Questions tagged [radial-velocity]
The radial-velocity tag has no usage guidance.
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How to determine the time of periastron passage (T) of a single lined spectroscopic binary?
I am working on finding spectroscopic elements of a single lined spectroscopic binary. All I have is irregularly spaced radial velocity data which needs to be phase folded to plot a velocity curve (RV ...
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Cross-correlations between Lagrange and Fourier synthesis
In the context of forecast for large surveys, I have to make cross-correlations between 2D (with angular coordinates of Lagrange transformation for GC photometric and Weak Lensing) and 3D (Fourier ...
user16492
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Radial velocity exoplanet search - can mathematical details be explained? (Bayesian periodogram MCMC)
Radial velocity (RV) is one of main methods for exoplanet search.
The popular description of the method sounds simple - one should measure periodic Doppler variation of a spectral line of a star and ...
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Using the 'exoplanet' module to fit a radial velocity curve for a binary star system
As part of a project, I am trying to fit a radial velocity curve using the tutorial for the binary star system (EBLM J0608-59) My code is quite similar to the tutorial, but as it is only one body ...
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Time average of radial velocities of multiple galaxies
Equation (34) in this paper shows an average radial velocity. The author wrote that the value was obtained by measuring the radial velocities of many galaxies in the cluster of galaxy and by averaging ...
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Plotting GAIA barycentric radial velocity data with python
Does anybody know of a good tutorial on how to use python and astropy to generate plots of GAIA, RAVE or any other database of barycentric (heliocentric) radial velocity data of stars in our galaxy?
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What percentage of Earth-sized planets in a habitable zone can be detected by the radial velocity method?
What percentage of Earth-sized planets in a habitable zone can be detected by the radial velocity method?
I understand that larger planets and closer planets are detected more easily; and I assume ...
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