[HTML][HTML] Inflationary interpretation of the stochastic gravitational wave background signal detected by pulsar timing array experiments
S Vagnozzi - Journal of High Energy Astrophysics, 2023 - Elsevier
Various pulsar timing array (PTA) experiments (NANOGrav, EPTA, PPTA, CPTA, including
data from InPTA) very recently reported evidence for excess red common-spectrum signals …
data from InPTA) very recently reported evidence for excess red common-spectrum signals …
What is the source of the PTA GW signal?
The most conservative interpretation of the nHz stochastic gravitational wave background
(SGWB) discovered by NANOGrav and other pulsar timing array (PTA) collaborations is …
(SGWB) discovered by NANOGrav and other pulsar timing array (PTA) collaborations is …
Singling out SO (10) GUT models using recent PTA results
In this work, we construct promising model-building routes towards SO (10) grand unified
theory inflation and examine their ability to explain the recent pulsar timing arrays (PTAs) …
theory inflation and examine their ability to explain the recent pulsar timing arrays (PTAs) …
Ultralow mass primordial black holes in the early Universe can explain the pulsar timing array signal
Pulsar timing array collaborations have recently announced the discovery of a stochastic
gravitational wave (GW) background at nanohertz frequencies. We analyze the GW signals …
gravitational wave (GW) background at nanohertz frequencies. We analyze the GW signals …
Did we hear the sound of the Universe boiling? Analysis using the full fluid velocity profiles and NANOGrav 15-year data
In this paper, we analyse sound waves arising from a cosmic phase transition where the full
velocity profile is taken into account as an explanation for the gravitational wave spectrum …
velocity profile is taken into account as an explanation for the gravitational wave spectrum …
Can the gravitational wave background feel wiggles in spacetime?
G Ye, A Silvestri - The Astrophysical Journal Letters, 2024 - iopscience.iop.org
Recently the international pulsar timing array collaboration has announced the first strong
evidence for an isotropic gravitational-wave background (GWB). We propose that rapid …
evidence for an isotropic gravitational-wave background (GWB). We propose that rapid …
Nano-Hertz gravitational waves from collapsing domain walls associated with freeze-in dark matter in light of pulsar timing array observations
Evidence for a stochastic gravitational wave background in the nHz frequency band is
recently reported by four pulsar timing array collaborations NANOGrav, EPTA, CPTA, and …
recently reported by four pulsar timing array collaborations NANOGrav, EPTA, CPTA, and …
Probing the early Universe cosmology with NANOGrav: Possibilities and limitations
A stochastic gravitational wave background is a prediction of a number of astrophysical and
cosmological phenomena including early Universe cosmology. Recently, the NANOGrav …
cosmological phenomena including early Universe cosmology. Recently, the NANOGrav …
Phase transition during inflation and the gravitational wave signal at pulsar timing arrays
H An, B Su, H Tai, LT Wang, C Yang - Physical Review D, 2024 - APS
The gravitational wave (GW) signal offers a promising window into the dynamics of the early
Universe. The recent results from the pulsar timing arrays (PTAs) could be the first glimpse of …
Universe. The recent results from the pulsar timing arrays (PTAs) could be the first glimpse of …