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Context: Planets outside our solar system transiting their host star, i. e. those with an orbital inclination near 90 degree, are of special interest to derive physical properties of extrasolar planets. With the knowledge of the host star's…

Astrophysics · Physics 2009-11-13 S. D. Huegelmeyer , S. Dreizler , D. Homeier , A. Reiners

In the era of JWST, observations of hot Jupiter atmospheres are becoming increasingly precise. As a result, the signature of limb asymmetries due to temperature or abundance differences and the presence of aerosols can now be directly…

Several processes can cause the shape of an extrasolar giant planet's shadow, as viewed in transit, to depart from circular. In addition to rotational effects, cloud formation, non-homogenous haze production and movement, and dynamical…

Earth and Planetary Astrophysics · Physics 2014-11-20 Jason W. Barnes , Curtis S. Cooper , Adam P. Showman , William B. Hubbard

Transiting exoplanet parameter estimation from time-series photometry and Doppler spectroscopy is fundamental to study planets' internal structures and compositions. Here we present the code pyaneti, a powerful and user-friendly software…

Earth and Planetary Astrophysics · Physics 2018-09-19 O. Barragán , D. Gandolfi , G. Antoniciello

In today's modern wide-field galaxy surveys, there is the necessity for parametric surface brightness decomposition codes characterised by accuracy, small degree of user intervention, and high degree of parallelisation. We try to address…

Astrophysics of Galaxies · Physics 2023-03-03 Luca Tortorelli , Amata Mercurio

I present ExoIris, a user-friendly Python package for exoplanet transmission and emission spectroscopy. Unlike existing tools, ExoIris models two-dimensional spectrophotometric transit time series directly and supports the joint analysis of…

Earth and Planetary Astrophysics · Physics 2026-02-11 Hannu Parviainen

Planets can emit polarized thermal radiation, just like brown dwarfs. We present calculated thermal polarization signals from hot exoplanets, using an advanced radiative transfer code that fully includes all orders of scattering by gaseous…

Earth and Planetary Astrophysics · Physics 2015-05-30 R. J. de Kok , D. M. Stam , T. Karalidi

We describe Rabacus, a Python package for calculating the transfer of hydrogen ionizing radiation in simplified geometries relevant to astronomy and cosmology. We present example solutions for three specific cases: 1) a semi-infinite slab…

Cosmology and Nongalactic Astrophysics · Physics 2015-02-26 Gabriel Altay , John Wise

The physical characteristics and atmospheric chemical composition of newly discovered exoplanets are often inferred from their transit spectra which are obtained from complex numerical models of radiative transfer. Alternatively, simple…

Earth and Planetary Astrophysics · Physics 2021-12-23 Konstantin T. Matchev , Katia Matcheva , Alexander Roman

We present an IDL graphical user interface-driven software package designed for the analysis of extrasolar planet transit light curves. The Transit Analysis Package (TAP) software uses Markov Chain Monte Carlo (MCMC) techniques to fit light…

Earth and Planetary Astrophysics · Physics 2015-05-27 J. Zachary Gazak , John A. Johnson , John Tonry , Jason Eastman , Andrew W. Mann , Eric Agol

To prepare for the analyses of the future PLATO light curves, we develop a deep learning model, Panopticon, to detect transits in high precision photometric light curves. Since PLATO's main objective is the detection of temperate Earth-size…

Earth and Planetary Astrophysics · Physics 2025-02-26 H. G. Vivien , M. Deleuil , N. Jannsen , J. De Ridder , D. Seynaeve , M. -A. Carpine , Y. Zerah

We present a numerical code to simulate maps of Galactic emission in intensity and polarization at microwave frequencies, aiding in the design of Cosmic Microwave Background experiments. This Python code builds on existing efforts to…

Cosmology and Nongalactic Astrophysics · Physics 2017-06-21 Ben Thorne , Jo Dunkley , David Alonso , Sigurd Naess

Detection of a planetary ring of exoplanets remains as one of the most attractive but challenging goals in the field. We present a methodology of a systematic search for exoplanetary rings via transit photometry of long-period planets. The…

Earth and Planetary Astrophysics · Physics 2017-04-05 Masataka Aizawa , Sho Uehara , Kento Masuda , Hajime Kawahara , Yasushi Suto

We present PlanetPack, a new software tool that we developed to facilitate and standardize the advanced analysis of radial velocity (RV) data for the goal of exoplanets detection, characterization, and basic dynamical $N$-body simulations.…

Instrumentation and Methods for Astrophysics · Physics 2013-08-06 Roman V. Baluev

The Wide Field Camera Transit Survey is a pioneer program aimed to search for extra-solar planets in the near-infrared. The standard data reduction pipeline of the program uses aperture photometry to construct the light curves. We…

We describe a new metric that uses machine learning to determine if a periodic signal found in a photometric time series appears to be shaped like the signature of a transiting exoplanet. This metric uses dimensionality reduction and…

Transit spectroscopy is a powerful tool to decode the chemical composition of the atmospheres of extrasolar planets. In this paper we focus on unsupervised techniques for analyzing spectral data from transiting exoplanets. We demonstrate…

Earth and Planetary Astrophysics · Physics 2022-01-11 Konstantin T. Matchev , Katia Matcheva , Alexander Roman

dtaianomaly is an open-source Python library for time series anomaly detection, designed to bridge the gap between academic research and real-world applications. Our goal is to (1) accelerate the development of novel state-of-the-art…

Machine Learning · Computer Science 2025-02-21 Louis Carpentier , Nick Seeuws , Wannes Meert , Mathias Verbeke

Characterizing the geometry of an object orbiting around a star from its transit light curve is a powerful tool to uncover various complex phenomena. This problem is inherently ill-posed, since similar or identical light curves can be…

Earth and Planetary Astrophysics · Physics 2026-04-16 Ushasi Bhowmick , Shivam Kumaran

Space missions (CHEOPS, JWST, PLATO) facilitate detailed characterization of exoplanets. This work provides a framework to characterize cloud and climate properties of close-in gas giants via transit depth asymmetries from the optical to…

Earth and Planetary Astrophysics · Physics 2026-04-08 Ludmila Carone , Christiane Helling , Sebastian Gernjak , Hanna Leitner , Tamara Janz