中文
相关论文

相关论文: Gravitational-Wave Background from Extragalactic D…

200 篇论文

We consider the formation of double white dwarfs (DWDs) through dynamical interactions in globular clusters. Such interactions can give rise to eccentric DWDs, in contrast to the exclusively circular population expected to form in the…

天体物理学 · 物理学 2009-11-13 B. Willems , V. Kalogera , A. Vecchio , N. Ivanova , F. A. Rasio , J. M. Fregeau , K. Belczynski

The cosmic distance scale is built on multiple different techniques for estimating distances in space that are often connected and dependent on multiple measurements and assumptions. Double white dwarf binaries (DWDs) are common objects and…

高能天体物理现象 · 物理学 2026-02-12 Yuetong Zhao , L. Hellström , Siqi Zhang , M. Giersz , A. Askar , Youjun Lu , Zhoujian Cao , D. Belloni , G. Wiktorowicz , M. Górski

We investigate the Stochastic Gravitational Wave Background (SGWB) produced by merging binary black holes (BBHs) and binary neutron stars (BNSs) in the frequency ranges of LIGO/Virgo/Kagra and LISA. We develop three analytical models, that…

高能天体物理现象 · 物理学 2023-09-28 Leonard Lehoucq , Irina Dvorkin , Rahul Srinivasan , Clement Pellouin , Astrid Lamberts

The recent start of the fourth observing run of the LIGO-Virgo-KAGRA (LVK) collaboration has reopened the hunt for gravitational-wave (GW) signals, with one compact-binary-coalescence (CBC) signal expected to be observed every few days.…

广义相对论与量子宇宙学 · 物理学 2024-03-27 Federico De Lillo , Jishnu Suresh

Astrophysical formation channels of stellar-mass binary black holes (sBBHs) can induce significant orbital eccentricities in their early inspiral. We analyze the implications on the stochastic gravitational-wave background (SGWB) from…

广义相对论与量子宇宙学 · 物理学 2026-05-08 Ran Chen , Rohit S. Chandramouli , Federico Pozzoli , Riccardo Buscicchio , Enrico Barausse

Detecting stochastic gravitational wave backgrounds (SGWBs) with The Laser Interferometer Space Antenna (LISA) is among the mission science objectives. Disentangling SGWBs of astrophysical and cosmological origin is a challenging task,…

宇宙学与河外天体物理 · 物理学 2024-05-14 Federico Pozzoli , Riccardo Buscicchio , Christopher J. Moore , Francesco Haardt , Alberto Sesana

The Laser Interferometer Space Antenna (LISA) is expected to detect close white dwarf binaries (CWDBs) through their gravitational radiation. Around 3000 binaries will be spectrally resolved at frequencies > 3 mHz, and their positions on…

天体物理学 · 物理学 2009-11-10 Asantha Cooray , Alison J. Farmer , Naoki Seto

We study the detection accuracy of double white dwarfs (DWDs), stellar-mass black hole binaries (SBHBs), light and heavy intermediate mass ratio inspirals (IMRIs), extreme mass ratio inspirals (EMRIs), massive black hole binaries (MBHBs),…

高能天体物理现象 · 物理学 2024-12-02 Alejandro Torres-Orjuela

Context. The Astrophysical Gravitational Wave Background (AGWB) is a collective signal of astrophysical gravitational wave sources and is dominated by compact binaries. Its measurement is one of the science goals of current and future…

高能天体物理现象 · 物理学 2024-02-14 Seppe Staelens , Gijs Nelemans

White dwarfs (WDs) are frequently observed to have strong magnetic fields up to $10^9$ G and expected to have a possible internal field as high as $\sim 10^{14}$ G. High internal fields can significantly deform a WD's equilibrium structure,…

高能天体物理现象 · 物理学 2025-10-29 Mayusree Das , Banibrata Mukhopadhyay , Tomasz Bulik

LISA (Laser Interferometer Space Antenna) is a proposed space mission, which will use coherent laser beams exchanged between three remote spacecraft to detect and study low-frequency cosmic gravitational radiation. In the low-part of its…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Jeffrey A. Edlund , Massimo Tinto , Andrzej Królak , Gijs Nelemans

Stochastic gravitational-wave backgrounds (SGWBs) derive from the superposition of numerous individually unresolved gravitational-wave (GW) signals. Detecting SGWBs provides us with invaluable information about astrophysics, cosmology, and…

广义相对论与量子宇宙学 · 物理学 2023-09-26 Bei Zhou , Luca Reali , Emanuele Berti , Mesut Çalışkan , Cyril Creque-Sarbinowski , Marc Kamionkowski , B. S. Sathyaprakash

The stochastic gravitational-wave background (SGWB) from eccentric stellar-mass binary black holes (SBBHs) holds crucial clues to their origins. For the first time, we employ a Bayesian framework to assess the detectability and…

广义相对论与量子宇宙学 · 物理学 2025-10-30 Zheng-Cheng Liang , Zhi-Yuan Li , Yi-Ming Hu

Short-period (P<1 hour) white dwarf binaries will be the most numerous sources for the space-based gravitational wave detector LISA. Based on thousands of resolved systems, we will be able to constrain binary evolution and provide a new map…

高能天体物理现象 · 物理学 2019-10-16 Astrid Lamberts , Sarah Blunt , Tyson Littenberg , Shea Garrison-Kimmel , Thomas Kupfer , Robyn Sanderson

The upcoming LISA mission is the only experiment that will allow us to study the Milky Way's structure using gravitational wave signals from Galactic double white dwarfs (DWDs). The total number of expected detections exceeds $10^5$.…

星系天体物理 · 物理学 2018-10-10 Valeriya Korol , Elena Maria Rossi , Enrico Barausse

Double white dwarf (DWD) binaries are expected to be very common in the Milky Way, but their intrinsic faintness challenges the detection of these systems. Currently, only a few tens of detached DWDs are know. Such systems offer the best…

高能天体物理现象 · 物理学 2017-07-26 Valeriya Korol , Elena M. Rossi , Paul J. Groot , Gijs Nelemans , Silvia Toonen , Anthony G. A. Brown

White dwarf binaries are the most common compact binaries in the Universe and are especially important for low-frequency gravitational wave detectors such as LISA. There are a number of open questions about binary evolution and the Galactic…

天体物理学 · 物理学 2008-11-26 G. Nelemans

We investigate the isotropic and anisotropic components of the Stochastic Gravitational Wave Background (SGWB) originated from unresolved merging compact binaries in galaxies. We base our analysis on an empirical approach to galactic…

广义相对论与量子宇宙学 · 物理学 2021-11-16 Giulia Capurri , Andrea Lapi , Carlo Baccigalupi , Lumen Boco , Giulio Scelfo , Tommaso Ronconi

Neutron star-white dwarf (NS+WD) binaries offer a unique opportunity for studying NS-specific phenomena with gravitational waves. In this paper, we employ the binary population synthesis technique to study the Galactic population of NS+WDs…

The millisecond pulsars, old-recycled objects spinning with high frequency $\mathcal{O}$ (kHz) sustaining the deformation from their spherical shape, may emit gravitational waves (GW). These are one of the potential candidates contributing…

广义相对论与量子宇宙学 · 物理学 2023-07-18 Deepali Agarwal , Jishnu Suresh , Vuk Mandic , Andrew Matas , Tania Regimbau