Bianchi-V cosmological models with viscous fluid and constant deceleration parameter in general relativity

Sharad KANDALKAR; Pramod KHADE and Mohini GAIKWAD

Makale detayları

Bianchi-V cosmological models with viscous fluid and constant deceleration parameter in general relativity

Yazarlar:

Sharad KANDALKAR | Pramod KHADE and Mohini GAIKWAD

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2012 Vol.36 Issue 1, pp.141-154

Belge Tipi:

Makale

Yayın Tarihi:

12/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000760509

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Anahtar kelimeler:

Özet:

 

In this paper we discuss the variation law for Hubble's  parameter, average scale factor in spatially homogenous anisotropic  Bianchi Type V space-time that yields a constant value deceleration  parameter.  Using the law of variation for Hubble's parameter, exact  solutions of Einstein's field equations are obtained for Bianchi-V  space time filled with viscous fluid in two different cases where the  universe exhibits power law and exponential expansion.  We investigate  a number of solutions with constant and time varying cosmological  constant together with variable and constant bulk viscosity.  We find  that the constant value of deceleration parameter is reasonable for  the present day universe and gives an appropriate discussion of  evolution of universe with the recent observations of type Ia  supernovae.  The detailed study of physical and kinematical properties  of the model is also discussed.

 

In this paper we discuss the variation law for Hubble's  parameter, average scale factor in spatially homogenous anisotropic  Bianchi Type V space-time that yields a constant value deceleration  parameter.  Using the law of variation for Hubble's parameter, exact  solutions of Einstein's field equations are obtained for Bianchi-V  space time filled with viscous fluid in two different cases where the  universe exhibits power law and exponential expansion.  We investigate  a number of solutions with constant and time varying cosmological  constant together with variable and constant bulk viscosity.  We find  that the constant value of deceleration parameter is reasonable for  the present day universe and gives an appropriate discussion of  evolution of universe with the recent observations of type Ia  supernovae.  The detailed study of physical and kinematical properties  of the model is also discussed.

Makale detayları

Bianchi-V cosmological models with viscous fluid and constant deceleration parameter in general relativity

Yazarlar:

Sharad KANDALKAR | Pramod KHADE and Mohini GAIKWAD

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2012 Vol.36 Issue 1, pp.141-154

Belge Tipi:

Makale

Yayın Tarihi:

12/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000760509

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Hubble's parameter (HP)

deceleration parameter (DP)

anisotropy parameter (AP)

cosmology

Sayı

Makale detayları

Bianchi-V cosmological models with viscous fluid and constant deceleration parameter in general relativity

Yazarlar: Sharad KANDALKAR | Pramod KHADE and Mohini GAIKWAD

Yayıncı: TUBITAK

Dergi: Turkish Journal of Physics 2012 Vol.36 Issue 1, pp.141-154

Belge Tipi: Makale

Yayın Tarihi: 12/2011

Belge Dili: Türkçe

Document ID (Org No.): 2000760509

Sıklık: İki Aylık

eISSN: 1303-6122

pISSN: 1300-0101

Hubble's parameter (HP)

deceleration parameter (DP)

anisotropy parameter (AP)

cosmology

Sayı

Yazarlar:

Sharad KANDALKAR | Pramod KHADE and Mohini GAIKWAD

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2012 Vol.36 Issue 1, pp.141-154

Belge Tipi:

Makale

Yayın Tarihi:

12/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000760509

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101