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Conformal time dependent Painleve-Gullstrand spacetime

1 Pith paper cite this work. Polarity classification is still indexing.

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abstract

The properties of an anisotropic fluid outside a star or a black hole embedded in an expanding universe are investigated. One finds that, in Painleve-Gullstrand coordinates, the heat flux of the cosmological fluid vanishes, in spite of the nonzero value of a non-diagonal component of the stress tensor. The pressures and energy density of the fluid are regular at $r = 2m$, divergent at $r = 0$ and change sign at certain values of their arguments.

fields

gr-qc 1

years

2026 1

verdicts

UNVERDICTED 1

representative citing papers

Dynamical black holes in the inflationary epoch

gr-qc · 2026-03-04 · unverdicted · novelty 5.0

Only black holes with initial masses in a narrow range formed during inflation survive to the present day, reaching a maximum mass of approximately 1.043 times 10 to the minus 3 solar masses.

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  • Dynamical black holes in the inflationary epoch gr-qc · 2026-03-04 · unverdicted · none · ref 18 · internal anchor

    Only black holes with initial masses in a narrow range formed during inflation survive to the present day, reaching a maximum mass of approximately 1.043 times 10 to the minus 3 solar masses.