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相关论文: Hot Halos and Galactic Glasses

200 篇论文

Massive primordial halos exposed to moderate UV backgrounds are the potential birthplaces of supermassive black holes. In such a halo, an initially isothermal collapse will occur, leading to high accretion rates of…

星系天体物理 · 物理学 2015-04-14 M. A. Latif , D. R. G. Schleicher

The stability and other physical properties of a class of regular black holes, quasiblack holes, and other electrically charged compact objects are investigated in the present work. The compact objects are obtained by solving the…

广义相对论与量子宇宙学 · 物理学 2021-08-12 Angel D. D. Masa , Enesson S. de Oliveira , Vilson T. Zanchin

Advances in creating stable dipolar Bose systems, and ingenious box traps have generated tremendous interest. Theory study of dipolar bosons at finite temperature (T) has been limited. Motivated by these, we study 2D dipolar bosons at…

量子气体 · 物理学 2021-04-21 Pengtao Shen , Khandker F. Quader

We analyze the structural and thermodynamic properties of $D$-dimensional ($D \geq 4$), asymptotically flat or Anti-de-Sitter, electrically charged black hole solutions, resulting from the minimal coupling of general nonlinear…

广义相对论与量子宇宙学 · 物理学 2019-04-24 H. Benbellout , J. Diaz-Alonso , D. Rubiera-Garcia

We consider holographic superconductors whose bulk description consists of gravity minimally coupled to a Maxwell field and charged scalar field with general potential. We give an analytic argument that there is no "hard gap": the real part…

高能物理 - 理论 · 物理学 2009-11-18 Gary T. Horowitz , Matthew M. Roberts

We present a class of charged black hole solutions in an ($n+2)$-dimensional massive gravity with a negative cosmological constant, and study thermodynamics and phase structure of the black hole solutions both in grand canonical ensemble…

高能物理 - 理论 · 物理学 2015-01-27 Rong-Gen Cai , Ya-Peng Hu , Qi-Yuan Pan , Yun-Long Zhang

In this work, we construct an exact spherically symmetric black hole solution with a global monopole in the context of four-dimensional noncommutative Einstein-Gauss-Bonnet gravity. We modeled the spacetime noncommutativity via a…

广义相对论与量子宇宙学 · 物理学 2026-01-07 B. Hamil

The features of the fundamental thermodynamical relation (expressing entropy as function of state variables) that arise from the self-gravitating character of a system are analyzed. The models studied include not only a spherically…

广义相对论与量子宇宙学 · 物理学 2009-10-28 Erik A. Martinez

A population of discrete HI clouds in the halo of the inner Galaxy has been discovered in 21cm observations made with the Green Bank Telescope. The halo clouds are seen up to 1.5 kpc from the Galactic plane at many longitudes. Their…

天体物理学 · 物理学 2009-11-07 Felix J. Lockman

We consider the class of d=4 CFTs at finite temperature and chemical potential that are holographically described within D=5 Einstein-Maxwell theory with a Chern-Simons term. The high temperature phase, which is spatially homogeneous and…

高能物理 - 理论 · 物理学 2013-05-30 Aristomenis Donos , Jerome P. Gauntlett

Nonextreme black hole in a cavity can achieve the extreme state with a zero surface gravity at a finite temperature on a boundary, the proper distance between the boundary and the horizon being finite. The classical geometry in this state…

广义相对论与量子宇宙学 · 物理学 2014-11-17 O. B. Zaslavskii

We study the properties of anti--de Sitter black holes with a Gauss-Bonnet term for various horizon topologies (k=0, \pm 1) and for various dimensions, with emphasis on the less well understood k=-1 solution. We find that the zero…

高能物理 - 理论 · 物理学 2009-11-10 Ishwaree P. Neupane

Regarding the volume as independent thermodynamic variable we point out that black hole horizons can hide positive heat capacity and specific heat. Such horizons are mechanically marginal, but thermally stable. In the absence of a canonical…

广义相对论与量子宇宙学 · 物理学 2020-02-06 Tamás S. Biró , Viktor G. Czinner , Hideo Iguchi , Péter Ván

An attempt is made to describe the `thermodynamics' of semiclassical spacetime without specifying the detailed `molecular structure' of the quantum spacetime, using the known properties of blackholes. I give detailed arguments, essentially…

高能物理 - 理论 · 物理学 2014-11-18 T. Padmanabhan

This work explores the universal classification of thermodynamic topology for charged static black holes within the $z=3$ Ho\u{r}ava-Lifshitz gravity theory, considering both canonical and grand canonical ensembles. We introduce a new…

广义相对论与量子宇宙学 · 物理学 2025-12-09 Hao Chen , Meng-Yao Zhang , Hassan Hassanabadi , Qihong Huang , Zheng-Wen Long

In this article, we revisit the thermodynamics of Hayward black holes [1] in asymptotic flat spacetime and obtain the bounds on the final mass post merger after head-on collision event of two equal mass black holes. We revisit thermal…

广义相对论与量子宇宙学 · 物理学 2026-04-16 Neeraj Kumar , Ankur Srivastav , Phongpichit Channuie

We give a thorough description of the shape of rotating axisymmetric stable black-hole (apparent) horizons applicable in dynamical or stationary regimes. It is found that rotation manifests in the widening of their central regions…

广义相对论与量子宇宙学 · 物理学 2013-11-21 Martin Reiris , Maria Eugenia Gabach Clement

In this paper, we investigate thermodynamics and phase transitions of a 4-dimensional rotating Kaluza-Klein black hole solution in the presence of Maxwell electrodynamics. Calculating the conserved and thermodynamical quantities shows that…

广义相对论与量子宇宙学 · 物理学 2021-12-23 Seyed Hossein Hendi , Somayeh Hajkhalili , Mubasher Jamil , Mehrab Momennia

It is shown that in the extreme limit with a zero surface gravity but nonzero local temperature the limiting metric of a generic static black hole is determined by a metric induced on a horizon and one function of two coordinates,…

广义相对论与量子宇宙学 · 物理学 2014-11-17 O. B. Zaslavskii

Recently, a conjecture has been proposed, which indicates a correlation between super-entropy black holes and the thermodynamic instability \cite{Cong:2019bud}. W.Cong et al. suggested that the $C_{V}$ (specific heat capacity at constant…

广义相对论与量子宇宙学 · 物理学 2023-04-20 Yue Song , Benrong Mu