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Black-holes
New post in Black-holes
Do neutrinos of any flavor get trapped in black holes?
May 4th, 2020
neutrinos
particle-physics
black-holes
Blueshift near the Schwarzschild BH horizon
August 1st, 2022
event-horizon
black-holes
gravity
general-relativity
Entering a black hole, jumping into another universe---with questions
October 8th, 2020
general-relativity
black-holes
universe
wormholes
white-holes
Surface gravity of Kerr black hole
March 22nd, 2020
kerr-metric
event-horizon
black-holes
general-relativity
gravity
What happens to light and mass in the center of a black hole?
April 10th, 2020
gravity
black-holes
visible-light
singularities
How do we determine the mass of a black hole?
August 18th, 2020
gravity
binary-stars
mass
black-holes
Binary Black Hole Solution of General Relativity?
August 1st, 2022
computational-physics
analyticity
black-holes
general-relativity
binary-stars
Is the observable region of the universe within the event horizon of a super-massive black hole?
September 9th, 2020
cosmology
black-holes
universe
event-horizon
Using a naked black hole as a mirror?
November 27th, 2020
reflection
general-relativity
visible-light
black-holes
gravitational-lensing
How were the solar masses and distance of the GW150914 merger event calculated from the signal?
February 14th, 2020
general-relativity
black-holes
mass
gravitational-waves
ligo
How would you describe a black hole to a complete layman?
March 9th, 2020
black-holes
popular-science
Black Hole Photon Sphere
April 27th, 2020
black-holes
neutron-stars
At what rate does a rotating black hole lose mass via Hawking Radiation?
June 20th, 2020
black-holes
What happens if you dump antimatter into a black hole?
May 2nd, 2020
antimatter
black-holes
gravity
Why aren't all black holes the same "size"?
June 3rd, 2021
black-holes
mass
density
event-horizon
singularities
How many times can light revolve around a black hole?
March 11th, 2020
general-relativity
black-holes
differential-geometry
geometry
geometric-optics
How many of which particles are in Hawking radiation?
August 10th, 2022
quantum-mechanics
black-holes
astrophysics
hawking-radiation
Can He-4 atoms create black holes?
April 23rd, 2020
gravity
black-holes
bosons
Shouldn't some stars behave as black holes?
November 30th, 2020
black-holes
astrophysics
mass
event-horizon
stars
Can a massive object have an escape velocity close to $c$ and not become a black hole?
March 31st, 2020
gravity
escape-velocity
mass
black-holes
If you hover just above the event horizon of a black hole, would you see the future of the universe?
August 1st, 2022
time-travel
black-holes
astrophysics
time-dilation
event-horizon
Deriving Birkhoff's Theorem
August 16th, 2022
black-holes
homework-and-exercises
general-relativity
symmetry
metric-tensor
The final parsec "problem"
August 1st, 2022
general-relativity
black-holes
astrophysics
galaxies
gravitational-waves
Why does a singularity need to exist at the center of a black hole?
August 16th, 2022
black-holes
singularities
Will a giant ball of protons form a black hole?
August 18th, 2022
general-relativity
black-holes
charge
Double slit experiment near event horizon
August 1st, 2022
black-holes
quantum-mechanics
interference
double-slit-experiment
Questions re significance of 2016 and 2020 LIGO observations
August 1st, 2022
gravitational-waves
history
experimental-physics
black-holes
ligo
Why does angular momentum shorten the Schwarzschild Radius of a black hole?
June 29th, 2020
event-horizon
angular-momentum
black-holes
gravity
general-relativity
Black hole complementarity - absorption of Hawking radiation
August 9th, 2022
information
hawking-radiation
quantum-gravity
black-holes
general-relativity
Is a black hole a perfect black body?
April 24th, 2020
hawking-radiation
thermal-radiation
black-holes
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