|
FIZIKA B 18 (2009) 1, 35-42
 
LRS BIANCHI TYPE II STRING COSMOLOGICAL MODELS FOR PERFECT FLUID
DISTRIBUTION IN GENERAL RELATIVITY
ANIRUDH PRADHANa, HASSAN AMIRHASHCHIb and MAHESH KUMAR
YADAVc
aDepartment of Mathematics, Hindu Post-graduate College, Zamania-232 331, Ghazipur,India
E-mail addresses: pradhan@iucaa.ernet.in,
acpradhan@yahoo.com
bDepartment of Physics, Mahshahr Islamic Azad University, Mahshahr, Iran
E-mail address: hashchi@yahoo.com
cDepartment of Mathematics, Sobhasaria Engineering College, N H-11, Sikar-332 001, India
E-mail address: yadav1976mk@gmail.com
Received 6 March 2008; Revised manuscript received 9 March 2009
Accepted 6 May 2009 Online 21 May 2009
The present study deals with locally rotationally symmetric (LRS) Bianchi
type II string cosmological models with perfect fluid distribution of matter. We
consider two cases: (i)
r+ l = 0 and (ii)
r- l = 0 , where
r and l are the rest energy density and the
tension density of the string cloud, respectively. The physical properties of
the models is discussed.
PACS numbers: 98.80.Cq, 04.20.-q
UDC 524.83
Keywords: cosmic string, LRS Bianchi type II models, Nambu string
|
