Thermodynamics and phase transitions of galactic clustering in higher-order modified gravity

被引：16

作者：

Upadhyay, Sudhaker ^{[1
,2
]}

Pourhassan, Behnam ^{[3
]}

Capozziello, Salvatore ^{[4
,5
,6
,7
]}

机构：

[1] KLS Coll Nawada, Dept Phys, Nawada 805110, Bihar, India

[2] IU CAA, Pune 411007, Maharashtra, India

[3] Damghan Univ, Sch Phys, Damghan 3671641167, Iran

[4] Univ Napoli Federico II, Dipartimento Fis E Pancini, I-80126 Naples, Italy

[5] Ist Nazl Fis Nucl, Sez Napoli, Edificio G, I-80126 Naples, Italy

[6] Gran Sasso Sci Inst, Viale F Crispi 7, I-67100 Laquila, Italy

[7] Tomsk State Pedag Univ, Ul Kievskaya 60, Tomsk 634061, Russia

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2019年 / 28卷 / 01期

关键词：

Modified gravity; thermodynamics; large scale structure; distribution function; MODIFIED NEWTONIAN DYNAMICS; GALAXY ROTATION CURVES; DARK-MATTER; SPIRAL GALAXIES; HISTORY;

D O I：

10.1142/S0218271819500275

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the thermodynamics of galactic clustering under the higher-order corrected Newtonian dynamics. The clustering of galaxies is considered as a gravitational phase transition. In order to study the effects of higher-order correction to the thermodynamics of gravitational system, we compute more exact equations of state. Moreover, we investigate the corrected probability distribution function for such a gravitating system. A relation between order parameter and the critical temperature is also established.

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页数：18

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