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The Light Curve Morphology Analysis

O-C diagram printer [alpha-version!] (version 2019.06)




Potentiometer (version 2019.07)
Calculate Lagrange pseudopotentials at L1L1) and L2L2) points

Mass ratio:






Roche geometry calculator (version 2021.08)
Calculate critical potentials, fill-out factor and radii of the contact binary components with a given mass ratio and pseudopotential Ω (ff=0 at ΩL1 and ff=1 at ΩL2)

Mass ratio:
Potential Ω:




Draw a model of a contact binary (version 2019.07)
Picture time!

Orbital phase:
Inclination:
Mass ratio:
Potential Ω1:
Potential Ω2:
Grid size for Star 1:
Grid size for Star 2:

Spot on star 1
Leave 0's if you don't want this spot
Spot co-latitude:
[deg]
Spot longitude:
[deg]
Spot radius:
[deg]
Spot on star 2
Leave 0's if you don't want this spot
Spot co-latitude:
[deg]
Spot longitude:
[deg]
Spot radius:
[deg]



Draw a synthetic light curve (version 2022.03)
W-D code-based LC-drawing machine designed for working with contact binaries; fixed at MODE=0, Kepler passband, square-root LD law, grid size N=40

Global parameters
Inclination:
Mass ratio:
Phase shift:
Pic title (optional):
Primary star parameters
Star 1 potential:
Star 1 temperature:
Star 1 LIGHT:
Star 1 albedo:
Star 1 grav. brightening:
Secondary star parameters
Star 2 potential:
Star 2 temperature:
Star 2 LIGHT:
Star 2 albedo:
Star 2 grav. brightening:

Spot parameters
leave "0's" if you don't want spots in your model
Primary star spot co-latitude:
Primary star spot longitude:
Primary star spot radius:
Primary star spot temperature:
Spot parameters
leave "0's" if you don't want spots in your model
Secondary star spot co-latitude:
Secondary star spot longitude:
Secondary star spot radius:
Secondary star spot temperature:

Photometric system parameters
Photom. filter central wavelenght
Photometric system:
Kepler | Johnson | Stromgren




Ultimate MinimaList [now off-line]
Batch search for minima in a multi-epoch observation set




Find a minimum / maximum! (version 2020.02)
Two columns, space delimited

Upload data:
Determination method:
Kwee & van Woerden
parabola-fit
Gaussian-fit