Karuppusamy, R. - Résultats de la recherche

Recherche collections:

Trier par:	Afficher:	Format de sortie:

CERN Document Server	2 notices trouvées	La recherche a duré 0.97 secondes.

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: 2306.16227 - PDF; document - PDF;

Notice détaillée

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 Fulltext: PDF;

Notice détaillée

Voir aussi: noms d'auteurs similaires
32	Karuppusamy, R
6	Karuppusamy, Ramesh

Vous désirez être averti des nouveaux résultats pour cette recherche?
Abonnez-vous à une alerte email personnalisée ou inscrivez-vous via le flux RSS.

Vous n'avez pas trouvé ce que vous avez cherché? Essayez votre requête sur d'autres serveurs:
Karuppusamy, R. dans Amazon Karuppusamy, R. dans CERN EDMS Karuppusamy, R. dans CERN Intranet Karuppusamy, R. dans CiteSeer Karuppusamy, R. dans Google Books Karuppusamy, R. dans Google Scholar Karuppusamy, R. dans Google Web Karuppusamy, R. dans IEC	Karuppusamy, R. dans IHS Karuppusamy, R. dans INSPIRE Karuppusamy, R. dans ISO Karuppusamy, R. dans KISS Books/Journals Karuppusamy, R. dans KISS Preprints Karuppusamy, R. dans NEBIS Karuppusamy, R. dans SLAC Library Catalog Karuppusamy, R. dans Scirus

CERN Document Server

Articles, rapports et multimédia de la physique des hautes énergies

Main menu

CERN Accélérateur de science