A new parametrization of dark energy equation of state leading to double exponential potential - INSPIRE

DataBETA

A new parametrization of dark energy equation of state leading to double exponential potential

May 18, 2018

10 pages

Published in:

Res.Astron.Astrophys. 18 (2018) 11, 131

Published: Oct 31, 2018

e-Print:

1805.07148 [gr-qc]

DOI:

10.1088/1674-4527/18/11/131

View in:

ADS Abstract Service

reference search16 citations

Citations per year

Abstract: (IOP)

We show that a phenomenological form of energy density for the scalar field can provide the required transition from decelerated (q > 0) to accelerated expansion (q < 0) phase of the universe. We have used the latest type Ia supernova (SNIa) and Hubble parameter datasets to constrain the model parameters. The best fit values obtained from those datasets are then applied to reconstruct ωϕ (z), the equation of state parameter for the scalar field. The results show that the reconstructed forms of q(z) and ωϕ (z) do not differ much from the standard ΛCDM value at the current epoch. Finally, the functional form of the relevant potential V(ϕ) is derived by a parametric reconstruction. The corresponding V(ϕ) comes out to be a double exponential potential, which has a number of cosmological implications. Additionally, we have also studied the effect of this particular scalar field dark energy sector on the evolution of matter overdensities.

Note:

10 pages, 13 figures, Accepted for publication in Research in Astronomy and Astrophysics

98.80.Hw
Quintessence field
Dark energy density
Perturbation

References(46)

Figures(13)

[1]

Lsst Science Book, version 2.0, Tech. rep. (LSST Science Collaboration)

Abell P.
,
Burke D.
,
Hamuy

[2]

Quintessence arising from exponential potentials

- Phys.Rev.D 61 (2000) 127301
•
e-Print:
- astro-ph/9910214
•
DOI:
- 10.1103/PhysRevD.61.127301

[3]

Perturbations in cosmologies with a scalar field and a perfect fluid

- Phys.Rev.D 70 (2004) 043532
•
e-Print:
- astro-ph/0311503
•
DOI:
- 10.1103/PhysRevD.70.043532

[4]

The WiggleZ Dark Energy Survey: Joint measurements of the expansion and growth history at z < 1

et al.

- Mon.Not.Roy.Astron.Soc. 425 (2012) 405-414
•
e-Print:
- 1204.3674
•
DOI:
- 10.1111/j.1365-2966.2012.21473.x

[5]

Accelerating universes with scaling dark matter

Michel Chevallier
(
- Tours U., CNRS
)
,
David Polarski
(
- Tours U., CNRS and
- Montpellier U.
)

- Int.J.Mod.Phys.D 10 (2001) 213-224
•
e-Print:
- gr-qc/0009008
•
DOI:
- 10.1142/S0218271801000822

[6]

Cosmological parameters from supernova observations: A Critical comparison of three data sets

T.Roy Choudhury
(
- SISSA, Trieste
)
,
T. Padmanabhan
(
- IUCAA, Pune
)

- Astron.Astrophys. 429 (2005) 807
•
e-Print:
- astro-ph/0311622
•
DOI:
- 10.1051/0004-6361:20041168

[7]

Modeling the Anisotropic Two-Point Galaxy Correlation Function on Small Scales and Improved Measurements of $H(z)$ , $D_A(z)$ , and $\beta(z)$ from the Sloan Digital Sky Survey DR7 Luminous Red Galaxies

Chia-Hsun Chuang
(
- Madrid, IFT
)
,
Yun Wang
(
- Oklahoma U.
)

- Mon.Not.Roy.Astron.Soc. 435 (2013) 255-262
•
e-Print:
- 1209.0210
•
DOI:
- 10.1093/mnras/stt1290

[8]

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

[9]

Kinematic Constraints to the Transition Redshift from SNe Ia Union Data

J.V. Cunha
(
- Sao Paulo U., IAG
)

- Phys.Rev.D 79 (2009) 047301
•
e-Print:
- 0811.2379
•
DOI:
- 10.1103/PhysRevD.79.047301

[10]

Baryon acoustic oscillations in the Lyα forest of BOSS DR11 quasars

BOSS

Collaboration

•

Timothée Delubac
(
- DAPNIA, Saclay and
- Ecole Polytechnique, Lausanne, LPAP
)

et al.

