X hits on this document

PDF document

Lecture 2 - The current state of fundamental physics - page 15 / 27

62 views

0 shares

0 downloads

0 comments

15 / 27

If the remnant left behind by the supernova is massive enough, it will be a black hole. (If not it will be a Neutron star)

More generally, if anything is compressed within its Schwarzschild radius, then a black hole will form.

RS = 2Gm/ c2 = (m/ msun ) ! 3km

The boundary of a black hole is called the event horizon. When something passes through the event horizon, it can no longer communicate in any way with the world outside. Surprisingly, if you fell into a large black hole, you wouldn’t know when you had passed through the event horizon.

David Kastor

COSMOS to HUMANITY, Spring 2008

The radius of the sun is actually about 700,000 km.

Lecture 2 , slide 15

Document info
Document views62
Page views62
Page last viewedThu Dec 08 08:16:38 UTC 2016
Pages27
Paragraphs214
Words2270

Comments