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Scalar induced gravitational waves review
We provide a review on the state-of-the-art of gravitational waves induced by primordial
fluctuations, so-called induced gravitational waves. We present the intuitive physics behind …
fluctuations, so-called induced gravitational waves. We present the intuitive physics behind …
Probing primordial black hole scenarios with terrestrial gravitational wave detectors
It is possible that primordial black holes (PBHs) constitute (or constituted) a significant
fraction of the energy budget of our Universe. Terrestrial gravitational wave detectors offer …
fraction of the energy budget of our Universe. Terrestrial gravitational wave detectors offer …
The NANOGrav 15 yr data set: Search for signals from new physics
A Afzal, G Agazie, A Anumarlapudi… - The Astrophysical …, 2023 - iopscience.iop.org
The 15 yr pulsar timing data set collected by the North American Nanohertz Observatory for
Gravitational Waves (NANOGrav) shows positive evidence for the presence of a low …
Gravitational Waves (NANOGrav) shows positive evidence for the presence of a low …
Recent gravitational wave observation by pulsar timing arrays and primordial black holes: the importance of non-gaussianities
We study whether the signal seen by pulsar timing arrays (PTAs) may originate from
gravitational waves (GWs) induced by large primordial perturbations. Such perturbations …
gravitational waves (GWs) induced by large primordial perturbations. Such perturbations …
[HTML][HTML] Inflationary interpretation of the stochastic gravitational wave background signal detected by pulsar timing array experiments
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 …
Scalar-induced gravitational wave interpretation of PTA data: the role of scalar fluctuation propagation speed
Pulsar timing arrays gathered evidence of the presence of a gravitational wave background
around nHz frequencies. If the gravitational wave background was induced by large and …
around nHz frequencies. If the gravitational wave background was induced by large and …
Footprints of the QCD crossover on cosmological gravitational waves at pulsar timing arrays
Pulsar timing arrays (PTAs) have reported evidence for a stochastic gravitational wave (GW)
background at nanohertz frequencies, possibly originating in the early Universe. We show …
background at nanohertz frequencies, possibly originating in the early Universe. We show …
From inflation to black hole mergers and back again: Gravitational-wave data-driven constraints on inflationary scenarios with a first-principle model of primordial black …
Recent population studies have searched for a subpopulation of primordial black holes
(PBHs) in the gravitational-wave (GW) events so far detected by LIGO/Virgo/KAGRA (LVK) …
(PBHs) in the gravitational-wave (GW) events so far detected by LIGO/Virgo/KAGRA (LVK) …
Primordial non-Gaussianity up to all orders: Theoretical aspects and implications for primordial black hole models
We develop an exact formalism for the computation of the abundance of primordial black
holes (PBHs) in the presence of local non-Gaussianity (NG) in the curvature perturbation …
holes (PBHs) in the presence of local non-Gaussianity (NG) in the curvature perturbation …
Primordial gravitational waves from NANOGrav: A broken power-law approach
We revisit the possibility that the stochastic common-spectrum process recently detected by
the NANOGrav pulsar timing array experiment could be due to primordial gravitational …
the NANOGrav pulsar timing array experiment could be due to primordial gravitational …