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ISCOs and OSCOs in the presence of positive cosmological constant · Around

2019

ISCOs and OSCOs in the presence of positive cosmological constant

Boonserm, Petarpa, Ngampitipan, Tritos, Simpson, Alex et al.

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Normally one thinks of the observed cosmological constant as being so small that it can be utterly neglected on typical astrophysical scales, only affecting extremely large-scale cosmology at Gigaparsec scales.

Indeed, in those situations where the cosmological constant only has a quantitative influence on the physics, a separation of scales argument guarantees the effect is indeed negligible.
The exception to this argument arises when the presence of a cosmological constant qualitatively changes the physics.
One example of this phenomenon is the existence of outermost stable circular orbits (OSCOs) in the presence of a positive cosmological constant.

Built on

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Then

D. Pérez, G.E. Romero, and S.E. Perez Bergliaffa, “Accretion disks around black holes in modified strong gravity”, Astronomy & Astrophysics 551
Original
2013
Later among the works it cites.
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2013
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T. Sarkar, S. Ghosh and A. Bhadra, “Newtonian analogue of Schwarzschild de-Sitter spacetime: Influence on the local kinematics in galaxies”, Phys. Rev. D 90 # 6
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2015
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M. A. Abramowicz, “The Paczynski-Wiita potential: A step-by-step ‘derivation”’, Astron. Astrophys. 500

2009

Cited alongside, same era.

T. Igata, H. Ishihara and Y. Takamori, “Stable bound orbits around black rings”, Phys. Rev. D 82

2010

Cited alongside, same era.

Z. Stuchlik and J Schee, “Influence of the cosmological constant on the motion of Magellanic Clouds in the gravitational field of Milky Way”, JCAP 9

2011

Cited alongside, same era.

See for instance https://en.wikipedia.org/wiki/Puiseux_series

Cited in the paper.

C. Cattöen and M. Visser, “Generalized Puiseux series expansion for cosmological milestones”, doi: 10.1142/9789812834300_0323 [arXiv: gr-qc/0609073]

Cited in the paper.

M. Visser, “Acoustic propagation in fluids: An unexpected example of Lorentzian geometry”, gr-qc/9311028

Cited in the paper.

2016

Later among the works it cites.

A. Ashtekar, “Implications of a positive cosmological constant for general relativity”, Reports on Progress in Physics 80 #10

2017

Later among the works it cites.

E.Y. Bannikova, “The structure and stability of orbits in Hoag-like ring systems”, Monthly Notices of the Royal Astronomical Society 476 # 3

2018

Later among the works it cites.