Search Results - "Smoot, George F."
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General Relativity and Cosmology: Unsolved Questions and Future Directions
Published in Universe (Basel) (01-12-2016)“…For the last 100 years, General Relativity (GR) has taken over the gravitational theory mantle held by Newtonian Gravity for the previous 200 years. This…”
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Inferring the lensing rate of LIGO–Virgo sources from the stochastic gravitational wave background
Published in Monthly notices of the Royal Astronomical Society (01-02-2021)“…ABSTRACT Strong lensing of gravitational waves (GWs) is more likely for distant sources but predicted event rates are highly uncertain with many astrophysical…”
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Impact of astrophysical binary coalescence time-scales on the rate of lensed gravitational wave events
Published in Monthly notices of the Royal Astronomical Society (01-09-2021)“…ABSTRACT The expected event rate of lensed gravitational wave sources scales with the merger rate at redshift z ≥ 1, where the optical depth for lensing is…”
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4
Joining Bits and Pieces of Reionization History
Published in Physical review letters (14-08-2020)“…Cosmic microwave background (CMB) temperature and polarization anisotropies from Planck have estimated a lower value of the optical depth to reionization (τ)…”
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Einstein rings modulated by wavelike dark matter from anomalies in gravitationally lensed images
Published in Nature astronomy (01-06-2023)“…Unveiling the true nature of dark matter, which manifests itself only through gravity, is one of the principal quests in physics. Leading candidates for dark…”
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6
Interstellar photovoltaics
Published in Scientific reports (26-09-2023)“…The term 'Solar Cell’ is commonly used for Photovoltaics that convert light into electrical energy. However, light can be harvested from various sources not…”
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The Unsettled Number: Hubble’s Tension
Published in Universe (Basel) (01-12-2023)“…One of main sources of uncertainty in modern cosmology is the present rate of the universe’s expansion, H0, called the Hubble constant. Once again, different…”
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A Brief History of Gravitational Waves
Published in Universe (Basel) (01-09-2016)“…This review describes the discovery of gravitational waves. We recount the journey of predicting and finding those waves, since its beginning in the early…”
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The Legacy of Einstein’s Eclipse, Gravitational Lensing
Published in Universe (Basel) (01-01-2020)“…A hundred years ago, two British expeditions measured the deflection of starlight by the Sun’s gravitational field, confirming the prediction made by…”
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Evolution of the afterglow optical spectral shape of GRB 201015A in the first hour: evidence for dust destruction
Published in Monthly notices of the Royal Astronomical Society (22-02-2023)“…ABSTRACT Instruments, such as the ROTSE, TORTORA, Pi of the Sky, MASTER-net, and others have recorded single-band optical flux measurements of gamma-ray bursts…”
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11
Probing features in the primordial perturbation spectrum with large-scale structure data
Published in Monthly notices of the Royal Astronomical Society (21-06-2018)“…Abstract The form of the primordial power spectrum (PPS) of cosmological scalar (matter density) perturbations is not yet constrained satisfactorily in spite…”
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Inflation with whip-shaped suppressed scalar power spectra
Published in Physical review letters (15-08-2014)“…Motivated by the idea that inflation occurs at the grand unified theory symmetry breaking scale, in this Letter we construct a new class of large field…”
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13
Wave dark matter and ultra-diffuse galaxies
Published in Monthly notices of the Royal Astronomical Society (01-06-2021)“…ABSTRACT Dark matter (DM) as a Bose–Einstein condensate, such as the axionic scalar field particles of String Theory, can explain the coldness of DM on large…”
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14
Entropic accelerating universe
Published in Physics letters. B (31-01-2011)“…To accommodate the observed accelerated expansion of the universe, one popular idea is to invoke a driving term in the Friedmann–Lemaître equation of dark…”
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Constraints on features in the inflationary potential from future Euclid data
Published in Monthly notices of the Royal Astronomical Society (11-08-2020)“…ABSTRACT With Planck cosmic microwave background observations, we established the spectral amplitude and tilt of the primordial power spectrum. Evidence of a…”
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Some implications of inverse-Compton scattering of hot cocoon radiation by relativistic jets in gamma-ray bursts
Published in Monthly notices of the Royal Astronomical Society (21-11-2014)“…Long gamma-ray bursts (GRBs) relativistic jets are surrounded by hot cocoons which confine jets during their punch out from the progenitor star. These cocoons…”
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Probing massive stars around gamma-ray burst progenitors
Published in Monthly notices of the Royal Astronomical Society (21-10-2015)“…Long gamma-ray bursts (GRBs) are produced by ultra-relativistic jets launched from core collapse of massive stars. Most massive stars form in binaries and/or…”
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A SiPM photon-counting readout system for Ultra-Fast Astronomy
Published in The Astrophysical journal (2022)“…Very little work has been done searching for astrophysical transient optical emission in the millisecond to nanosecond regime with significant sensitivity. We…”
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Initial On-Sky Performance Testing of the Single-Photon Imager for Nanosecond Astrophysics (SPINA) System
Published in IEEE transactions on instrumentation and measurement (2023)“…This work presents an initial on-sky performance measurement of the Single-Photon Imager for Nanosecond Astrophysics (SPINA) system, part of our Ultra-Fast…”
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Uphold the nuclear weapons test moratorium
Published in Science (American Association for the Advancement of Science) (17-07-2020)Get full text
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