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Assessing the performance of future space-based detectors: Astrophysical foregrounds and individual sources
Alice Perego, Matteo Bonetti, Alberto Sesana +2
The space mission LISA, scheduled for launch in 2035, aims to detect gravitational wave (GW) signals in the milli-Hz band. In the context of the ESA Voyage 2050 Call for new missio…
Test for LISA foreground Gaussianity and stationarity: extreme mass-ratio inspirals
Manuel Piarulli, Riccardo Buscicchio, Federico Pozzoli +3
Extreme Mass Ratio Inspirals (EMRIs) are key observational targets for the Laser Interferometer Space Antenna (LISA) mission. Unresolvable EMRI signals contribute to the formation…
Hanging on the cliff: Extreme mass ratio inspiral formation with local two-body relaxation and post-Newtonian dynamics
Davide Mancieri, Luca Broggi, Matteo Bonetti +1
Extreme mass ratio inspirals (EMRIs) are anticipated to be primary gravitational wave sources for LISA (Laser Interferometer Space Antenna). They form in dense nuclear clusters whe…
Repeating partial disruptions and two-body relaxation
Luca Broggi, Nicholas C. Stone, Taeho Ryu +4
Two-body relaxation may drive stars onto near-radial orbits around a massive black hole, resulting in a tidal disruption event (TDE). In some circumstances, stars are unlikely to u…
Testing EMRI models for Quasi-Periodic Eruptions with 3.5 years of monitoring eRO-QPE1
Joheen Chakraborty, Riccardo Arcodia, Erin Kara +13
Quasi-Periodic Eruptions (QPEs) are luminous X-ray outbursts recurring on hour timescales, observed from the nuclei of a growing handful of nearby low-mass galaxies. Their physical…
Emission signatures from sub-pc Post-Newtonian binaries embedded in circumbinary discs
Alessia Franchini, Matteo Bonetti, Alessandro Lupi +1
We study the dynamical evolution of quasi-circular equal mass massive black hole binaries embedded in circumbinary discs from separations of down to the merger,…
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…
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 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…
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…
Chasing Super-Massive Black Hole merging events with and LISA
L. Piro, M. Colpi, J. Aird +15
The European Space Agency is studying two large-class missions bound to operate in the decade of the 30s, and aiming at investigating the most energetic and violent phenomena in th…
Optical follow-up of the tick-tock massive black hole binary candidate
Massimo Dotti, Matteo Bonetti, Fabio Rigamonti +8
The observation of a population of massive black hole binaries (MBHBs) is key for our complete understanding of galaxy mergers and for the characterization of the expected gravitat…
The competing effect of gas and stars in massive black hole binaries evolution
Elisa Bortolas, Alessia Franchini, Matteo Bonetti +1
Massive black hole binaries are predicted to form during the hierarchical assembly of cosmic structures and will represent the loudest sources of low-frequency gravitational waves…
Binary black hole signatures in polarized light curves
Massimo Dotti, Matteo Bonetti, Daniel J. D'Orazio +2
Variable active galactic nuclei showing periodic light curves have been proposed as massive black hole binary (MBHB) candidates. In such scenarios the periodicity can be due to rel…
Observing the inspiral of coalescing massive black hole binaries with LISA in the era of Multi-Messenger Astrophysics
Alberto Mangiagli, Antoine Klein, Matteo Bonetti +6
Massive black hole binaries (MBHBs) of merging in low redshift galaxies () are sufficiently loud to be detected weeks b…
Merger rate of stellar black hole binaries above the pair instability mass gap
Alberto Mangiagli, Matteo Bonetti, Alberto Sesana +1
In current stellar evolutionary models, the occurrence of pair instability supernovae implies the lack of stellar black holes (BHs) with masses between about $[60, \, 120] \, \rm{M…
Neutron star binary orbits in their host potential: effect on early r-process enrichment
Matteo Bonetti, Albino Perego, Massimo Dotti +1
Coalescing neutron star binary (NSB) systems are primary candidates for -process enrichment of galaxies. The recent detection of -process elements in ultra-faint dwarf (UFD)…
-process nucleosynthesis in the early Universe through fast mergers of compact binaries in triple systems
Matteo Bonetti, Albino Perego, Pedro R. Capelo +2
Surface abundance observations of halo stars hint at the occurrence of -process nucleosynthesis at low metallicity (), possibly within the first yr after…