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 \(R_\odot\)