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Light curves produced by wide-field exoplanet transit surveys such as CoRoT, Kepler, and TESS are affected by sensor-wide systematic noise which is correlated both spatiotemporally and with other instrumental parameters such as photometric…

Earth and Planetary Astrophysics · Physics 2023-12-05 Jamila Taaki , Athol Kemball , Farzad Kamalabadi

High-precision radial velocity planet searches have surveyed over ~2000 nearby stars and detected over ~200 planets. While these same stars likely harbor many additional planets, they will become increasingly challenging to detect, as they…

Astrophysics · Physics 2008-11-26 Eric B. Ford

The ability to make independent detections of the signatures of exoplanets with complementary telescopes and instruments brings a new potential for robust identification of exoplanets and precision characterization. We introduce PEXO, a…

Earth and Planetary Astrophysics · Physics 2019-11-21 Fabo Feng , Maksym Lisogorskyi , Hugh R. A. Jones , Sergei M. Kopeikin , R. Paul Butler , Guillem Anglada-Escude , Alan P. Boss

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

Rational Tracer (Ratracer) is a tool to simplify complicated arithmetic expressions using modular arithmetics and rational function reconstruction, with the main idea of separating the construction of expressions (via tracing, i.e.…

Data Analysis, Statistics and Probability · Physics 2022-11-08 Vitaly Magerya

The radial velocity method is one of the most successful techniques for detecting exoplanets. It works by detecting the velocity of a host star induced by the gravitational effect of an orbiting planet, specifically the velocity along our…

Instrumentation and Methods for Astrophysics · Physics 2020-08-26 David E. Jones , David C. Stenning , Eric B. Ford , Robert L. Wolpert , Thomas J. Loredo , Christian Gilbertson , Xavier Dumusque

Aims: Stellar activity may complicate the analysis of high-precision radial-velocity spectroscopic data when looking for exoplanets signatures. We aim at quantifying the impact of stellar spots on stars with various spectral types and…

Astrophysics · Physics 2009-11-13 Morgan Desort , Anne-Marie Lagrange , Franck Galland , Stephane Udry , Michel Mayor

Research into light curves from stars (temporal variation of brightness) has completely changed how exoplanets are discovered or characterised. This study including star light curves from the Kepler dataset as a way to discover exoplanets…

Earth and Planetary Astrophysics · Physics 2025-06-24 Krishna Chamarthy

The next generation of exoplanet-hunting spectrographs should deliver up to an order of magnitude improvement in radial velocity precision over the standard 1 m/s state of the art. This advance is critical for enabling the detection of…

In this work, we introduce RadarTrack, an innovative ego-speed estimation framework utilizing a single-chip millimeter-wave (mmWave) radar to deliver robust speed estimation for mobile platforms. Unlike previous methods that depend on…

Robotics · Computer Science 2025-04-22 Argha Sen , Soham Chakraborty , Soham Tripathy , Sandip Chakraborty

Change point detection is a commonly used technique in time series analysis, capturing the dynamic nature in which many real-world processes function. With the ever increasing troves of multivariate high-dimensional time series data,…

Computation · Statistics 2025-03-20 Martin Ondrus , Ivor Cribben

The architecture of planetary systems is a key piece of information to our understanding of their formation and evolution. This information also allows us to place the Solar System in the exoplanet context. An important example is the…

Earth and Planetary Astrophysics · Physics 2025-09-18 Manu Stalport , Michaël Cretignier , Luca Naponiello , Valérie Van Grootel

Reservoir Computing Networks (RCNs) belong to a group of machine learning techniques that project the input space non-linearly into a high-dimensional feature space, where the underlying task can be solved linearly. Popular variants of RCNs…

Machine Learning · Computer Science 2022-05-31 Peter Steiner , Azarakhsh Jalalvand , Simon Stone , Peter Birkholz

This document is one of the deliverable reports created for the ESCAPE project. ESCAPE stands for Energy-efficient Scalable Algorithms for Weather Prediction at Exascale. The project develops world-class, extreme-scale computing…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-08-20 Cyril Mazauric , Erwan Raffin , David Guibert

The search for exoplanets is an active field in astronomy, with direct imaging as one of the most challenging methods due to faint exoplanet signals buried within stronger residual starlight. Successful detection requires advanced image…

Instrumentation and Methods for Astrophysics · Physics 2025-03-24 Théo Bodrito , Olivier Flasseur , Julien Mairal , Jean Ponce , Maud Langlois , Anne-Marie Lagrange

We present the VASPKIT, a command-line program that aims at providing a powerful and user-friendly interface to perform high-throughput analysis of a variety of material properties from the raw data produced by the VASP code. It consists of…

Materials Science · Physics 2021-06-03 Vei Wang , Nan Xu , Jin Cheng Liu , Gang Tang , Wen-Tong Geng

The advancement of observational technologies and software for processing and visualizing spectro-polarimetric microwave data obtained with the RATAN-600 radio telescope opens new opportunities for studying the physical characteristics of…

Solar and Stellar Astrophysics · Physics 2024-12-12 I. Knyazeva , I. Lysov , E. Kurochkin , A. Shendrik , D. Derkach , N. Makarenko

We present the public release of EXP, a basis function expansion C++ library and Python package for running N-body galactic simulations and dynamical discovery. EXP grew out of the need for methodology that seamlessly connects theoretical…

Astrophysics of Galaxies · Physics 2025-05-13 Michael S. Petersen , Martin D. Weinberg

We present a novel method for direct detection and characterization of exoplanets from space. This method uses four collecting telescopes, combined with phase chopping and a spectrometer, with observations on only a few baselines rather…

Earth and Planetary Astrophysics · Physics 2015-05-27 Taro Matsuo , Wesley A. Traub , Makoto Hattori , Motohide Tamura

Transmission spectroscopy is among the most fruitful techniques to infer the main opacity sources present in the upper atmosphere of a transiting planet and to constrain the composition of the thermosphere and of the unbound exosphere. Not…

Earth and Planetary Astrophysics · Physics 2022-11-09 Daniela Sicilia , Luca Malavolta , Lorenzo Pino , Gaetano Scandariato , Valerio Nascimbeni , Giampaolo Piotto , Isabella Pagano