Abstract
In the background of f(R,Lm)gravity,this work investigates three distinct dark matter halo profiles to test the possibility of generalised wormhole geometry within the galactic halo regions.The current study aims to accomplish these goals by examining various dark matter profiles including universal rotation curves(URC),Navarro-Frenk-White(NFW)model-Ⅰ,and NFW model-Ⅱ inside two distinct f(R,Lm)gravity models.According to the f(R,Lm)=R/2+Lαm model,the dark matter(DM)halo density profiles produce suitable shape functions that meet all the necessary requirements for exhibiting the wormhole geometries with appropriate choice of free parameters.In addition,to examine DM profiles under the f(R,Lm)=R/2+(1+λR)Lm model,we consider a specific shape function.Further,we observed that the derived solution from both two models violates the null energy constraints,confirming that the DM supports wormholes to maintain in the galactic halo.
基金项目
University Grant Commission(UGC),Govt.of India,New Delhi,for awarding JRF(191620024300)
University Grants Commission(UGC),New Delhi,India,for awarding National Fellowship for Scheduled Caste Students(201610123801)
National Board for Higher Mathematics(NBHM)under the Department of Atomic Energy(DAE),Govt.of India(02011/3/2022 NBHMR.P./R&DⅡ/2152 Dt.14.02.2022)
IUCAA,Pune,India through the visiting Associateship program()
NETL
NSTL
万方数据