Results 81 to 90 of about 8,643,173 (282)
Dark Energy After GW170817: Dead Ends and the Road Ahead. [PDF]
Physical Review Letters, 2017 Multimessenger gravitational-wave (GW) astronomy has commenced with the detection of the binary neutron star merger GW170817 and its associated electromagnetic counterparts.
J. Ezquiaga, M. Zumalacárregui
semanticscholar +1 more source
A dark energy multiverse [PDF]
Classical and Quantum Gravity, 2007 We present cosmic solutions corresponding to universes filled with dark and phantom energy, all having a negative cosmological constant. All such solutions contain infinite singularities, successively and equally distributed along time, which can be either big bang/crunchs or big rips singularities.
Robles Pérez, Salvador +3 more
openaire +4 more sources
, 2012 In the present work, we reconsider the idea of holographic dark energy. One of its key points is the formation of the black hole. And then, we propose the so-called "pilgrim dark energy" based on the speculation that the repulsive force contributed by ...
Wei, Hao
core +1 more source
Evidence for Emergent Dark Energy
Astrophysical Journal, 2020 We introduce a generalized form of an emergent dark energy model with one degree of freedom for the dark energy sector that has the flexibility to include both the ΛCDM model as well as the Phenomenologically Emergent Dark Energy (PEDE) model proposed by
Xiaolei Li, A. Shafieloo
semanticscholar +1 more source
A Simple Phenomenological Emergent Dark Energy Model can Resolve the Hubble Tension [PDF]
Astrophysical Journal, 2019 Motivated by the current status of cosmological observations and significant tensions in the estimated values of some key parameters assuming the standard ΛCDM model, we propose a simple but radical phenomenological emergent dark energy model where dark ...
Xiaolei Li, A. Shafieloo
semanticscholar +1 more source
Fingerprinting dark energy [PDF]
Physical Review D, 2009 11 pages, 5 figures, minor changes to match published ...
Sapone, Domenico, Kunz, Martin
openaire +4 more sources
The Astronomical JournalNeural posterior estimation (NPE), a type of amortized variational inference, is a computationally efficient means of constructing probabilistic catalogs of light sources from astronomical images.
Aakash Patel +4 more
doaj +1 more source
Vacuum pressure, dark energy and dark matter [PDF]
, 2012 It has been argued that the correct, i.e. positive, sign of quantum vacuum energy density, or more properly, negative sign of quantum vacuum pressure, requires not a very large number, e.g.
Broda, Bogusław, Szanecki, Michał
core +2 more sources
Dark Energy after GW170817 and GRB170817A. [PDF]
Physical Review Letters, 2017 The observation of GW170817 and its electromagnetic counterpart implies that gravitational waves travel at the speed of light, with deviations smaller than a few×10^{-15}.
P. Creminelli, F. Vernizzi
semanticscholar +1 more source
Physics Letters BThe 12C+12C fusion reaction at deep subbarrier energies is important for understanding the carbon burning process in massive star and explosive binary systems.
Weike Nan +19 more
doaj +1 more source