Approximate perfect fluid solutions with quadrupole moment

نویسندگان

چکیده

We investigate the interior Einstein’s equations in case of a static, axially symmetric, perfect fluid source. present particular line element that is specially suitable for investigation this type gravitational fields. Assuming deviation from spherically symmetry small, we linearize corresponding and field find several classes vacuum solutions. some approximate solutions by imposing appropriate matching conditions.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Generating spherically symmetric static perfect fluid solutions

By a choice of new variables the pressure isotropy condition for spherically symmetric static perfect fluid spacetimes can be made a quadratic algebraic equation in one of the two functions appearing in it. Using the other variable as a generating function, the pressure and the density of the fluid can be expressed algebraically by the function and its derivatives. One of the functions in the m...

متن کامل

Non-Static Spherically Symmetric Perfect Fluid Solutions

We investigate solutions of Einstein field equations for the nonstatic spherically symmetric perfect fluid case using different equations of state. The properties of an exact spherically symmetric perfect fluid solutions are obtained which contain shear. We obtain three different solutions out of these one turns out to be an incoherent dust solution and the other two are stiff matter solutions.

متن کامل

Stationary and Axisymmetric Perfect-Fluid Solutions with Conformal Motion

Stationary and axisymmetric perfect-fluid metrics are studied under the assumption of the existence of a conformal Killing vector field and in the general case of differential rotation. The possible Lie algebras for the conformal group and corresponding canonical line-elements are explicitly given. It turns out that only four different cases appear, the abelian and other three called I, II and ...

متن کامل

Multidimensional Black Hole Solutions in Model with Perfect Fluid

A family of black-hole solutions in the model with 1-component perfect fluid is obtained. The metric of any solution contains (n − 1) Ricci-flat “internal space” metrics and for certain equations of state (pi = ±ρ) coincides with the metric of black brane (or black hole) solution in the model with antisymmetric form. Certain examples (e.g. imitating M2 and M5 black branes) are considered. The p...

متن کامل

Generating new perfect-fluid solutions from known ones: II

The properties of a transformation previously considered for generating new perfect-fluid solutions from known ones are further investigated. It is assumed that the four-velocity of the fluid is parallel to the stationary Killing field, and also that the norm and the twist potential of the stationary Killing field are functionally related. This case is complementary to the case studied in our p...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: International Journal of Modern Physics D

سال: 2021

ISSN: ['1793-6594', '0218-2718']

DOI: https://doi.org/10.1142/s0218271821500966