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Related papers: Modeling the meteoroid environment far from the ec…

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Atmospheric Extreme Events (EEs) cause severe damages to human societies and ecosystems. The frequency and intensity of EEs and other associated events are increasing in the current climate change and global warming risk. The accurate…

Cometary meteoroid trails exist in the vicinity of comets, forming fine structure of the interplanetary dust cloud. The trails consist predominantly of cometary particles with sizes of approximately 0.1 mm to 1 cm which are ejected at low…

Earth and Planetary Astrophysics · Physics 2020-11-18 Harald Krüger , Peter Strub , Max Sommer , Nicolas Altobelli , Hiroshi Kimura , Ann-Kathrin Lohse , Eberhard Grün , Ralf Srama

The search of life in the Universe is a fundamental problem of astrobiology and a major priority for NASA. A key area of major progress since the NASA Astrobiology Strategy 2015 (NAS15) has been a shift from the exoplanet discovery phase to…

The use of machine learning is becoming ubiquitous in astronomy, but remains rare in the study of the atmospheres of exoplanets. Given the spectrum of an exoplanetary atmosphere, a multi-parameter space is swept through in real time to find…

Earth and Planetary Astrophysics · Physics 2018-06-12 Pablo Marquez-Neila , Chloe Fisher , Raphael Sznitman , Kevin Heng

The physical composition and structure of meteoroids gives us insight into the formation processes of their parent asteroids and comets. The strength of and fundamental grain sizes in meteoroids tell us about the environment in which small…

Earth and Planetary Astrophysics · Physics 2019-04-10 Margaret D. Campbell-Brown

The discovery of habitable exoplanets has long been a heated topic in astronomy. Traditional methods for exoplanet identification include the wobble method, direct imaging, gravitational microlensing, etc., which not only require a…

Earth and Planetary Astrophysics · Physics 2022-04-05 Yucheng Jin , Lanyi Yang , Chia-En Chiang

Coronal Mass Ejections (CMEs) are immense eruptions of plasma and magnetic fields that are propelled outward from the Sun, sometimes with velocities greater than 2000 km/s. They are responsible for some of the most severe space weather at…

Solar and Stellar Astrophysics · Physics 2023-11-08 Jon Linker , Tibor Torok , Cooper Downs , Ronald Caplan , Viacheslav Titov , Andres Reyes , Roberto Lionello , Pete Riley

Whether there is a cosmic shoreline that divides terrestrial planets which have atmospheres from those that don't is one of the biggest open questions in exoplanet science. Most atmosphere searches have focused on terrestrial planets around…

Earth and Planetary Astrophysics · Physics 2026-04-01 Michael Radica

Secondary eclipse observations are a powerful way to investigate whether or not a rocky exoplanet hosts an atmosphere, as an atmospheric presence would transport heat to the nightside and render the dayside colder than anticipated. The…

Earth and Planetary Astrophysics · Physics 2026-04-22 Christopher Monaghan , Björn Benneke , Nicholas J. Connors , Louis-Philippe Coulombe , Pierre-Alexis Roy

Exoplanets are now being discovered in profusion. However, to understand their character requires spectral models and data. These elements of remote sensing can yield temperatures, compositions, and even weather patterns, but only if…

Earth and Planetary Astrophysics · Physics 2015-06-23 Adam Burrows

It has recently been shown by Egal et al. (2017) that some types of existing meteor in-atmosphere trajectory estimation methods may be less accurate than others, particularly when applied to high precision optical measurements. The…

Earth and Planetary Astrophysics · Physics 2020-04-23 Denis Vida , Peter S. Gural , Peter G. Brown , Margaret Campbell-Brown , Paul Wiegert

Motivated by the need to improve the ability to forecast whether a certain coronal mass ejection (CME) is to impact Earth, and by the insufficiency of statistical studies that analyze the whole erupting system with the focus on the…

Solar and Stellar Astrophysics · Physics 2020-10-21 M. V. Sieyra , M. Cécere , H. Cremades , F. A. Iglesias , A. Sahade , M. Mierla , G. Stenborg , A. Costa , M. West , E. D'Huys

Cloud computing offers an opportunity to run compute-resource intensive climate models at scale by parallelising model runs such that datasets useful to the exoplanet community can be produced efficiently. To better understand the…

Meteors carry important and indispensable information about the interplanetary environment, which can be used to understand the origin and evolution of our solar system. We have developed a Multi-station Meteor Monitoring ($\rm M^3$) system…

Instrumentation and Methods for Astrophysics · Physics 2024-10-15 Z. Li , H. Zou , J. Liu , J. Ma , X. Zhao , X. Li , Z. Tu , B. Zhang , R. Wang , S. Wang , Marco Xue

This is a review of a decade-long effort to develop novel tools for exploring magnetism in cold astrophysical media and to establish a new field of molecular spectropolarimetry since Berdyugina et al. (2000). It is most directly applicable…

Solar and Stellar Astrophysics · Physics 2010-11-04 Svetlana V. Berdyugina

The solar wind drag-based model is a widely used framework for predicting the propagation of Coronal Mass Ejections (CMEs) through interplanetary space. This model primarily considers the aerodynamic drag exerted by the solar wind on CMEs.…

Solar and Stellar Astrophysics · Physics 2025-02-19 Mattia Rossi , Sabrina Guastavino , Michele Piana , Anna Maria Massone

Many existing optical meteor trajectory estimation methods use the approximation that the velocity of the meteor at the beginning of its luminous phase is equivalent to its velocity before atmospheric entry. Meteoroid kinetic energy loss…

Earth and Planetary Astrophysics · Physics 2018-08-01 Denis Vida , Peter G. Brown , Margaret Campbell-Brown

Solar coronal mass ejections (CMEs) are the most significant drivers of adverse space weather at Earth, but the physics governing their propagation through the heliosphere is not well understood. While stereoscopic imaging of CMEs with the…

Solar and Stellar Astrophysics · Physics 2010-11-15 Jason P. Byrne , Shane A. Maloney , R. T. James McAteer , Jose M. Refojo , Peter T. Gallagher

Geometric modelling of Coronal Mass Ejections (CMEs) is a widely used tool for assessing their kinematic evolution. Furthermore, techniques based on geometric modelling, such as ELEvoHI, are being developed into forecast tools for space…