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We study the interaction of a gravitational wave (GW) with a plasma that is strongly magnetized. The GW is considered a small disturbance, and the plasma is modeled by the general relativistic analogue of the induction equation of ideal MHD…

Astrophysics · Physics 2008-11-26 H. Isliker , L. Vlahos

One of the most promising ways of detecting primordial gravitational waves generated during inflation is to observe B-modes of polarization, generated by Thomson scattering after reionization, in the cosmic microwave background (CMB). Large…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Scott Dodelson

We discuss the possibility to obtain an electromagnetic emission accompanying the gravitational waves emitted in the coalescence of a compact binary system. Motivated by the existence of black hole configurations with open magnetic field…

High Energy Astrophysical Phenomena · Physics 2015-05-27 S. Capozziello , M. De Laurentis , I. De Martino , M. Formisano , D. Vernieri

We investigate the gravitational wave background produced by magnetars. The statistical properties of these highly magnetized stars were derived by population synthesis methods and assumed to be also representative of extragalactic objects.…

Astrophysics · Physics 2009-11-16 Tania Regimbau , José Antonio de Freitas Pacheco

This article presents a comprehensive analysis of the physics of gravitational waves, exploring both the theoretical foundations and the most recent experimental advances. After a general introduction to the theory of general relativity and…

General Relativity and Quantum Cosmology · Physics 2026-02-24 José P. S. Lemos

We study the imprint of magnetic fields on gravitational waves emitted during the inspiral phase of eccentric binary neutron star systems. While observations indicate that neutron stars typically exhibit strong magnetic fields in the range…

High Energy Astrophysical Phenomena · Physics 2025-09-18 R. Prasad , Anushka Doke , Prayush Kumar

Using the cross-correlation data from the first three observing runs of the LIGO-Virgo-KAGRA Collaboration, we search for a gravitational-wave background (GWB) from primordial black holes, arising from the superposition of compact binary…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-01 Tore Boybeyi , Sebastien Clesse , Sachiko Kuroyanagi , Mairi Sakellariadou

The LISA (Laser Interferometer Space Antenna) mission will observe in the low frequency band from 0.1 mHz to 1 Hz. In this regime, we expect the galactic binaries to be the dominant (by number) sources of gravitational waves signal.…

General Relativity and Quantum Cosmology · Physics 2022-11-15 Adrien Bourgoin , Etienne Savalle , Christophe Le Poncin-Lafitte , Stéphane Mathis , Marie-Christine Angonin , Antoine Strugarek

The chiral gravitational wave background (GWB) can be produced by axion-like fields in the early universe. We perform parameter estimation for two types of chiral GWB with the LISA-Taiji network: axion-dark photon coupling and…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-15 Hong Su , Baoyu Xu , Ju Chen , Chang Liu , Yun-Long Zhang

Gravitational waves are perturbations in the spacetime that propagate at the speed of light. The study of such phenomenon is interesting because many cosmological processes and astrophysical objects, such as binary systems, are potential…

Cosmology and Nongalactic Astrophysics · Physics 2015-04-27 E. F. D. Evangelista , J. C. N. de Araujo

This paper reviews gravitational wave sources and their detection. One of the most exciting potential sources of gravitational waves are coalescing binary black hole systems. They can occur on all mass scales and be formed in numerous ways,…

Instrumentation and Methods for Astrophysics · Physics 2016-02-19 Hyung Mok Lee , Eric-Olivier Le Bigot , ZhiHui Du , ZhangXi Lin , XiangYu Guo , LinQing Wen , Khun Sang Phukon , Vihan Pandey , Sukanta Bose , Xi-Long Fan , Martin Hendry

We consider the generation of gravitational waves by primordial helical inverse cascade magnetohydrodynamic (MHD) turbulence produced by bubble collisions at the electroweak phase transition. We extend the previous study \cite{kgr08} by…

The two independent ``plus" and ``cross" polarization waveforms associated with the gravitational waves emitted by inspiralling, non-spinning, compact binaries are presented, ready for use in the data analysis of signals received by future…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Luc Blanchet , Bala R. Iyer , Clifford M. Will , Alan G. Wiseman

Gravitational waves are generated during first-order phase transitions, either by turbolence or by bubble collisions. If the transition takes place at temperatures of the order of the electroweak scale, the frequency of these gravitational…

General Relativity and Quantum Cosmology · Physics 2009-11-07 Riccardo Apreda , Michele Maggiore , Alberto Nicolis , Antonio Riotto

Gravitational waveforms and production could be considerably affected by gravitomagnetic corrections considered in relativistic theory of orbits. Beside the standard periastron effect of General Relativity, new nutation effects come out…

General Relativity and Quantum Cosmology · Physics 2015-05-14 S. Capozziello , M. De Laurentis , L. Forte , F. Garufi , L. Milano

Recently much controversy has been shed on BICEP 2 experiments for the concerning this validity or not and a possible set of new experiments to detect primordial inflation and gravitational waves. Since gravitational waves imply the…

General Relativity and Quantum Cosmology · Physics 2015-01-13 L. C. G. Andrade

Soft gamma repeaters are identified as highly magnetized (B$\approx 10^{14}$ Gauss) neutron stars. Magnetic stresses induce tectonic activity, and field annihilation in faults is the ultimate energy source for the observed $\gamma$-ray…

Astrophysics · Physics 2007-05-23 J. A. de Freitas Pacheco

We study the gravitational wave (GW) signal sourced by primordial turbulence that is assumed to be present at cosmological phase transitions like the electroweak and quantum chromodynamics phase transitions. We consider various models of…

General Relativity and Quantum Cosmology · Physics 2021-06-28 Axel Brandenburg , Grigol Gogoberidze , Tina Kahniashvili , Sayan Mandal , Alberto Roper Pol , Nakul Shenoy

The stochastic gravitational wave background (SGWB) offers a new opportunity to observe signals of primordial features from inflationary models. We study their detectability with future space-based gravitational waves experiments, focusing…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-17 Matteo Braglia , Xingang Chen , Dhiraj Kumar Hazra