Questions tagged [high-energy-astrophysics]
Questions touching the field of elementary particle physics, which require high energies to be studied. Use this tag if you are asking about quarks, gluons, mesons, hadrons, leptons, etc.
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When analyzing a particle moving at Kepler speed, √(GM/R) in a planetary magnetic field, do we need to convert it to angular speed, √(GM/R^3)?
A charged particle is moving in a planetary magnetic field, in a spherical polar coordinates which is corotating with the magnetic field. To solve the equations of motion numerically what would be the ...
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What exactly IS a "Domain Wall"?
A Domain Wall is an "topological defect" and a 2-dimensional singularity. They are widely theorized to exist throughout the universe, but none have been detected yet. I'm having trouble ...
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what does it mean to have momentum suppressed cross section
What does it mean to have momentum suppressed cross section and zero momentum transference in direct and indirect detection of dark matter
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Do all the accretion disks around a compact object (black hole or neutron star) emit astrophysical jet outflow?
Do all the accretion disks around a compact object (black hole or neutron star) emit astrophysical jet outflow? I mean is it mandatory for a jet to be emitted from an accretion disk?
If so, then why?
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What does it mean for something to be optically thick to pair production?
I have seen several references in the high energy astrophysics literature (including the example below) which make reference to an astronomical source being "thick to pair production".
What ...
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Do the newly-created deuterons in our Sun release any photons? In addition to a positron and an electron neutrino?
Perhaps this is a nuclear physics question, but....
When two colliding protons deep inside our Sun finally turn into a deuterium nucleus or deutron (after approximately ten octillion chances, on ...
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Find Periodicity in Lightcurve Using Lombscargle Periodogram(Astropy)
How to find the Nyquist factor for unevenly sampled data like here.https://github.com/jakevdp/PracticalLombScargle/blob/master/figures/LINEAR_Example.ipynb ? I have time binned for 5 mins. I mean for ...
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What's the percentage of strange matter inside a star at any time?
Is there any amount of strange matter (or "top matter"?) inside stars?
By strange matter I mean matter made out of flavours of quark other than up/down.
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What is the sun's maximum influence on a magnetic object?
How much magnetic repulsion could the sun's magnetic field produce on an magnetic object? Consider the object is ideal: It could be flat, to create more resistance, balanced, to stay on the opposing ...
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What consequences does a positive muon anomalous magnetic moment have for astronomy?
On April 7th, 2021, the muon $(g-2)$ collaboration published Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm, a result which made it to standard news, partly under headlines ...
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How can astronomers pinpoint the location of the source of a neutrino?
In the popular press, in recent months, we have heard a lot about high-energy neutrinos from far outside our solar system reaching our detectors....
But I wonder...
If a single neutrino from a great ...
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How spaghettification is possible at the Event Horizon of a supermassive black hole?
if gravity is too strong then it will break a object apart as gravity is strong enough to break the chemical composition of object why we consider "Spaghettification" relevant in this case ?
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Comparing Star Formation rate in different galaxies
I was looking for some scale to compare my result of star formation rate in order to find out whether it is moderate or high or low, but I couldn't find any scale. Is there any paper related to such ...
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Where can I look up assigned origins of gamma ray bursts events? (GRBs)
Gamma ray burst GRB170817A is believed to have originated from the merger of Neutron Star(NS)-Neutron Star(NS). From this article on the associated gravitational wave detection GW170817:
The ...
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What powered the Big Bang?
According to the first law of thermodynamics, law of conservation of energy states,
The total energy of an isolated system is constant; energy can be transformed from one form to another, but can be ...
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