All Questions
Tagged with binary-stars stars
14
questions
4
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85
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Hills Mechanism
The Hills mechanism postulates that when a stellar binary system is perturbed by a supermassive black hole (SMBH), the tidal forces at play result in the capture of one star while simultaneously ...
- 1,213
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3
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90
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How line of sight is determined?
How do they calculate the line of sight of a galaxy or binary star system from an observer's point of view. the velocity of a star in a binary star system depends on the line of sight so how do they ...
1
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2
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139
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Star with quadrupole in binary system violates Newton's 3th law?
Suppose that, in a binary system of two stars, the star A (and only the star A) has a non-zero quadrupole moment $Q_A$. Then, the star B feels the usual gravity force plus an additional force, ...
- 169
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Are there any binary red supergiants?
I wonder if we ever have identified or observed a pair of binary stars (red supergiants).
And I also wonder what would happen if they exploded, (theoretically) as we havent observed it. Also, would ...
- 111
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2
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How do astronomers calculate the mass of celestial bodies light year from Earth?
I have read in many scientific stuff that mass of this planet or that stars is about '$n$' times the mass of Sun.
I have gone through many websites and videos on YouTube but didn't find the right ...
0
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1
answer
72
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Definition of eclipsing binaries?
In the second minimum (the 3rd step) there is a smaller decrease in light intensity. For this to happen, wouldn't you need to be looking at the plane of orbit from above rather than directly along the ...
- 799
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25
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Existence and evolution of P-type "asymmetrical binaries"
I'm not sure how those are called so let me explain what I mean by "P-type asymmetrical binaries" - I'm thinking of two stars of very different masses (originally) that orbit each-other fairly closely....
- 31
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1
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124
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When a star undergo collapse in a binary system what effect it has on its companion star? [closed]
when a star in its lifetime fuses up all its hydrogen and then collapse under gravitational force, till the temperature inside become high enough to restart the fusion of helium and radiation pressure ...
- 165
1
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1
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62
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Are all binary stars also variable stars?
Since variable stars are the once whose luminosity change according to our perception and all binary stars must go through eclipsing, Can we say that all binary stars are also variable stars?
- 21
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2
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225
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Binary Stars In the Universe
Almost 80% of stars seen in the universe are Binary stars.What makes them so abundant in the universe? Why isn't there other numbers but exactly two that is abundant?
- 167
3
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1
answer
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Classification of binary star system
I'm not an astrophysicist, but I'm studying a binary star system and I need some clarification about star classification.
The spectrum seems to be F8V-like. The absolute magnitude is between 12 and ...
- 1,133
26
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3
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4k
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What is the smallest distance possible between two stars?
If two stars of any type were to form near each other, how closely can they form before something prevents them from being two distinct stars?
- 6,015
9
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4
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Binary Star system with one star stationary?
Can a Binary Star system be possible where in one star is stationary and the other star revolves around it? (Just like a planet revolving a star. i.e planets in the system and the star revolving ...
- 265
7
votes
3
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Binary stars' apparent magnitude
If you plot the apparent magnitude of a binary system (so you are unable to see 2 distinct stars) against time, it gives a repeating 'M' effect.
(from http://accessscience.com/)
Assuming one star is ...
- 6,927