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- Browsing The 2nd International Conference "Exploring the Energetic Universe 2019" by Title
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Browsing The 2nd International Conference "Exploring the Energetic Universe 2019" by Title
Now showing items 14-33 of 33
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(NURIS; Energetic Cosmos Laboratory, 2018-05-14)There are two outstanding issues regarding the neutron-star merger event GW170817: the nature of the compact remnant and the interstellar shock. The mass of the remnant of GW170817, ∼2.7 M⊙, implies the remnant could be ...
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(NURIS; Energetic Cosmos Laboratory, 2019-04-02)Cosmic Microwave Background temperature and polarization anisotropies from Planck have estimated lower value of the optical depth to reionization (τ) compared to WMAP.
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(NURIS; Energetic Cosmos Laboratory, 2019-03-05)We examine the Pantheon supernovae distance data compilation in a model independent analysis to test the validity of cosmic history reconstructions beyond the concordance ΛCDM cosmology. Strong deviations are allowed by ...
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(NURIS; Energetic Cosmos Laboratory, 2019-05-01)Within the effective field theory approach to cosmic acceleration, the background expansion can be specified separately from the gravitational modifications. We explore the impact of modified gravity in a background different ...
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(NURIS; Energetic Cosmos Laboratory, 2019-03-05)Considering the dark energy/gravity landscape if next generation surveys of galaxies, cosmic microwave background radiation, and gravitational waves do not find clear modification of gravity, we develop No Run Gravity as ...
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(NURIS; Energetic Cosmos Laboratory, 2018-10-29)No Slip Gravity is a simple modified gravity theory with only one free function and the interesting characteristic that -- unlike many modified gravity theories -- it suppresses growth. This allows it to fit current redshift ...
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(NURIS; Energetic Cosmos Laboratory, 2018-01-04)A subclass of the Horndeski modified gravity theory we call No Slip Gravity has particularly interesting properties: 1) a speed of gravitational wave propagation equal to the speed of light, 2) equality between the effective ...
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(NURIS; Energetic Cosmos Laboratory, 2019-03-19)Fast radio bursts appear to be cosmological signals whose frequency-time structure provides a dispersion measure. The dispersion measure is a convolution of the cosmic distance element and the electron density, and contains ...
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(NURIS; Energetic Cosmos Laboratory, 2019-07-03)Imaging surveys will find many tens to hundreds of thousands of Type Ia supernovae in the next decade, and measure their light curves. In addition to a need for characterizing their types and subtypes, a redshift is required ...
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Probing features in inflaton potential and reionization history with future CMB space observations (NURIS; Energetic Cosmos Laboratory, 2018-03-04)We consider the prospects of probing features in the primordial power spectrum with future Cosmic Microwave Background (CMB) polarization measurements. In the scope of the inflationary scenario, such features in the spectrum ...
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(NURIS; Energetic Cosmos Laboratory, 2018-02-14)Gravitational waves can be focussed by the gravity of an intervening galaxy, just like light, thereby magnifying binary merging events in the far Universe. High magnification by galaxies is found to be responsible for the ...
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(NURIS; Energetic Cosmos Laboratory, 2018-07-14)We explore the constraints on the history of reionization from Planck 2015 CosmicMicrowave Background (CMB) data and we derive the forecasts for future CMB observations.We consider a class of monotonic histories of ...
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(American Physical Society, 2017-12-22)Radiation from accelerating mirrors in a Minkowski spacetime provides insights into the nature of horizons, black holes, and entanglement entropy. We introduce new, simple, symmetric and analytic moving mirror solutions ...
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(NURIS; Energetic Cosmos Laboratory, 2017-09-25)Adding to our previous method for dealing with gravitational modifications at redshiftz&3through a single parameter, we investigate treatment of lower redshift modifications to linear growth observables. We establish sub ...
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(NURIS; Energetic Cosmos Laboratory, 2019-01-10)We identify a binary black hole (BBH) merger that appears to be multiply lensed by an intervening galaxy. The LIGO/Virgo events GW170809 and GW170814 have indistinguishable waveforms separated by 5 days, and overlap on the ...
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(American Physical Society, 2018-02-23)Taking the Planck cosmic microwave background data and the more direct Hubble constant measurement data as unaffected by systematic offsets, the values of the Hubble constant $H_0$ interpreted within the $\Lambda$CDM ...
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(NURIS; Energetic Cosmos Laboratory, 2018-05-01)Self tuning is one of the few methods for dynamically cancelling a large cosmological constantand yet giving an accelerating universe. Its drawback is that it tends to screen all sources of energydensity, including matter. ...
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(NURIS; Energetic Cosmos Laboratory, 2018-12-19)Lack of knowledge about the background expansion history of the Universe from independent observations makes it problematic to obtain a precise and accurate estimation of the Hubble constant H0 from gravitational wave ...
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(NURIS; Energetic Cosmos Laboratory, 2017-12-11)We constrain the history of reionization using the data from Planck 2015 Cosmic Microwave Background (CMB) temperature and polarization anisotropy observations. We also use prior constraints on the reionization history at ...
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(NURIS; Energetic Cosmos Laboratory, 2018-03-21)We explore freezing dark energy, where the evolution of the field approaches that of a cosmological constant at late times. We propose two general, two-parameter forms to describe the class of freezing field models, in ...
Now showing items 14-33 of 33
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