About RED GIANT

For Astronomy lovers who would love to discuss about celestial objects.
Dipan
Posts: 158
Joined: Wed Dec 08, 2010 5:36 pm

About RED GIANT

Unread post by Dipan » Sun May 22, 2011 1:04 pm

Why the outer layer of red giants expands when the core shrinks????

tanvirab
Posts: 446
Joined: Tue Dec 07, 2010 2:08 am
Location: Pasadena, California, U.S.A.

Re: About RED GIANT

Unread post by tanvirab » Mon May 23, 2011 1:43 am

Core shrinks due to gravitation; outer layer expands due to radiation pressure.

User avatar
leonardo shawon
Posts: 169
Joined: Sat Jan 01, 2011 4:59 pm
Location: Dhaka

Re: About RED GIANT

Unread post by leonardo shawon » Tue Jul 19, 2011 12:32 am

amm,,, ai stage ar por ja 3ta stage ase oi 3ta stage kivabe ber korse?
Ibtehaz Shawon
BRAC University.

long way to go .....

tanvirab
Posts: 446
Joined: Tue Dec 07, 2010 2:08 am
Location: Pasadena, California, U.S.A.

Re: About RED GIANT

Unread post by tanvirab » Tue Jul 19, 2011 3:44 am

what happens in the third stage?

User avatar
samiul_samin
Posts: 1004
Joined: Sat Dec 09, 2017 1:32 pm

Re: About RED GIANT

Unread post by samiul_samin » Mon Feb 04, 2019 1:18 pm

leonardo shawon wrote:
Tue Jul 19, 2011 12:32 am
amm,,, ai stage ar por ja 3ta stage ase oi 3ta stage kivabe ber korse?
Actually Scientists watched those stages for many stars.We are watching ghost of the star at the night sky which are in those stages now.

Post Reply