کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5496001 | 1529834 | 2017 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new relativistic stellar model with anisotropic fluid in Karmarkar space-time
ترجمه فارسی عنوان
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
چکیده انگلیسی
We are presenting a new class of well-behaved solutions in embedding class-I. We proceed our calculations by assuming a new type of grr metric potential and solved for the other metric gtt using Karmarkar condition. The necessary condition that any solutions of Einstein's field equations to be class-I is to satisfy Karmarkar condition and sufficient condition is to satisfy Pandey-Sharma condition i.e. R2323â 0. The solution also satisfies strong energy condition, null energy condition, dominant energy condition and weak energy condition. The obtained compactness parameter is within Buchdahl limit i.e. 2M/Râ¤8/9. The solution also satisfies the causality condition and can represent stable stellar fluid system as the adiabatic index Î>4/3 and the stability factor holds â1â¤vt2âvr2â¤0 good. Finally, we have tuned our solution for two compact stars PSR J1614-2230 and 4U1608-52 which are well-behaved in all respects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 377, February 2017, Pages 256-267
Journal: Annals of Physics - Volume 377, February 2017, Pages 256-267
نویسندگان
Ksh. Newton Singh, Neeraj Pant, O. Troconis,