All Questions
Tagged with binary-stars astrophysics
34
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How close does a dwarf star have to be to remove the corona from its neighbour in an elliptic binary system?
It is possible for a larger (wider, but less massive) star to mutually orbit a heavy dwarf companion star in a binary system. If the dwarf star gets close enough it can attract the corona of the ...
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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 ...
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Could two rotating binary neutron stars create massive cosmic rays if their magnetic fields overlapped and acted on a volume of gas?
The so-called GZK cosmic rays sometimes have an energy equivalent to a baseball moving at 30 m/s.
The source of these rays has yet to be determined. Could 2 rotating neutron stars orbiting one ...
user379806
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Meaning of Left-Right Arrow in a Fitting Formula [duplicate]
I initially posted this question on Astronomy Stack Exchange but the site seemed rather inactive so I will try to ask it again on Physics, hopefully it doesn't go against any rules.
I was reading this ...
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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 ...
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As a binary system start producing gravitational waves even before merge should the stars start losing mass while still orbiting each other?
As a binary system start producing gravitational waves even before merge should the stars start losing mass while still orbiting each other? But is this really difficult to understand as just orbiting ...
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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 ...
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How likely is it that a typical pair of black holes will eventually merge?
Gravitational wave observatories have found many pairs of black holes merging. I understand that before they were working there were estimates of the rate at which they ought to be found.
To me it ...
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Relationships between G magnitude, Johnson V magnitude, and spectral type of stars?
I'm simulating a population of binary stars for a summer research project. I'm adding uncertainties to my simulated observables such as angular position and radial (line of sight) velocity. I'm using ...
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Why are wide binary systems assumed to contain negligible dark matter?
I'm doing a project that simulates wide binaries to do gravity tests, specifically a dark matter vs MOND test. I've come across similar papers, and their justification for using wide binaries for this ...
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Angular momentum orientation of the orbits of the two stars with respect to the Solar System
Happen to see this in Wiki...
The astronomer Karl Schwarzschild observed the motion of pairs of stars orbiting each other. He found that the two orbits of the stars of such a system lie in a plane, ...
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Specific gravitational wave polarisation direction for "edge-on" binary system
The gravitational wave signal from a binary system approaching merger consists of a mixture of the two $h_+$ and $h_\times$ orthogonal polarisation states.
If the binary is "face-on" (with ...
- 133k
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Original reference for Binary star system orbital seperation decay rate due to GW emission
Could someone please point me in the direction of who first derived the equation for the orbital separation decay rate of two point masses in a binary system due to the emission of gravitational waves:...
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Question about proportionally rules
I don't think context is needed but to make sure: I'm doing a homework exercise on binary system. P is the orbital period and E the energy of the system. The following is in the solution when trying ...
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In which direction would gravitational waves be emitted when two black holes colide?
Imagine two black holes on the x-axis coming together at the origin (not rotating around each other, just falling towards each other).
In which direction would the most intense gravitational waves be ...
user84158