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Results tagged with star
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user 34064
Questions regarding large spheres of plasma undergoing fusion.
3
votes
Accepted
Determine spectral type of star from its properties
The Yerkes or Morgan-Keenan (MK) system is based only on a set of standard stars and their spectra, and the type of any other given star (that is not one of those standards) is based only on where that …
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7
votes
Which stellar properties can we describe as "first principles" in which we can derive the rest?
That states that composition and mass are the two key properties, assuming that the star is in hydrostatic equilibrium and derives its energy from nuclear reactions. …
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7
votes
Accepted
Does Oxygen-burning process produce Neon?
The pages you’re looking at describe fusion of two similar nuclei with each other (e.g. oxygen with oxygen). But fusion doesn’t have to involve identical nuclei, and reactions involving more abundant …
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3
votes
Accepted
Is there a website out there where I can find/compare data on stellar parameters for the bri...
The Yale Bright Star Catalogue (searchable here) is a good source of basic data (photometry, spectral type, distance, multiplicity), but for derived quantities like mass or radius you would have to apply …
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1
vote
What is the spectral reflectance of starlight in a close binary?
This is a long-standing (and complicated!) problem in modeling eclipsing binary light curves. Here’s a full review from 1985 (with later citations here), which suggests (from a very quick skim) that a …
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3
votes
Accepted
Would studying massive stars that are experiencing time dilation due to proximity to a black...
So there would be strong tidal forces trying to pull the star apart. … So the star itself would probably be hard to observe separately. …
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3
votes
python question-discrepancy between number of stars found
When you apply the fractional distance uncertainty condition, you create a new array called final_filtered_data. But then in the next lines, you go back to using your array called masked_data, so you …
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3
votes
How to determine the age of a star using asteroseismology?
Because the star is pulsating slightly, its brightness changes slightly. … By analyzing the brightness timeseries (e.g. with Fourier techniques), it is possible to find the frequencies at which the star is pulsating. …
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