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A phase-locking configuration for LISA is proposed that provides a significantly simpler mode of operation. The scheme provides one Sagnac signal readout inherently insensitive to laser frequency noise and optical bench motion for a…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Daniel A. Shaddock

As the theme for the future L3 Cosmic Vision mission, ESA has recently chosen the `Gravitational Wave Universe'. Within this call, a mission concept called eLISA has been proposed. This observatory has a current initial configuration…

General Relativity and Quantum Cosmology · Physics 2015-09-09 Edward K. Porter

This paper investigates the impact of a lack of knowledge of the instrumental noise on the characterisation of stochastic gravitational wave backgrounds with the Laser Interferometer Space Antenna (LISA). We focus on constraints on modelled…

General Relativity and Quantum Cosmology · Physics 2023-08-03 Martina Muratore , Jonathan Gair , Lorenzo Speri

Recent advances in numerical relativity provide a detailed description of the waveforms of coalescing massive black hole binaries (MBHBs), expected to be the strongest detectable LISA sources. We present a preliminary study of LISA's…

Astrophysics · Physics 2014-11-18 J. I. Thorpe , S. T. McWilliams , B. J. Kelly , R. P. Fahey , K. Arnaud , J. G. Baker

Recent work highlights that tens of Galactic double neutron stars are likely to be detectable in the millihertz band of the space-based gravitational-wave observatory, LISA. Kyutoku and Nishino point out that some of these binaries might be…

High Energy Astrophysical Phenomena · Physics 2020-03-11 Eric Thrane , Stefan Osłowski , Paul Lasky

The laser-interferometer space antenna (LISA) will be launched in the mid 2030s. It promises to observe the coalescence of massive black-hole (BH) binaries with signal-to-noise ratios (SNRs) reaching thousands. Crucially, it will detect…

General Relativity and Quantum Cosmology · Physics 2024-11-20 Alexandre Toubiana , Lorenzo Pompili , Alessandra Buonanno , Jonathan R. Gair , Michael L. Katz

Due to the sheer complexity of the Laser Interferometer Space Antenna (LISA) space mission, data gaps arising from instrumental irregularities and/or scheduled maintenance are unavoidable. Focusing on merger-dominated massive black hole…

General Relativity and Quantum Cosmology · Physics 2025-03-07 Ollie Burke , Sylvain Marsat , Jonathan R. Gair , Michael L. Katz

The Laser Interferometer Space Antenna (LISA) will detect ~ 100 galactic binary systems comprised of black holes (BHs) and neutron stars (NSs). Identifying the nature of the constituents of these binaries as BHs or NSs, and distinguishing…

High Energy Astrophysical Phenomena · Physics 2025-07-16 Hannah Middleton , Panagiota Kolitsidou , Antoine Klein , Connor Adam , Rowan Chalmers , Alberto Vecchio

The data produced by the future space-based millihertz gravitational-wave detector LISA will require nontrivial pre-processing, which might affect the science results. It is crucial to demonstrate the feasibility of such processing…

Instrumentation and Methods for Astrophysics · Physics 2023-05-22 Jean-Baptiste Bayle , Olaf Hartwig , Marc Lilley , Aurélien Hees , Christian Chapman-Bird , Graham Woan , Peter Wolf

LISA is the proposed ESA-NASA gravitational wave detector in the 0.1 mHz - 0.1 Hz band. LISA Pathfinder is the down-scaled version of a single LISA arm. The arm -- named Doppler link -- can be treated as a differential accelerometer,…

General Relativity and Quantum Cosmology · Physics 2012-04-20 Giuseppe Congedo

The planned space-based gravitational wave detector, LISA, will provide a fundamentally new means of studying the orbital alignment of close white dwarf binaries. However, due to the inherent symmetry of their gravitational wave signals, a…

General Relativity and Quantum Cosmology · Physics 2025-08-13 Naoki Seto

With the recent strong developments of TianQin and Taiji, we now have an increasing chance to make a correlation analysis in the mHz band by operating them together with LISA. Assuming two LISA-like triangular detectors at general…

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

Current expectations on the signal to noise ratios and masses of supermassive black holes which the Laser Interferometer Space Antenna (LISA) can observe are based on using in matched filtering only the dominant harmonic of the inspiral…

General Relativity and Quantum Cosmology · Physics 2008-11-26 K. G. Arun , Bala R. Iyer , B. S. Sathyaprakash , Siddhartha Sinha

LISA is an array of three spacecraft in an approximately equilateral triangle configuration which will be used as a low-frequency gravitational wave detector. We present here new generalizations of the Michelson- and Sagnac-type time-delay…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Daniel A. Shaddock , Massimo Tinto , Frank B. Estabrook , J. W. Armstrong

We discuss spatial fluctuations in the gravitational wave background arising from unresolved Galactic binary sources, such as close white dwarf binaries, due to the fact the galactic binary source distribution is anisotropic. We introduce a…

Astrophysics · Physics 2009-11-10 Naoki Seto , Asantha Cooray

Designed to detect gravitational waves in the lower-frequency band, the space mission LISA will open a new window to astronomy after its launch in the 2030s. Each LISA spacecraft houses two optical benches that require the exchange of a…

Variations in the instrumental noise of the Laser Interferometer Space Antenna (LISA) over time are expected as a result of e.g. scheduled satellite operations or unscheduled glitches. We demonstrate that these fluctuations can be leveraged…

General Relativity and Quantum Cosmology · Physics 2025-05-07 James Alvey , Uddipta Bhardwaj , Valerie Domcke , Mauro Pieroni , Christoph Weniger

The space gravitational wave detector LISA is expected to detect $\sim10^4$ of nearly monochromatic binaries, after $\sim 10$\.yr operation. We propose to measure the inspiral/outspiral binary fluxes in the frequency space, by processing…

High Energy Astrophysical Phenomena · Physics 2022-02-09 Naoki Seto

LISA is an upcoming ESA mission that will detect gravitational waves in space by interferometrically measuring the separation between free-falling test masses at picometer precision. To reach the desired performance, LISA will employ the…

General Relativity and Quantum Cosmology · Physics 2023-11-23 Lennart Wissel , Olaf Hartwig , Jean-Baptiste Bayle , Martin Staab , Ewan D. Fitzsimons , Martin Hewitson , Gerhard Heinzel

The Laser Interferometer Space Antenna (LISA) will open a rich discovery space in the milli-Hertz gravitational wave band. In addition to the anticipated signals from many millions of binary systems, this band may contain new and previously…

General Relativity and Quantum Cosmology · Physics 2019-01-16 Travis Robson , Neil J. Cornish
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