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Results tagged with binary-star
Search options questions only
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user 271
Questions regarding a pair of stars that are gravitationally bound and orbit around their barycenter.
4
votes
1
answer
68
views
Does binarity play a role in spectral fitting?
Most of the spectroscopic surveys like SDSS classify stars into one pure spectral type.
However, a large fraction of stars are in binaries.
Can we know whether a spectral fitting is good enough? Is …
- 3,157
1
vote
1
answer
198
views
Can close binaries have a very eccentric orbit?
For example, are there binaries with an orbital period < 5 day and that are very eccentric?
What kind of factors could slow down orbital circularisation?
Are there examples of binaries with p<5day …
- 3,157
8
votes
1
answer
515
views
How can we tell that a short-period binary is tidally locked?
Observationally, how can this be established?
What is known theoretically about the process?
Are there any reference papers to read?
- 3,157
1
vote
1
answer
173
views
How to improve efficiency in periodicity detection?
Our data set has $10^4$ data points, but has a long baseline and many gaps.
If we bin the data, there would be $10^8$ data points ($[t,\rm {value}]$), but only about 1% are non-zero values.
How to i …
- 3,157
3
votes
2
answers
496
views
How is phase defined in a binary orbit with eccentricity?
Are orbital phases of the black spot in the figure measured from some angle or time/period?
Usually, how is phase=0 defined? It is relative to the line of apses perhaps with phase=0 at periastron?
Any …
- 3,157