Black hole - Open Access .click

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Some of the next articles are maybe not open access.

2009
Abstract A black hole is an object that is inside its event horizon at r=r*: a one-way surface that particles and light can only traverse inward. This chapter studies the spherically symmetric nonrotating Schwarzschild black hole. The metric elements change their respective signs when crossing from r>r∗ to r<r*, leading to ...
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When is a black hole not a black hole?

New Scientist, 2019
When it's an astrophysical black hole, of course.
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Are black holes black?

Soviet Physics Journal, 1989
This work presents a resolution of the causality paradox formulated by T. D. Lee in the theory of the Unruh effect and in the theory of black holes. The basis of the resolution is to take into account the transformation of a pure state into a mixed state in a measurement, which leads to a corresponding modification of the Bogolyubov transformations, so
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Calculating black hole shadows: Review of analytical studies

Physics Reports, 2022
Oleg Tsupko, Volker Perlick
exaly

Coalescence of black hole–neutron star binaries

Living Reviews in Relativity, 2021
Keisuke Taniguchi, Masaru Shibata, Koutarou Kyutoku +2 more
exaly

The Physics of Black Holes: Black Holes.

Science, 1986
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An Echo of Black Holes