Star#
- class nuance.Star#
A class to hold stellar parameters and variability characteristics.
Methods
__init__
([radius, mass, amplitude, period])delta2radius
(delta)Planet's radius from relative amplitude (in \(R_\oplus\)).
min_radius
(period, SNR, N, sigma)Given a target SNR and periods, returns the minimum planetary radius detectable (in \(R_\oplus\)).
period2tau
(orbital_period)Relative duration given orbital period.
period_grid
(time_span[, period_max, ...])Grid of optimal periods following Ofir (2014) (in days).
radius2delta
(radius)Relative amplitude given planet's radius.
roche_period
([density])Roche limit for a given density and assuming circular orbit (in days).
snr
(orbital_period, radius, N, sigma)Transit signal-to-noise-ratio.
tau2period
(tau)Period given relative duration (in days).
transit_depth
(radius)Transit depth from planet's radius (in \(R_\oplus\)).
transit_duration
(orbital_period)Transit duration from orbital period (days).
Attributes
amplitude
Stellar variability amplitude (peak to peak)
density
Stellar density in \(M_\odot.R_\odot^{-3}\).
mass
Stellar mass in \(M_\odot\)
omega
Stellar variability angular frequency.
period
Stellar variability period in days
radius
Stellar radius in \(R_\odot\)