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Accelerated cosmological models in modified gravity tested by distant supernovae snia data

Feb, 2006

19 pages

Published in:

Phys.Rev.D 74 (2006) 043502

e-Print:

astro-ph/0602526 [astro-ph]

DOI:

10.1103/PhysRevD.74.043502

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Abstract: (arXiv)

Recent supernovae of type Ia measurements and other astronomical observations suggest that our universe is in accelerating phase of evolution at the present epoch. While a dark energy of unknown form is usually proposed as the most feasible mechanism for the acceleration, there are appears some alternative conception that some effects arising from generalization of Einstein equation can mimic dark energy through a modified Friedmann equation. In this work we investigate some observational constraints on modified Friedmann equation obtained from generalized Lagrangian

{\cal L} \propto R^n

in minimal coupling with matter in Palatini formalism. We mainly concentrate on the constraints of model parameters from distant supernovae but other constraint from baryon oscillation prior is also considered. We obtain the confidence levels on two additional model parameter (

n

,

\Omega_{m,0}

). We conclude that the FRW model of First-Order Non-linear gravity survives several observational test like SNIa observation and baryon oscillation peaks. We find preferred value of

\Omega_{m,0} \simeq 0.3

from combined analysis of supernovae data and baryon oscillation peak. For deeper statistical analysis we apply Akaike and Bayesian information criteria of model selection for comparison prediction of the model with prediction of concordance

\Lambda

CDM model.

Note:

Accepted in PRD Journal-ref: Phys. Rev. D 74 043502 (2006)

04.20.-q
98.80.Jk
expansion: acceleration
gravitation: nonlinear
supernova
Friedman model
space-time: Robertson-Walker
coupling: minimal
baryon: oscillation
statistical analysis

References(47)

Figures(0)

Observational evidence from supernovae for an accelerating universe and a cosmological constant

et al.

- Astron.J. 116 (1998) 1009-1038
•
e-Print:
- astro-ph/9805201
•
DOI:
- 10.1086/300499

Measurements of $\Omega$ and $\Lambda$ from 42 High Redshift Supernovae

Supernova Cosmology Project

Collaboration

•

S. Perlmutter
(
- UC, Berkeley, CfPA
)

et al.

- Astrophys.J. 517 (1999) 565-586
•
e-Print:
- astro-ph/9812133
•
DOI:
- 10.1086/307221

The Cosmological Constant Problem

Steven Weinberg
(
- Texas U.
)

- Rev.Mod.Phys. 61 (1989) 1-23,
•
DOI:
- 10.1103/RevModPhys.61.1

The Cosmological constant

- Ann.Rev.Astron.Astrophys. 30 (1992) 499-542
•
DOI:
- 10.1146/annurev.aa.30.090192.002435

Consequences on variable Lambda models from distant type Ia supernovae and compact radio sources

R.G. Vishwakarma
(
- IUCAA, Pune
)

- Class.Quant.Grav. 18 (2001) 1159-1172
•
e-Print:
- astro-ph/0012492
•
DOI:
- 10.1088/0264-9381/18/7/301

Cosmological Consequences of a Rolling Homogeneous Scalar Field

Bharat Ratra
(
- Princeton U.
)
,
P.J.E. Peebles
(
- Princeton U.
)

- Phys.Rev.D 37 (1988) 3406
•
DOI:
- 10.1103/PhysRevD.37.3406

A Phantom menace?

R.R. Caldwell
(
- Princeton U.
)

- Phys.Lett.B 545 (2002) 23-29
•
e-Print:
- astro-ph/9908168
•
DOI:
- 10.1016/S0370-2693(02)02589-3

Phantom cosmologies

- Phys.Rev.D 68 (2003) 103519
•
e-Print:
- hep-th/0307128
•
DOI:
- 10.1103/PhysRevD.68.103519

An Alternative to quintessence

Alexander Yu. Kamenshchik
(
- Landau Inst. and
- Landau Network Centro Volta
)
,
Ugo Moschella
(
- Insubria U., Como and
- INFN, Milan
)
,
Vincent Pasquier
(
- Saclay
)

- Phys.Lett.B 511 (2001) 265-268
•
e-Print:
- gr-qc/0103004
•
DOI:
- 10.1016/S0370-2693(01)00571-8

Cardassian expansion: A Model in which the universe is flat, matter dominated, and accelerating

Katherine Freese
(
- Michigan U.
)
,
Matthew Lewis
(
- Michigan U.
)

- Phys.Lett.B 540 (2002) 1-8
•
e-Print:
- astro-ph/0201229
•
DOI:
- 10.1016/S0370-2693(02)02122-6

Introduction to modified gravity and gravitational alternative for dark energy

- eConf C0602061 (2006) 06,
- Int.J.Geom.Meth.Mod.Phys. 4 (2007) 115-146
•
e-Print:
- hep-th/0601213
•
DOI:
- 10.1142/S0219887807001928

Dynamics of dark energy

Edmund J. Copeland
(
- Nottingham U.
)
,
M. Sami
(
- Jamia Millia Islamia
)
,
Shinji Tsujikawa
(
- Gunma Coll. Tech.
)

