PlanetPack3: a radial-velocity and transit analysis tool for exoplanets

Abstract

PlanetPack, initially released in 2013, is a command-line software aimed to facilitate exoplanets detection, characterization, and basic dynamical $N$-body simulations. This paper presents the third major release of PlanetPack that incorporates multiple improvements in comparison to the legacy versions. The major ones include: (i) modelling noise by Gaussian processes that in addition to the classic white noise may optionally include multiple components of the red noise, modulated noise, quasiperiodic noise (to be added soon in minor subversions of the 3.x series); (ii) an improved pipeline for TTV analysis of photometric data that includes quadratic limb-darkening model and automatic red-noise detection; (iii) self-consistent joint fitting of photometric + radial velocity data with full access to all the functionality inherited from the legacy PlanetPack; (iv) modelling of the Rossiter-McLaughlin effect for arbitrary eclipser/star radii ratio, and optionally including corrections that take into account average characteristics of a multiline stellar spectrum; (v) speed improvements through multithreading and CPU-optimized BLAS libraries. PlanetPack was written in pure C++ (standard of 2011), and is expected to be run on a wide range of platforms.

15 pages, 1 figure, no tables; revised version submitted to Astronomy & Computing; the source code is available for download at https://sourceforge.net/projects/planetpack/

References in corpus (13)

• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Fast and scalable Gaussian process modeling with applications to astronomical time series
• EXOFAST: A fast exoplanetary fitting suite in IDL
• Prospects for the Characterization and Confirmation of Transiting Exoplanets via the Rossiter-McLaughlin Effect
• Inferring probabilistic stellar rotation periods using Gaussian processes
• Efficient fitting of multiplanet Keplerian models to radial velocity and astrometry data
• The Apparently Decaying Orbit of WASP-12
• Accounting for velocity jitter in planet search surveys
• The impact of red noise in radial velocity planet searches: Only three planets orbiting GJ581?
• Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf
• Radial Velocity Data Analysis with Compressed Sensing Techniques
• Benchmarking the power of amateur observatories for TTV exoplanets detection
• Enhanced models for stellar Doppler noise reveal hints of a 13-year activity cycle of 55 Cancri

Cited by in corpus (7)

• Juliet: a versatile modelling tool for transiting and non-transiting exoplanetary systems
• Homogeneously derived transit timings for 17 exoplanets and reassessed TTV trends for WASP-12 and WASP-4
• MCMCI: A code to fully characterise an exoplanetary system
• WASP-4 transit timing variation from a comprehensive set of 129 transits
• Doppler confirmation of TESS planet candidate TOI1408.01: grazing transit and likely eccentric orbit
• The impact of photospheric brightness field on exoplanetary transit timings and the TTV excess of HD 189733 b
• Cleaning WASP-33 b transits from the host star photometric variability: analysis of TESS data from two sectors