chronos

Setup

The package requires python 3.6:

$ conda create -n chronos python=3.6
$ conda activate chronos

Installation

$ git clone git@github.com:jpdeleon/chronos.git
$ cd chronos
$ pip install -e .

Note that batman package requires gcc. To install:

sudo apt install gcc

test

$ pytest tests

Modules

• target.py: star bookkeeping, e.g. position, catalog cross-matching, archival data look-up
• star.py: physics-related calculations, e.g. extinction, spectral typing, isochrones, gyrochronology (inherits target)
• planet.py: planet parameters calculations (inherits star)
• tpf.py: targetpixel file manipulation
• lightcurve.py: light curve analysis either using SPOC, TGLC, QLP, DIAMANTE, PATHOS, or custom pipeline for short and long cadence (inherits tpf)
• k2.py: tpf and light curve for K2; likely to be ingested/refactored to tpf.py & lightcurve.py
• cluster.py: cluster catalog, cluster analysis + plotting
• tglc.py, qlp.py, cdips.py, pathos.py, & diamante.py: api for TGLC, QLP, CDIPS, PATHOS, and DIAmante pipelines
• plot.py: custom plotting functionalities
• utils.py: useful utilities

Dependencies

• astropy & astroquery for star and catalog bookkeeping
• lightkurve, transitleastsquares, & wotan for light curve analysis
• emcee & corner for MCMC analysis
• isochrones for isochrones analysis
• dustmaps for extinction calculation
• stardate for gyrochronology
• mrexo for mass-radius relation
• triceratops for FPP calculation based on lightcurve shape and contrast curve constraints

For next update

• GAIA eDR3 Wide binaries catalog
• LAMOST DR6 spectra
• vetting
• TESS_Deblending
• apertureoptimizer
• pyia
• psfmachine
• GALAH DR3
• TASOC
• KEP-SEISMIC
• Kepler-smear
• platon for calculating transmission spectrum
• theJoker for two-body MCMC sampling
• spock, dynamite, & resonance widths for orbit stability analysis
• exoCMD for exoplanet color-magnitude diagrams
• contaminante for pixel level modeling
• allesfitter for light curve model fitting
• SPISEA for stellar population analysis
• sedfitter for SED fitting
• maelstrom for pulsating binary analysis
• stella & fleck for flare detection and modeling
• eleanor & f3 for TESS FFI; See also DIAmante, Montalto+2020
• envelope for planet's envelope fraction estimation using MESA simulations based on Milholland+19,20
• evolstate for assigning stellar evolutionary state
• barycorrpy for conversion to BJD_TDB

Examples

Check examples in nbviewer.

TESS exoplanet candidates catalog

• TOI (csv)
• CTOI (csv)
• CDIPS (Bouma+2019)
• PATHOS (Nardiello+2020)
• DIAmante (Montalto+2020)

See also

tql for TESS Quick Look plotting