0
$\begingroup$

I would like to create program for calculation exoplanet properties, but I only found transit dataset from Kepler on NASA website. From light curve I can calculate:

  • planet radius $r$ from $\frac{r_{planet}^2}{R_{star}^2} = brightness\ drop$,
  • semi-major axis $a$ from $p^2 = a^3\frac{4\pi^2}{G(m_{planet} + M_{star})}$,
  • orbital period from period of transits.

But what about mass? Is there any public dataset of stars wavelength timeseries for radial velocity calculation?

Also, is there any way to calculate information about exoplanet atmosphere? I read that you can find out elements in atmosphere by comparing star light spectrum and star light spectrum during planet transit. Is any data publicly available for this purpose?

Improve this question
$\endgroup$
3
  • $\begingroup$ exoplanets.org/table $\endgroup$
    – kleingordon
    Commented May 28, 2020 at 17:54
  • $\begingroup$ @kleingordon Thank you, I see period and semiamplitude of radial velocity. There is also graph of radial velocity in time in detail (e. g. exoplanets.org/detail/HAT-P-27_b). Is there any way to obtain data for radial velocity as numbers (e. g. in csv) instead of image-graph? $\endgroup$
    – Michal
    Commented May 29, 2020 at 6:26
  • $\begingroup$ I'm afraid I don't know additional details about this resource. $\endgroup$
    – kleingordon
    Commented May 29, 2020 at 21:20

0

Reset to default

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.