Journal ArticleDOI
Dynamical analysis of interacting running vacuum models in DGP braneworld
TLDR
In this paper, the dynamical properties of varying vacuum cosmology by considering the interaction between the cosmological fluids are discussed and various functional forms (linear and non-linear) of interaction term and apply dynamical system approach.About:
This article is published in Physics of the Dark Universe.The article was published on 2021-12-01. It has received 4 citations till now. The article focuses on the topics: Inflation (cosmology) & Vacuum energy.read more
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Posted Content
Starobinsky-like inflation and running vacuum in the context of Supergravity
TL;DR: In this paper, the primeval inflationary phase of the early universe was described within a quantum field theoretical framework that can be viewed as the effective action of vacuum decay in the early times.
Phase space analysis of the accelerating multifluid Universe
TL;DR: In this paper, the phase space of a Friedmann-Robertson-Walker universe with various cosmological fluids that may or may not interact is studied, and the physical significance of the resulting fixed points is analyzed.
Journal ArticleDOI
Analyzing stability of five-dimensional Einstein Chern–Simons gravity through dynamical systems
Abdul Jawad,Abdul Malik Sultan +1 more
TL;DR: In this paper , the cosmological solutions of various models in the realm of five-dimensional Einstein Chern-Simons cosmology were investigated in the context of the late-time accelerated universe.
References
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Journal ArticleDOI
New Hubble Space Telescope Discoveries of Type Ia Supernovae at z ≥ 1: Narrowing Constraints on the Early Behavior of Dark Energy*
Adam G. Riess,Adam G. Riess,Louis-Gregory Strolger,Stefano Casertano,Henry C. Ferguson,Bahram Mobasher,B. Gold,Peter Challis,Alexei V. Filippenko,Saurabh Jha,Weidong Li,John L. Tonry,Ryan J. Foley,Robert P. Kirshner,Mark Dickinson,Emily MacDonald,Daniel J. Eisenstein,Mario Livio,Josh Younger,Chun Xu,Tomas Dahlen,Daniel Stern +21 more
TL;DR: In this article, the authors used the HST data to trace the history of cosmic expansion over the last 10 billion years, and found 21 new Type Ia supernovae (SNe Ia) with the Hubble Space Telescope (HST).
Journal ArticleDOI
The Hubble Space Telescope Cluster Supernova Survey. V. Improving the Dark-energy Constraints above z > 1 and Building an Early-type-hosted Supernova Sample
Nao Suzuki,Nao Suzuki,David Rubin,David Rubin,C. Lidman,Greg Aldering,Rahman Amanullah,K. Barbary,K. Barbary,L. F. Barrientos,János Botyánszki,Mark Brodwin,Natalia Connolly,Kyle S. Dawson,Arjun Dey,Mamoru Doi,Megan Donahue,Susana E. Deustua,Peter Eisenhardt,Erica Ellingson,L. Faccioli,L. Faccioli,Vitaliy Fadeyev,H. K. Fakhouri,H. K. Fakhouri,A. S. Fruchter,David Gilbank,Michael D. Gladders,Gerson Goldhaber,Gerson Goldhaber,Anthony H. Gonzalez,Ariel Goobar,Alexander Gude,Alexander Gude,Takashi Hattori,Henk Hoekstra,Eric Hsiao,Eric Hsiao,X. Huang,X. Huang,Yutaka Ihara,Myungkook J. Jee,David Johnston,David Johnston,Nobunari Kashikawa,Benjamin P. Koester,Kohki Konishi,M. Kowalski,Eric V. Linder,Eric V. Linder,Lori M. Lubin,Jason Melbourne,J. Meyers,J. Meyers,Tomoki Morokuma,Tomoki Morokuma,F. Munshi,F. Munshi,Christopher R. Mullis,Takeshi Oda,Nino Panagia,Saul Perlmutter,Saul Perlmutter,Marc Postman,T. A. Pritchard,T. A. Pritchard,Jason Rhodes,P. Ripoche,P. Ripoche,Piero Rosati,David J. Schlegel,A. L. Spadafora,S. A. Stanford,S. A. Stanford,Vallery Stanishev,Vallery Stanishev,Daniel Stern,M. Strovink,M. Strovink,Naohiro Takanashi,Kouichi Tokita,M. Wagner,Lifan Wang,Naoki Yasuda,H. K. C. Yee +84 more
TL;DR: In this article, Advanced Camera for Surveys, NICMOS and Keck adaptive-optics-assisted photometry of 20 Type Ia supernovae (SNe Ia) from the Hubble Space Telescope (HST) Cluster Supernova Survey was presented.
Journal ArticleDOI
Coupled Quintessence
TL;DR: The cosmological consequences of such a coupled quintessence (CQ) model, assuming an exponential potential and a linear coupling, were investigated in this article, where the authors evaluated the density perturbations on the cosmic microwave background and on the galaxy distribution at the present and derived bounds on the coupling constant.
Journal ArticleDOI
Exponential potentials and cosmological scaling solutions
TL;DR: In this paper, a phase-plane analysis of cosmologies containing a baryotropic fluid and a scalar field with an exponential potential was presented, and it was shown that the scaling solutions are unique late-time attractors whenever they exist.
Journal ArticleDOI
Properties of singularities in the (phantom) dark energy universe
TL;DR: In this paper, the properties of future singularities are investigated in the universe dominated by dark energy including the phantom-type fluid. And the authors classify the finite-time singularities into four classes and explicitly present the models which give rise to these singularities by assuming the form of the equation of state of dark energy.
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