speckle_limits: Detection limits from acf

In drastega/specklestar: Reduction of Speckle Data from BTA 6-m Telescope

Detection limits from acf

Description

Calculate detection limits (dm for given rho) from empirical autocorrelation function using formalism described in 2010AJ....139..743T (Tokovinin, Mason & Hartkopf, 2010)

Usage

speckle_limits(im, band, rho_lim = 1)

Arguments

im	matrix with acf.
band	a character string '550', '600' or '800'.
rho_lim	limit in arc seconds (default is 1”, maximum is 2”).

Value

List of x and y with limits (x is rho and y is dm).

Examples

obj_filename <- system.file("extdata", "ads15182_550_2_frames.dat", package = "specklestar")
pow_spec_diff <- speckle_ps_diff(obj_filename)
acf <- speckle_acf(pow_spec_diff)
lim <- speckle_limits(acf, '550')

drastega/specklestar documentation built on Nov. 20, 2023, 8:21 p.m.