This presentation describes little introduction about the Black holes and also explains some points about the Hawking radiation.

1. HAWKING RADIATION

2. Contents
• What is Hawking Radiation ?
• Introduction to Black Holes
• Properties of Black Holes
• Videos to explain Hawking Radiation
• Black Hole Evaporation

3. What is Hawking Radiation ?
• Hawking radiation is blackbody radiation that
is predicted to be released by black holes, due
to quantum effects near the event horizon
• named after the physicist Stephen Hawking
• Theoretical argument for its existence was
proposed in 1974

4. Black hole showing hawking radiation

5. Introduction to Black holes
• Region of space resulting from the collapse of
a star
• Region of space with strong gravitational field
that even light cannot escape it.

7. Properties of Black Holes… e.g.
Time dilation,
gravitational redshift,
“spaghettification”
“No hair theorem”
…. Hawking radiation…. Kerr black Holes….
red-shifted
red-shifted into
oblivion
From inside
this region
no information
can escape

8. Types of black holes
• Stellar : When a super massive star collapse
• Supermassive : likely exist in the centers of
most galaxies
• Miniature : mass much smaller than that of
our Sun (theoretical)

9. ….having FUN !

10. Hawking Radiation Detailed..

11. Videos Explaining Hawking Radiation
• Hawking radiation explained
• Short review of Hawking Radiation

12. 12
• The energy needed to create the real particles comes from
the gravitational field of the black hole.
• Hence, the emission of Hawking radiation reduces the
mass of the black hole. As the process continues, the black
hole will finally disappear. This is called black hole
evaporation.
• In fact, the time required for evaporation is given by
years
kg
M
tevap
3
12
10
10
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Black Hole Evaporation