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CERN Document Server 2 notices trouvées  La recherche a duré 0.54 secondes. 
1.
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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2.
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;
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Voir aussi: noms d'auteurs similaires
257 Guo, Y
1 Guo, Y -X
3 Guo, Y C
1 Guo, Y J
3 Guo, Y Jay
94 Guo, Y N
104 Guo, Y P
85 Guo, Y Q
4 Guo, Y X
3 Guo, Y Y
26 Guo, Y.
1 Guo, Y.C.
4 Guo, Y.H.
4 Guo, Y.N.
9 Guo, Y.P.
1 Guo, Y.Q.
1 Guo, YY
2 Guo, Ya-Fei
2 Guo, Ya-Nan
20 Guo, Yan
2 Guo, Yan-Jun
1 Guo, Yan-Xin
1 Guo, Yandong
8 Guo, Yang
1 Guo, Yangyang
1 Guo, Yanhui
4 Guo, Yanjun
1 Guo, Yanqiang
2 Guo, Yanqiu
2 Guo, Yanxin
2 Guo, Yao
4 Guo, Yi
1 Guo, Yi-Ke
8 Guo, Yi-Qing
673 Guo, Yicheng
329 Guo, Yifei
1 Guo, Yike
5 Guo, Yimu
1 Guo, Yina
3 Guo, Ying
1 Guo, Yingchun
1 Guo, Yingrong
1 Guo, Yinjing
3 Guo, Yiqing
3 Guo, Yong
2 Guo, Yong-Xin
2 Guo, Yongxin
1 Guo, Yongxing
1 Guo, Yongyi
2 Guo, Youguang
22 Guo, Yu
4 Guo, Yu-Chen
1 Guo, Yu-Guo
1 Guo, Yu-Ping
1 Guo, Yu-Xiang
1 Guo, Yu-wei
3 Guo, Yuan
2 Guo, Yuanxiong
2 Guo, Yuanyuan
1 Guo, Yuchun
1 Guo, Yue
2 Guo, Yuhan
2 Guo, Yuhang
1 Guo, Yuhua
2 Guo, Yujin
1 Guo, Yulan
1 Guo, Yulong
15 Guo, Yun
1 Guo, Yunqiang
1 Guo, Yuping
1 Guo, Yuxian
375 Guo, Yuxiang
2 Guo, Yuxiao
11 Guo, Yuyi
4 Guo, Yuying
1 Guo, Yves ZY
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