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Neural Networks unveiling the properties of gravitational wave background from massive black hole binaries
Matteo Bonetti, Alessia Franchini, Bruno Giovanni Galuzzi +1
Massive black hole binaries (MBHBs) are binary systems formed by black holes with mass exceeding millions of solar masses, expected to form and evolve in the nuclei of galaxies. Th…
Massive Black Holes in Galactic Nuclei
David Izquierdo-Villalba, Alessandro Lupi, John Regan +2
Massive black holes are key inhabitants of the nuclei of galaxies. Moreover, their astrophysical relevance has gained significant traction in recent years, thanks especially to the…
Waveform Modelling for the Laser Interferometer Space Antenna
LISA Consortium Waveform Working Group, Niayesh Afshordi, Sarp Akçay +144
LISA, the Laser Interferometer Space Antenna, will usher in a new era in gravitational-wave astronomy. As the first anticipated space-based gravitational-wave detector, it will exp…
The second data release from the European Pulsar Timing Array I. The dataset and timing analysis
J. Antoniadis, S. Babak, A. -S. Bak Nielsen +66
Pulsar timing arrays offer a probe of the low-frequency gravitational wave spectrum (1 - 100 nanohertz), which is intimately connected to a number of markers that can uniquely trac…
The second data release from the European Pulsar Timing Array III. Search for gravitational wave signals
J. Antoniadis, P. Arumugam, S. Arumugam +95
We present the results of the search for an isotropic stochastic gravitational wave background (GWB) at nanohertz frequencies using the second data release of the European Pulsar T…
Massive Black Hole Binaries as LISA Precursors in the Roman High Latitude Time Domain Survey
Zoltán Haiman, Chengcheng Xin, Tamara Bogdanović +27
With its capacity to observe faint active galactic nuclei (AGN) out to redshift , Roman is poised to reveal a population of b…
The second data release from the European Pulsar Timing Array: VI. Challenging the ultralight dark matter paradigm
Clemente Smarra, Boris Goncharov, Enrico Barausse +68
Pulsar Timing Array experiments probe the presence of possible scalar or pseudoscalar ultralight dark matter particles through decade-long timing of an ensemble of galactic millise…
The second data release from the European Pulsar Timing Array: IV. Implications for massive black holes, dark matter and the early Universe
J. Antoniadis, P. Arumugam, S. Arumugam +111
The European Pulsar Timing Array (EPTA) and Indian Pulsar Timing Array (InPTA) collaborations have measured a low-frequency common signal in the combination of their second and fir…
The second data release from the European Pulsar Timing Array V. Search for continuous gravitational wave signals
J. Antoniadis, P. Arumugam, S. Arumugam +97
We present the results of a search for continuous gravitational wave signals (CGWs) in the second data release (DR2) of the European Pulsar Timing Array (EPTA) collaboration. The m…
Practical approaches to analyzing PTA data: Cosmic strings with six pulsars
Hippolyte Quelquejay Leclere, Pierre Auclair, Stanislav Babak +69
We search for a stochastic gravitational wave background (SGWB) generated by a network of cosmic strings using six millisecond pulsars from Data Release 2 (DR2) of the European Pul…
Quasi-periodic eruptions from impacts between the secondary and a rigidly precessing accretion disc in an extreme mass-ratio inspiral system
Alessia Franchini, Matteo Bonetti, Alessandro Lupi +7
X-ray quasi-periodic eruptions (QPEs) represent a recently discovered example of extreme X-ray variability associated with supermassive black holes. These are high-amplitude bursts…
Gravitational waves from an eccentric population of primordial black holes orbiting Sgr A
Stefano Bondani, Matteo Bonetti, Luca Broggi +3
Primordial black holes (PBH), supposedly formed in the very early Universe, have been proposed as a possible viable dark matter candidate. In this work we characterize the expected…
Computation of stochastic background from extreme mass ratio inspiral populations for LISA
Federico Pozzoli, Stanislav Babak, Alberto Sesana +2
Extreme mass ratio inspirals (EMRIs) are among the primary targets for the Laser Interferometer Space Antenna (LISA). The extreme mass ratios of these systems result in relatively…