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Future gravitational wave detectors, such as the Laser Interferometer Space Antenna (\textit{LISA}), will be able to resolve a significant number of the ultra compact stellar-mass binaries in our own Galaxy and its neighborhood. These will…

Astrophysics of Galaxies · Physics 2022-12-21 Maria Georgousi , Nikolaos Karnesis , Valeriya Korol , Mauro Pieroni , Nikolaos Stergioulas

Oscillations in the frequency profile of the stochastic gravitational wave background are a characteristic prediction of small-scale features during inflation. In this paper we present a first investigation of the detection prospects of…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-20 Jacopo Fumagalli , Mauro Pieroni , Sébastien Renaux-Petel , Lukas T. Witkowski

We present a data analysis methodology for a model-independent reconstruction of the spectral shape of a stochastic gravitational wave background with LISA. We improve a previously proposed reconstruction algorithm that relied on a single…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-17 Raphael Flauger , Nikolaos Karnesis , Germano Nardini , Mauro Pieroni , Angelo Ricciardone , Jesús Torrado

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…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Etienne Racine , Curt Cutler

Gravitational waves generated during a first-order electroweak phase transition have a typical frequency which today falls just within the band of the planned space interferometer LISA. Contrary to what happens in the Standard Model, in its…

High Energy Physics - Phenomenology · Physics 2010-04-06 R. Apreda , M. Maggiore , A. Nicolis , A. Riotto

We analyze the sensitivities of a geostationary gravitational wave interferometer mission operating in the sub-Hertz band. Because of its smaller armlength, in the lower part of its accessible frequency band ($10^{-4} - 2 \times 10^{-2}$…

General Relativity and Quantum Cosmology · Physics 2015-03-19 M. Tinto , J. C. N. de Araujo , O. D. Aguiar , M. E. S. Alves

We make the case for the early development of a Mid-Frequency-Band (MFB) gravitational wave (GW) observatory in geosynchronous orbit (73,000 km arm), optimized for the frequency band 10 mHz to 1 Hz. MFB bridges the science acquisition…

Instrumentation and Methods for Astrophysics · Physics 2019-08-09 Peter F. Michelson , Robert L. Byer , Sasha Buchman , Ilya Mandel , John Lipa , Shally Saraf

Future space-based gravitational-wave detectors such as TianQin, LISA, and Taiji are expected to conduct joint observations. Such a multi-detector network will provide complementary viewing angles for the anisotropic stochastic…

General Relativity and Quantum Cosmology · Physics 2025-10-31 Zhi-Yuan Li , Zheng-Cheng Liang , Cong-mao Zhang , Jian-dong Zhang , Yi-Ming Hu

The upcoming gravitational wave (GW) observatory LISA will measure the parameters of sources like extreme-mass-ratio inspirals (EMRIs) to exquisite precision. These measurements will also be sensitive to perturbations to the vacuum,…

General Relativity and Quantum Cosmology · Physics 2025-06-18 Shubham Kejriwal , Francisco Duque , Alvin J. K. Chua , Jonathan Gair

Sapce-borne gravitational wave antennas, such as LISA and LISA-like mission (Taiji and Tianqin), will offer novel perspectives for exploring our Universe while introduce new challenges, especially in data analysis. Aside from the known…

General Relativity and Quantum Cosmology · Physics 2024-09-17 Yuxiang Xu , Minghui Du , Peng Xu , Bo Liang , He Wang

We develop a tool for the analysis of stochastic gravitational wave backgrounds from cosmological first-order phase transitions with LISA: we initiate a template databank for these signals, prototype their searches, and forecast their…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-07 Chiara Caprini , Ryusuke Jinno , Marek Lewicki , Eric Madge , Marco Merchand , Germano Nardini , Mauro Pieroni , Alberto Roper Pol , Ville Vaskonen

One of the main sources of gravitational waves for the LISA space-borne interferometer are galactic binary systems. The waveforms for these sources are represented by eight parameters, of which four are extrinsic, and four are intrinsic to…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Neil J. Cornish , Edward K. Porter

First order phase transitions in the early universe could produce a gravitational-wave background that might be detectable by the Laser Interferometer Space Antenna (LISA). Such an observation would provide evidence for physics beyond the…

General Relativity and Quantum Cosmology · Physics 2023-03-01 Guillaume Boileau , Nelson Christensen , Chloe Gowling , Mark Hindmarsh , Renate Meyer

We discuss prospects for direct measurement of stochastic gravitational wave background around 0.1-1Hz with future space missions. It is assumed to use correlation analysis technique with the optimal TDI variables for two sets of LISA-type…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Naoki Seto

Detecting stochastic background radiation of cosmological origin is an exciting possibility for current and future gravitational-wave (GW) detectors. However, distinguishing it from other stochastic processes, such as instrumental noise and…

General Relativity and Quantum Cosmology · Physics 2023-04-28 Quentin Baghi , Nikolaos Karnesis , Jean-Baptiste Bayle , Marc Besançon , Henri Inchauspé

The Laser Interferometer Space Antenna (LISA) will be the first space-based gravitational wave (GW) observatory. It will measure gravitational wave signals in the frequency regime from 0.1 mHz to 1 Hz. The success of these measurements will…

Instrumentation and Methods for Astrophysics · Physics 2025-02-26 Marie-Sophie Hartig , Sarah Paczkowski , Martin Hewitson , Gerhard Heinzel , Gudrun Wanner

Satellite geodesy uses the measurement of the motion of one or more satellites to infer precise information about the Earth's gravitational field. In this work, we consider the achievable precision limits on such measurements by examining…

In this paper we design and develop several filtering strategies for the analysis of data generated by a resonant bar Gravitational Wave (GW) antenna, with the goal to assess the presence (or absence) in them of long duration monochromatic…

General Relativity and Quantum Cosmology · Physics 2011-05-23 J Alberto Lobo , Miquel Montero

We discuss exploration for isotropic gravitational wave backgrounds around 1 mHz by correlation analysis, targeting both parity odd and even polarization modes. Even though the space interferometer LISA alone cannot probe the two modes due…

General Relativity and Quantum Cosmology · Physics 2021-01-04 Naoki Seto

Fermi LAT observations of gamma-ray pulsars can be used to build a pulsar timing array (PTA) experiment to search for gravitational wave (GW) signals at nanohertz frequencies. At those frequencies, the dominant signal is expected to be a…