investigation is inherently linked to the observations of gravitational waves from the GW190814 event which suggests that the source of the signals can be ascribed to a compact binary coalescence of a 22.2 to 24.3M ⊙ black hole and a compact object endowed with a mass of 2.50 to 2.67M ⊙. In the current exposition, we are concerned with modeling of the lower mass component of the coalescence pair. We utilize the f(𝒬) gravity together with the Minimal Geometric Deformation (MGD) technique to obtain compact stellar objects with masses aligned with the GW190814 event. Starting

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Liu, Yuan, Zhihui Du, Shin Kee Chung, Shaun Hooper, David Blair, and Linqing Wen. "GPU-accelerated low-latency real-time searches for gravitational waves from compact binary coalescence." Classical and Quantum Gravity 29, no. 23 (2012): 235018. http://dx.doi.org/10.1088/0264-9381/29/23/235018.

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Hu, Chin-Ping, Lupin Chun-Che Lin, Kuo-Chuan Pan, et al. "A Comprehensive Analysis of the Gravitational Wave Events with the Stacked Hilbert–Huang Transform: From Compact Binary Coalescence to Supernova." Astrophysical Journal 935, no. 2 (2022): 127. http://dx.doi.org/10.3847/1538-4357/ac8165.

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Abstract We analyze the gravitational wave signals with a model-independent time-frequency analysis, which is improved from the Hilbert–Huang transform (HHT) and optimized for characterizing the frequency variability on the time-frequency map. Instead of the regular HHT algorithm, i.e., obtaining intrinsic mode functions with ensemble empirical mode decomposition and yielding the instantaneous frequencies, we propose an alternative algorithm that operates the ensemble mean on the time-frequency map. We systematically analyze the known gravitational wave events of the compact binary coalescence

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Vedovato, G., E. Milotti, G. A. Prodi, et al. "Minimally-modeled search of higher multipole gravitational-wave radiation in compact binary coalescences." Classical and Quantum Gravity 39, no. 4 (2022): 045001. http://dx.doi.org/10.1088/1361-6382/ac45da.

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Abstract As the Advanced LIGO and Advanced Virgo interferometers, soon to be joined by the KAGRA interferometer, increase their sensitivity, they detect an ever-larger number of gravitational waves with a significant presence of higher multipoles (HMs) in addition to the dominant (2, 2) multipole. These HMs can be detected with different approaches, such as the minimally-modeled burst search methods, and here we discuss one such approach based on the coherent WaveBurst (cWB) pipeline. During the inspiral phase the HMs produce chirps whose instantaneous frequency is a multiple of the dominant (

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Dietz, A. "Estimation of compact binary coalescense rates from short gamma-ray burst redshift measurements." Astronomy & Astrophysics 529 (April 11, 2011): A97. http://dx.doi.org/10.1051/0004-6361/201016166.

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Kapadia, Shasvath J., Dimple, Dhruv Jain, Kuntal Misra, K. G. Arun, and Resmi Lekshmi. "Rates and Beaming Angles of Gamma-Ray Bursts Associated with Compact Binary Coalescences." Astrophysical Journal Letters 976, no. 1 (2024): L10. http://dx.doi.org/10.3847/2041-8213/ad8dc7.

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Abstract Some, if not all, binary neutron star (BNS) coalescences, and a fraction of neutron star–black hole (NSBH) mergers, are thought to produce sufficient mass ejection to power gamma-ray bursts (GRBs). However, this fraction, as well as the distribution of beaming angles of BNS-associated GRBs, is poorly constrained from observation. Recent work applied machine learning tools to analyze GRB light curves observed by Fermi/Gamma-Ray Burst Monitor (GBM) and Swift/Burst Alert Telescope (BAT). GRBs were segregated into multiple distinct clusters, with the tantalizing possibility that one of th

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Win, Aung Naing, Yu-Ming Chu, Hasrat Hussain Shah, Syed Zaheer Abbas, and Munawar Shah. "Electromagnetic counterpart to gravitational waves from coalescence of binary black hole with magnetic monopole charge." International Journal of Modern Physics A 35, no. 31 (2020): 2050205. http://dx.doi.org/10.1142/s0217751x2050205x.

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A Satellite Fermi GBM detected recent putative short Gamma Ray Bursts (GRBs) in coincident with the gravitational wave signal GW 150914 produced by the merger of binary black hole (BH). If at least one BH possess magnetic monopole charge in the binary BH system then the short-duration GRBs may produce during the final phase of a binary BH merger. The detection of gravitational waves GW 150914, GW 151226 and LVT 151012 by LIGO gave the evidence that merging of the compact object like binary BH often happens in our universe. In this paper, we report the qualitative model to discuss the generatio

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Mandel, Ilya, and Floor S. Broekgaarden. "Rates of compact object coalescences." Living Reviews in Relativity 25, no. 1 (2022). http://dx.doi.org/10.1007/s41114-021-00034-3.

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AbstractGravitational-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 constrained by electromagnetic observations, including Galactic radio binary pulsars and short gamma-ray bursts. Meanwhile, increasingly sophisticated models of compact objects merging through a variety of evolutionary channels produce a range of theoretically predicted rates. Rapid improvements in instrument sensitivity, along with plans for new and improved

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Bonetti, Matteo, Albino Perego, Pedro R. Capelo, Massimo Dotti, and M. Coleman Miller. "r-Process Nucleosynthesis in the Early Universe Through Fast Mergers of Compact Binaries in Triple Systems." Publications of the Astronomical Society of Australia 35 (2018). http://dx.doi.org/10.1017/pasa.2018.11.

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AbstractSurface abundance observations of halo stars hint at the occurrence of r-process nucleosynthesis at low metallicity ([Fe/H] < -3), possibly within the first 108 yr after the formation of the first stars. Possible loci of early-Universe r-process nucleosynthesis are the ejecta of either black hole–neutron star or neutron star–neutron star binary mergers. Here, we study the effect of the inclination–eccentricity oscillations raised by a tertiary (e.g. a star) on the coalescence time-scale of the inner compact object binaries. Our results are highly sensitive to the assumed initial dis

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