- Int.J.Mod.Phys.D 15 (2006) 1753-1936
•
e-Print:
- hep-th/0603057
•
DOI:
- 10.1142/S021827180600942X

Curvature quintessence

Salvatore Capozziello
(
- INFN, Naples and
- Salerno U.
)

- Int.J.Mod.Phys.D 11 (2002) 483-492
•
e-Print:
- gr-qc/0201033
•
DOI:
- 10.1142/S0218271802002025

The Cosmology of generalized modified gravity models

Sean M. Carroll
(
- Chicago U., EFI and
- Chicago U., KICP
)
,
Antonio De Felice
(
- Syracuse U.
)
,
Vikram Duvvuri
(
- Chicago U., EFI and
- Chicago U., KICP
)
,
Damien A. Easson
(
- Syracuse U.
)
,
Mark Trodden
(
- Syracuse U.
)

et al.

- Phys.Rev.D 71 (2005) 063513
•
e-Print:
- astro-ph/0410031
•
DOI:
- 10.1103/PhysRevD.71.063513

Accelerated cosmological models in first order nonlinear gravity

Gianluca Allemandi
(
- Turin U., Math Dept.
)
,
Andrzej Borowiec
(
- Wroclaw U.
)
,
Mauro Francaviglia
(
- Turin U., Math Dept.
)

- Phys.Rev.D 70 (2004) 043524
•
e-Print:
- hep-th/0403264
•
DOI:
- 10.1103/PhysRevD.70.043524

Accelerated cosmological models in Ricci squared gravity

Gianluca Allemandi
(
- Turin U., Math Dept.
)
,
Andrzej Borowiec
(
- Wroclaw U.
)
,
Mauro Francaviglia
(
- Turin U., Math Dept.
)

- Phys.Rev.D 70 (2004) 103503
•
e-Print:
- hep-th/0407090
•
DOI:
- 10.1103/PhysRevD.70.103503

Dark energy dominance and cosmic acceleration in first order formalism

Gianluca Allemandi
(
- Turin U.
)
,
Andrzej Borowiec
(
- Wroclaw U.
)
,
Mauro Francaviglia
(
- Turin U.
)
,
Sergei D. Odintsov
(
- ICREA, Barcelona and
- Barcelona, IEEC and
- CSIC, Catalunya and
- Barcelona, IFAE
)

- Phys.Rev.D 72 (2005) 063505
•
e-Print:
- gr-qc/0504057
•
DOI:
- 10.1103/PhysRevD.72.063505

f(R) Theories of gravity in Palatini approach matched with observations

S. Capozziello
(
- Salerno U. and
- INFN, Salerno
)
,
Vincenzo F. Cardone
(
- Salerno U. and
- INFN, Salerno
)
,
M. Francaviglia
(
- Turin U., Math Dept.
)

- Gen.Rel.Grav. 38 (2006) 711-734
•
e-Print:
- astro-ph/0410135
•
DOI:
- 10.1007/s10714-006-0261-x

Cosmological constraints on f(r) gravity theories within the palatini approach

Morad Amarzguioui
(
- Inst. Theor. Astrophys., Oslo
)
,
O. Elgaroy
(
- Inst. Theor. Astrophys., Oslo and
- Nordita
)
,
D.F. Mota
(
- Inst. Theor. Astrophys., Oslo
)
,
T. Multamaki
(
- Nordita and
- Turku U.
)

- Astron.Astrophys. 454 (2006) 707-714
•
e-Print:
- astro-ph/0510519
•
DOI:
- 10.1051/0004-6361:20064994

Dark energy anisotropic stress and large scale structure formation

- Phys.Rev.D 73 (2006) 083502
•
e-Print:
- astro-ph/0512135
•
DOI:
- 10.1103/PhysRevD.73.083502

The matter power spectrum in f(r) gravity

Tomi Koivisto
(
- Helsinki Inst. of Phys.
)

- Phys.Rev.D 73 (2006) 083517
•
e-Print:
- astro-ph/0602031
•
DOI:
- 10.1103/PhysRevD.73.083517

Constraining f(R) gravity in the Palatini formalism

Thomas P. Sotiriou
(
- SISSA, Trieste and
- INFN, Trieste
)

- Class.Quant.Grav. 23 (2006) 1253-1267
•
e-Print:
- gr-qc/0512017
•
DOI:
- 10.1088/0264-9381/23/4/012

Type Ia supernova discoveries at z > 1 from the Hubble Space Telescope: Evidence for past deceleration and constraints on dark energy evolution

et al.

- Astrophys.J. 607 (2004) 665-687
•
e-Print:
- astro-ph/0402512
•
DOI:
- 10.1086/383612

The Supernova Legacy Survey: Measurement of $\Omega_M$ , $\Omega_\Lambda$ and ${\cal w}$ from the first year data set

SNLS

Collaboration

•

P. Astier
(
- Paris U., VI-VII
)

et al.

- Astron.Astrophys. 447 (2006) 31-48
•
e-Print:
- astro-ph/0510447
•
DOI:
- 10.1051/0004-6361:20054185

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