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Double white dwarfs could be important sources for space based gravitational wave detectors like OMEGA and LISA. We use population synthesis to predict the current population of double white dwarfs in the Galaxy and the gravitational waves…

天体物理学 · 物理学 2007-05-23 G. Nelemans , S. F. Portegies Zwart , F. Verbunt

We explore the prospects of detecting of Galactic double white dwarf (DWD) binaries with the space-based gravitational wave (GW) observatory TianQin. In this work, we analyze both a sample of currently known DWDs and a realistic synthetic…

高能天体物理现象 · 物理学 2020-09-25 Shun-Jia Huang , Yi-Ming Hu , Valeriya Korol , Peng-Cheng Li , Zheng-Cheng Liang , Yang Lu , Hai-Tian Wang , Shenghua Yu , Jianwei Mei

In an earlier investigation, we proposed population boundaries for both inspiralling and mass-transferring double white dwarf (DWD) systems in the distance independent "absolute" amplitude-frequency domain of the proposed space-based…

天体物理学 · 物理学 2015-05-13 Ravi kumar Kopparapu

The discovery of the most compact detached white dwarf (WD) binary SDSS J065133.33+284423.3 has been discussed in terms of probing the tidal effects in white dwarfs. This system is also a verification source for the space-based…

太阳与恒星天体物理 · 物理学 2015-06-22 Sweta Shah , Gijs Nelemans

Supposing the Laser Interferometer Space Antenna (LISA) gravitational wave (GW) detector, we exhibit the detectability of a hypothetical smooth crossover in the early universe beyond the Standard Model of particle physics through the…

宇宙学与河外天体物理 · 物理学 2025-03-04 Albert Escrivà , Ryoto Inui , Yuichiro Tada , Chul-Moon Yoo

Galactic double white dwarfs will be prominent gravitational-wave sources for the Laser Interferometer Space Antenna (LISA). While previous studies have primarily focused on formation scenarios in which binaries form and evolve in…

The stochastic gravitational wave background (SGWB) is one of the main detection targets for future millihertz space-borne gravitational-wave observatories such as the \ac{LISA}, TianQin, and Taiji. For a single LISA-like detector, a…

广义相对论与量子宇宙学 · 物理学 2025-11-10 Jun Cheng , En-Kun Li , Jianwei Mei

Cosmic strings play a crucial role in enhancing our understanding of the fundamental structure and evolution of the universe, unifying our knowledge of cosmology, and potentially unveiling new physical laws and phenomena. The advent and…

广义相对论与量子宇宙学 · 物理学 2025-03-07 Xianghe Ma , Borui Wang , Nan Yang , Jin Li , Brendan McCane , Mengfei Sun , Jie Wu , Minghui Zhang , Yan Meng

White dwarfs comprise 95% of all stellar remnants, and are thus an excellent tracer of old stellar populations in the Milky Way. Current and planned telescopes are not able to directly probe the white dwarf population in its entirety due to…

星系天体物理 · 物理学 2020-09-14 Katelyn Breivik , Chiara M. F. Mingarelli , Shane L. Larson

The Laser Interferometer Space Antenna (LISA) is expected to detect thousands of individually resolved gravitational wave sources, overlapping in time and frequency, on top of unresolved astrophysical and/or primordial backgrounds.…

星系天体物理 · 物理学 2026-01-09 Rahul Srinivasan , Enrico Barausse , Natalia Korsakova , Roberto Trotta

Data analysis for the proposed Laser Interferometer Space Antenna (LISA) will be complicated by the huge number of sources in the LISA band. Throughout much of the band, galactic white dwarf binaries (GWDBs) are sufficiently dense in…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Etienne Racine , Curt Cutler

Recently, Tamanini & Danielski (2019) discussed the possibility to detect circumbinary exoplanets (CBPs) orbiting double white dwarfs (DWDs) with the Laser Interferometer Space Antenna (LISA). Extending their methods and criteria, we…

地球与行星天体物理 · 物理学 2021-11-19 Yacheng Kang , Chang Liu , Lijing Shao

A plethora of gravitational wave stochastic backgrounds populate the sensitivity window of the Laser Interferometer Space Antenna. We show that LISA can detect the anisotropy of the background corresponding to the multipole moments of order…

天体物理学 · 物理学 2014-10-13 C. Ungarelli , A. Vecchio

Many gravitational wave (GW) sources are expected to have non-negligible eccentricity in the millihertz band. These highly eccentric compact object binaries may commonly serve as a progenitor stage of GW mergers, particularly in dynamical…

高能天体物理现象 · 物理学 2026-05-28 Zeyuan Xuan , Smadar Naoz , Bence Kocsis , Erez Michaely

We build an analytical framework to study the observability of anisotropies and a net chiral polarization of the Stochastic Gravitational Wave Background (SGWB) with a generic network of ground-based detectors. We apply this formalism to…

广义相对论与量子宇宙学 · 物理学 2023-04-14 Giorgio Mentasti , Carlo Contaldi , Marco Peloso

LISA data analysis represents one of the most challenging tasks ahead for the future of gravitational-wave (GW) astronomy. Characterizing the instrument's noise properties while fitting for all the other detectable sources is a key…

广义相对论与量子宇宙学 · 物理学 2025-10-21 Alessandro Santini , Martina Muratore , Jonathan Gair , Olaf Hartwig

Based on the rate of resolved stellar origin black hole and neutron star mergers measured by LIGO and Virgo, it is expected that these detectors will also observe an unresolved Stochastic Gravitational Wave Background (SGWB) by the time…

宇宙学与河外天体物理 · 物理学 2020-07-22 Mauro Pieroni , Enrico Barausse

The problem of the detection and mapping of a stochastic gravitational wave background (SGWB), either of cosmological or astrophysical origin, bears a strong semblance to the analysis of CMB anisotropy and polarization. The basic statistic…

广义相对论与量子宇宙学 · 物理学 2008-12-18 Sanjit Mitra , Sanjeev Dhurandhar , Tarun Souradeep , Albert Lazzarini , Vuk Mandic , Sukanta Bose , Stefan Ballmer

Galactic double white dwarfs are predominant sources of gravitational waves in the millihertz frequencies accessible to space-borne gravitational wave detectors. With advances in multi-messenger astronomy, an increasing number of double…

太阳与恒星天体物理 · 物理学 2024-12-06 Hong-Ming Jin , Bo Ma , Yong Shao , Yan Wang

The Laser Interferometer Space Antenna (LISA) will open a new observational window in the millihertz gravitational-wave band, enabling the detection of tens of thousands of compact stellar remnant binaries across the Milky Way. Most of…

高能天体物理现象 · 物理学 2026-03-09 Irwin Khai Cheng Tay , Valeriya Korol , Thibault Lechien