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Colliding stars

by thetexan
Tags: colliding, stars
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thetexan
#1
Nov4-12, 11:14 PM
P: 72
Are there any known examples of colliding stars? has the phenomena ever been observed?

tex
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Chronos
#2
Nov5-12, 12:14 AM
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Star collisions are extraordinarily rare [space is really big]. The most common of such events is called an inspiralling binary system, which takes a very long time to occur.
Vanadium 50
#3
Nov5-12, 01:01 AM
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You also have a phenomenon call "blue stragglers" in clusters.

Note that "collision" is really only a special case of "mass transfer", which we see all the time.

Drakkith
#4
Nov5-12, 01:39 AM
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Colliding stars

Quote Quote by Vanadium 50 View Post
You also have a phenomenon call "blue stragglers" in clusters.

Note that "collision" is really only a special case of "mass transfer", which we see all the time.
I like to call it "Head-On Mass Transfer". Remember to buckle up.
Brainiac2
#5
Nov10-12, 12:40 AM
P: 21
Globular cluster stars are more likely to mass-transfer that way.
LPV man
#6
Nov10-12, 01:17 AM
P: 3
Has anyone ever modeled a stellar collision between stars of reasonably close mass
stargazer3
#7
Nov11-12, 01:52 AM
P: 44
Gamma-ray bursts, a great high-energy flashes observed every day in the sky, are thought to be the pruducts of collision between two neutron stars. It is not a head-on collision (due to a very low probability of such an interaction), but it is a hot topic in astrophysics now.

Here's a great introductory video about it. Not very relevant to head-on stuff, but hey, we all love big explosions, right?

Edit: LVP_man, there are simulations in that link, and I'd guess the stars are of equal mass.
LPV man
#8
Nov11-12, 11:01 AM
P: 3
Quote Quote by stargazer3 View Post
Gamma-ray bursts, a great high-energy flashes observed every day in the sky, are thought to be the pruducts of collision between two neutron stars. It is not a head-on collision (due to a very low probability of such an interaction), but it is a hot topic in astrophysics now.

Here's a great introductory video about it. Not very relevant to head-on stuff, but hey, we all love big explosions, right?

Edit: LVP_man, there are simulations in that link, and I'd guess the stars are of equal mass.
That was a very interesting video, amazing it took six weeks of computing time to create the simulation of the merger event between two neutron stars
goldsax
#9
Nov16-12, 04:59 AM
P: 51
wow that was an amazing clip...
i presume the neutron stars would be revolving around each other at almost relativistic speeds..
what a thought.....


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