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LISA Definition Study Report
/ Colpi, Monica (INFN, Milan Bicocca) ; Danzmann, Karsten (Hannover, Max Planck Inst. Grav.) ; Hewitson, Martin (Hannover, Max Planck Inst. Grav.) ; Jetzer, Philippe (U. Zurich (main)) ; Nelemans, Gijs (Nijmegen U., IMAPP) ; Petiteau, Antoine (IRFU, Saclay) ; Shoemaker, David (MIT, MKI) ; Sopuerta, Carlos (ICE, Bellaterra) ; Stebbins, Robin (Colorado U.) ; Tanvir, Nial (Leicester U.) et al.
The Laser Interferometer Space Antenna (LISA) is the first scientific endeavour to detect and study gravitational waves from space. [...]
arXiv:2402.07571.
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155.
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The second data release from the European Pulsar Timing Array - IV. Implications for massive black holes, dark matter, and the early Universe
/ EPTA Collaboration
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 first data releases respectively, with the correlation properties of a gravitational wave background (GWB). Such signal may have its origin in a number of physical processes including a cosmic population of inspiralling supermassive black hole binaries (SMBHBs); inflation, phase transitions, cosmic strings and tensor mode generation by non-linear evolution of scalar perturbations in the early Universe; oscillations of the Galactic potential in the presence of ultra-light dark matter (ULDM). [...]
arXiv:2306.16227.-
2024-05-01 - 30 p.
- Published in : Astron. Astrophys. 685 (2024) A94
Fulltext: document - PDF; 2306.16227 - PDF;
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The International Pulsar Timing Array second data release: Search for an isotropic Gravitational Wave Background
/ Antoniadis, J. (FORTH, Heraklion ; Bonn, Max Planck Inst., Radioastron. ; Argelander Inst. Astron.) ; Arzoumanian, Z. (NASA, Goddard) ; Babak, S. (APC, Paris) ; Bailes, M. (Swinburne U. Tech., Hawthorn ; ARC, CoEPP, Australia) ; Nielsen, A.-S. Bak (Bonn, Max Planck Inst., Radioastron. ; Bielefeld U.) ; Baker, P.T. (Widener U.) ; Bassa, C.G. (ASTRON, Dwingeloo) ; Becsy, B. (Montana State U.) ; Berthereau, A. (LPC2E, Orleans ; Station Radioastronomy, Nancay) ; Bonetti, M. (Milan Bicocca U. ; INFN, Milan Bicocca) et al.
We searched for an isotropic stochastic gravitational wave background in the second data release of the International Pulsar Timing Array, a global collaboration synthesizing decadal-length pulsar-timing campaigns in North America, Europe, and Australia. In our reference search for a power law strain spectrum of the form $h_c = A(f/1\,\mathrm{yr}^{-1})^{\alpha}$, we found strong evidence for a spectrally-similar low-frequency stochastic process of amplitude $A = 3.8^{+6.3}_{-2.5}\times10^{-15}$ and spectral index $\alpha = -0.5 \pm 0.5$, where the uncertainties represent 95% credible regions, using information from the auto- and cross-correlation terms between the pulsars in the array. [...]
arXiv:2201.03980.-
2022-01-27 - 15 p.
- Published in : Mon. Not. R. Astron. Soc. 510 (2022) 4873
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Unveiling the gravitational universe at $\mu$-Hz frequencies
/ Sesana, Alberto (Milan Bicocca U.) ; Korsakova, Natalia (Cote d'Azur Observ., Nice) ; Sedda, Manuel Arca (U. Heidelberg (main)) ; Baibhav, Vishal (Johns Hopkins U. (main)) ; Barausse, Enrico (SISSA, Trieste) ; Barke, Simon (U. Florida, Gainesville (main)) ; Berti, Emanuele (Johns Hopkins U. (main)) ; Bonetti, Matteo (Milan Bicocca U.) ; Capelo, Pedro R. (U. Zurich (main)) ; Caprini, Chiara (APC, Paris) et al.
We propose a space-based interferometer surveying the gravitational wave (GW) sky in the milli-Hz to $\mu$-Hz frequency range. By the 2040s', the $\mu$-Hz frequency band, bracketed in between the Laser Interferometer Space Antenna (LISA) and pulsar timing arrays, will constitute the largest gap in the coverage of the astrophysically relevant GW spectrum. [...]
arXiv:1908.11391.-
2021-09-04 - 28 p.
- Published in : Exp. Astron. 51 (2021) 1333-1383
Fulltext: 1908.11391 - PDF; document - PDF;
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New Developments in Ion Sources at IBA
/ Laycock, S ; Baeten, F ; Bonetti, M ; Conard, E ; Dom, C ; Jongen, Y ; Paraf, E
1990
External link: Published version from JACoW
In : 2nd European Particle Accelerator Conference, Nice, France, 12 - 16 Jun 1990, pp.653
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