- Astron.Astrophys. 574 (2015) A59
•
e-Print:
- 1404.1801
•
DOI:
- 10.1051/0004-6361/201423969

[11]

The DESI Experiment Part I: Science,Targeting, and Survey Design

DESI

Collaboration

•

Amir Aghamousa
(
- KASI, DaeJeon
)

et al.

e-Print:
- 1611.00036

[12]

Is there evidence for dark energy evolution?

Xuheng Ding
(
- Beijing Normal U.
)
,
Marek Biesiada
(
- Beijing Normal U. and
- Silesia U.
)
,
Shuo Cao
(
- Beijing Normal U.
)
,
Zhengxiang Li
(
- Beijing Normal U.
)
,
Zong-Hong Zhu
(
- Beijing Normal U.
)

- Astrophys.J.Lett. 803 (2015) 2, L22
•
e-Print:
- 1503.04923
•
DOI:
- 10.1088/2041-8205/803/2/L22

[13]

Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies

SDSS

Collaboration

•

Daniel J. Eisenstein
(
- Arizona U.
)

et al.

- Astrophys.J. 633 (2005) 560-574
•
e-Print:
- astro-ph/0501171
•
DOI:
- 10.1086/466512

[14]

Probing a Steep EoS for Dark Energy with latest observations

- Astropart.Phys. 97 (2018) 130-135
•
e-Print:
- 1708.08529
•
DOI:
- 10.1016/j.astropartphys.2017.11.007

[15]

Evolution of perturbations in distinct classes of canonical scalar field models of dark energy

H.K. Jassal
(
- Harish-Chandra Res. Inst.
)

- Phys.Rev.D 81 (2010) 083513
•
e-Print:
- 0910.1906
•
DOI:
- 10.1103/PhysRevD.81.083513

[16]

Euclid Definition Study Report

EUCLID

Collaboration

•

R. Laureijs
(
- ESTEC, Noordwijk
)

et al.

e-Print:
- 1110.3193

[17]

Exploring the expansion history of the universe

Eric V. Linder
(
- LBL, Berkeley
)

- Phys.Rev.Lett. 90 (2003) 091301
•
e-Print:
- astro-ph/0208512
•
DOI:
- 10.1103/PhysRevLett.90.091301

[18]

Cosmic slowing down of acceleration for several dark energy parametrizations

- JCAP 10 (2014) 017
•
e-Print:
- 1407.1632
•
DOI:
- 10.1088/1475-7516/2014/10/017

[19]

Study of non-canonical scalar field model using various parametrizations of dark energy equation of state

Abdulla Al Mamon
(
- Visva Bharati U.
)
,
Sudipta Das
(
- Visva Bharati U.
)

- Eur.Phys.J.C 75 (2015) 6, 244
•
e-Print:
- 1503.06280
•
DOI:
- 10.1140/epjc/s10052-015-3467-9

[20]

A divergence free parametrization of deceleration parameter for scalar field dark energy

Abdulla Al Mamon
(
- Visva Bharati U.
)
,
Sudipta Das
(
- Visva Bharati U.
)

- Int.J.Mod.Phys.D 25 (2016) 03, 1650032
•
e-Print:
- 1507.00531
•
DOI:
- 10.1142/S0218271816500322

[21]

Quintessence: a mini-review

Jerome Martin

- Mod.Phys.Lett.A 23 (2008) 1252-1265
•
e-Print:
- 0803.4076
•
DOI:
- 10.1142/S0217732308027631

[22]

Improved constraints on the expansion rate of the Universe up to z~1.1 from the spectroscopic evolution of cosmic chronometers

et al.

- JCAP 08 (2012) 006
•
e-Print:
- 1201.3609
•
DOI:
- 10.1088/1475-7516/2012/08/006

[23]

Comparison of the legacy and gold snia dataset constraints on dark energy models

S. Nesseris
(
- Ioannina U.
)
,
Leandros Perivolaropoulos
(
- Ioannina U.
)

- Phys.Rev.D 72 (2005) 123519
•
e-Print:
- astro-ph/0511040
•
DOI:
- 10.1103/PhysRevD.72.123519

[24]

A theoretician's analysis of the supernova data and the limitations in determining the nature of dark energy

T. Padmanabhan
(
- IUCAA, Pune
)
,
T.Roy Choudhury
(
- IUCAA, Pune
)

- Mon.Not.Roy.Astron.Soc. 344 (2003) 823-834
•
e-Print:
- astro-ph/0212573
•
DOI:
- 10.1046/j.1365-8711.2003.06873.x

[25]

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

1-25 of 46
1
2
25 / page