Results 31 to 40 of about 468,012 (314)

DARK ENERGY IN MOTION [PDF]

International Journal of Modern Physics D, 2006
Recent large-scale peculiar velocity surveys suggest that large matter volumes could be moving with appreciable velocity with respect to the CMB rest frame. If confirmed, such results could conflict with the Cosmological Principle according to which the matter and CMB rest frames should converge on very large scales.
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Thermodynamics of dark energy [PDF]

Fortschritte der Physik, 2008
AbstractThermodynamic properties of dark energy are discussed assuming that dark energy is described in terms of a selfinteracting complex scalar. We first show that, under certain assumptions, selfinteracting complex scalar field theories are equivalent to purely kinetic k‐essence models.
Bilić, Nevenko, Bilić, Neven
openaire   +4 more sources

Barrow entropic dark energy: A member of generalized holographic dark energy family

Physics Letters B, 2022
The holographic cut-off, in the formalism of generalized holographic dark energy (HDE), is generalized to depend on LIR=LIR(Lp,L˙p,L¨p,⋯,Lf,L˙f,⋯,a), where Lp and Lf are the particle horizon and future horizon respectively, and a is the scale factor of ...
Shin'ichi Nojiri, Sergei D. Odintsov, Tanmoy Paul   +2 more
doaj   +1 more source

Dark Energy from Cosmological Energy Conservation

Advances in Astronomy, 2023
The value of the gravitational wave energy density is unknown. Current progress in gravitational wave detection suggests that the energy density of the stochastic gravitational wave background (SGWB) will be estimated in the next decades. A derivation of
Manuel Uruena Palomo
doaj   +1 more source

Accelerated Universe from Modified Chaplygin Gas and Tachyonic Fluid

Universe, 2022
A cosmological model with an exotic fluid is investigated. We show that the equation of state of this “modified Chaplygin” gas can describe the current accelerated expansion of the universe.
Hachemi Benaoum
doaj   +1 more source

Dark Energy simulations [PDF]

Physics of the Dark Universe, 2012
63 pages, 8 figures. Invited Review for the special issue "The next decade in Dark Matter and Dark Energy" of the new Open Access journal "Physics of the Dark Universe".
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The Dark Energy Survey: more than dark energy – an overview [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
32 pages, 15 figures; a revised Figure 1 and minor changes, to match the published MNRAS ...
Vinu Vikram, Jelena Aleksić, Enrique Gaztanaga, H. Wilcox, Marc Manera, August E. Evrard, Nikolay Kuropatkin, Shantanu Desai, Tesla E. Jeltema, Robert C. Nichol, J. Etherington, Robert J. Brunner, Robert J. Brunner, Eli S. Rykoff, Eli S. Rykoff, Adam Amara, S. Allam, Manda Banerji, T. M. C. Abbott, Michael Schubnell, Carlos E. Cunha, Keith Bechtol, Jonathan Blazek, Sarah Bridle, Marcelle Soares-Santos, Daniel Thomas, Daniel Thomas, B. Flaugher, Yanming Zhang, Robert Connon Smith, Joseph J. Mohr, Joaquin Vieira, Joaquin Vieira, Huan Lin, L. Clerkin, Juan Estrada, Jennifer L. Marshall, Marcella Carollo, Richard G. McMahon, Flavia Sobreira, Ofer Lahav, D. A. Finley, Hiranya V. Peiris, Ryan J. Foley, Francisco J. Castander, A. A. Plazas, David J. James, Risa H. Wechsler, Risa H. Wechsler, Stephanie Jouvel, Thomas E. Collett, E. Bertin, Alexandre Refregier, Brian Nord, Jon J Thaler, Alex Drlica-Wagner, Richard Kessler, Brian Yanny, A. Roodman, A. Roodman, Alex Merson, Daniel A. Goldstein, Daniel A. Goldstein, E. J. Sanchez, A. Benoit-Lévy, A. Benoit-Lévy, Tamara M. Davis, C. Bonnett, G. Gutierrez, Antonella Palmese, Will J. Percival, Claudia Maraston, A. K. Romer, Diego Capozzi, A. Papadopoulos, A. Papadopoulos, K. Honscheid, M. Carrasco-Kind, M. Carrasco-Kind, Robert A. Gruendl, Robert A. Gruendl, Maayane T. Soumagnac, Basilio X. Santiago, Kyler Kuehn, G. Tarle, F. B. Abdalla, Jochen Weller, Paul Martini, H. T. Diehl, Eric H. Neilsen, J. Fabbri, Gary Bernstein, M. Sako, Marcos Lima, Krishna Naidoo, S. L. Reed, G. B. Caminha, Juan Garcia-Bellido, J. Carretero, J. Carretero, Erin Sheldon, Ashley J. Ross, Mathew Smith, Pablo Fosalba, C. B. D'Andrea, Joshua A. Frieman, Joshua A. Frieman, E. Suchyta, David Bacon, Donnacha Kirk, A. L. King, David Brooks, W. C. Wester, F. Ostrovski, Richard G. Kron, Douglas L. Tucker, Eduardo Rozo, V. Scarpine, Bhuvnesh Jain, D. W. Gerdes, D. L. Burke, D. L. Burke, L. N. da Costa, J. Carlsen, A. Carnero-Rosell, Tianjun Li, M. E. C. Swanson, Alistair R. Walker, Marcio A. G. Maia, Peter Doel, R. C. Thomas, L. Whiteway, Christopher J. Conselice, Xan Morice-Atkinson, John Peoples, I. Sadeh, Peter Melchior, Joe Zuntz, Eduardo Balbinot, Ricardo L. C. Ogando, I. Sevilla-Noarbe, William G. Hartley, Mark Sullivan, Martin Makler, C. Sánchez, Martin Crocce, J. P. Dietrich, Ramon Miquel, Ramon Miquel, E. Buckley-Geer, Tommaso Giannantonio, P. Guarnieri, Christopher J. Miller, Daniel Gruen, Daniel Gruen, Scott Dodelson, Scott Dodelson   +156 more
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Dark energy: Staring into darkness [PDF]

Nature, 2016
The path to understanding dark energy begins with a single question: has it always been the same throughout the history of the Universe?
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Inhomogeneous dark energy [PDF]

Journal of Cosmology and Astroparticle Physics, 2016
11 ...
Ali H. Chamseddine, Ali H. Chamseddine, Viatcheslav Mukhanov   +2 more
openaire   +4 more sources

Scaling dark energy

Physical Review D, 2004
We investigate the possibility of a dark energy component that is scaling with epochs. A phenomenological model is introduced whose energy density depends on the redshift in such a way that a smooth transition among the three dominant phases of the universe evolution (radiation era, matter domination, asymptotic de Sitter state) is achieved. We use the
CAPOZZIELLO, SALVATORE, MELCHIORRI A., SCHIRONE A.   +2 more
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