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A crucial aspect of understanding planet formation is determining the binarity of the host stars. Results from radial velocity surveys and the follow-up of Kepler exoplanet candidates have demonstrated that stellar binarity certainly does…

In this chapter I give an overall description of the structure and evolution of stars of different masses, and review the main ingredients included in state-of-the-art calculations aiming at reproducing observational features. I give…

Solar and Stellar Astrophysics · Physics 2017-12-27 Víctor Silva Aguirre

The characteristics of irradiated solar system planetary atmospheres have been studied for decades, consequently modern planetary science benefits from an exhaustive body of ground- and space-based data. The study of extrasolar planetary…

Astrophysics · Physics 2008-09-29 Mark S. Marley

The disciplines of asteroseismology and extrasolar planet science overlap methodically in the branch of high-precision photometric time series observations. Light curves are, amongst others, useful to measure intrinsic stellar variability…

Solar and Stellar Astrophysics · Physics 2010-05-20 Sonja Schuh

In recent years a paradigm shift has occurred in exoplanet science, wherein low-mass stars are increasingly viewed as a foundational pillar of the search for potentially habitable worlds in the solar neighborhood. However, the formation…

Earth and Planetary Astrophysics · Physics 2022-04-06 Matthew S. Clement , Elisa V. Quintana , Billy L. Quarles

Most detected transiting planets have orbits which would fit within the one of Mercury, exposing them to intense stellar irradiation and interactions that significantly alter their properties. In contrast, colder planets with longer orbital…

Earth and Planetary Astrophysics · Physics 2026-04-13 Solène Ulmer-Moll , Babatunde Akinsanmi , Simon Müller

The currently feasible method of detection of Earth-mass planets is transit photometry, with detection probability decreasing with a planet's distance from the star. The existence or otherwise of short-period terrestrial planets will tell…

Astrophysics · Physics 2009-11-10 Rosemary A. Mardling , D. N. C. Lin

Differential spectroscopy during exoplanet transits permits to reconstruct spectra of small stellar surface portions that successively become hidden behind the planet. The center-to-limb behavior of stellar line shapes, asymmetries and…

Solar and Stellar Astrophysics · Physics 2014-08-08 Dainis Dravins , Hans-Günter Ludwig , Erik Dahlén , Hiva Pazira

Among the most highly valued of exoplanetary discoveries are those of terrestrial planets found to reside within the Habitable Zone (HZ) of the host star. In particular, those HZ planets with relatively bright host stars will serve as…

Earth and Planetary Astrophysics · Physics 2018-07-25 Stephen R. Kane

Understanding planetary habitability is one of the major challenges of the current scientific era, particularly given the discovery of a large and diverse terrestrial exoplanet population. Discerning the primary factors that contribute to…

Earth and Planetary Astrophysics · Physics 2024-11-05 Stephen R. Kane , Richard Ernst , Cedric Gillmann , Christopher Jones , Timothy Lyons , Christopher Tino

With thousands of exoplanets now identified, the characterization of habitable planets and the potential identification of inhabited ones is a major challenge for the coming decades. We review the current working definition of habitable…

Earth and Planetary Astrophysics · Physics 2024-01-15 S. Mazevet , A. Affholder , B. Sauterey , A. Bixel , D. Apai , R Ferriere

Analyzing global starburst properties in various kinds of starburst and post-starburst galaxies and relating them to the properties of the star cluster populations they form, I explore the conditions for the formation of massive, compact,…

Astrophysics · Physics 2009-12-04 Uta Fritze

Recent detections of potentially habitable exoplanets around sunlike stars demand increased exploration of the physical conditions that can sustain life, by whatever methods available. Insight into these conditions can be gained by…

Earth and Planetary Astrophysics · Physics 2023-02-27 McCullen Sandora , Vladimir Airapetian , Luke Barnes , Geraint F. Lewis

We describe how the accurate characterization of exoplanetary atmospheres in the ELT and JWST era will inevitably require taking into consideration the stellar inhomogeneities caused by convection and magnetic fields. The existing evidence…

Solar and Stellar Astrophysics · Physics 2019-04-15 Adam F. Kowalski , Karel Schrijver , Valentin Martinez Pillet , Serena Criscuoli

This article reviews the emerging field of exo-geoscience, focusing on the geological and geophysical processes thought to influence the evolution and (eu)habitability of rocky exoplanets. We examine the possible roles of planetary…

Earth and Planetary Astrophysics · Physics 2026-01-21 Tilman Spohn , Akli Roberge , M. J. Way , João C. Duarte , Francesca Miozzi , Philipp Baumeister , Paul Byrne , Charles Lineweaver

The polarization of light is a critically under-utilized, rich source of information in astronomy. For stars in particular, surface magnetism polarization that can be detected and measured with spectro-polarimetry. Many questions about…

With 40 or more transiting exoplanets now known, the time is ripe to seek patterns and correlations among their observed properties, which may give important insights into planet formation, structure, and evolution. This task is made…

Astrophysics · Physics 2009-11-13 Guillermo Torres , Joshua N. Winn , Matthew J. Holman

Stellar activity and planetary atmospheric properties have the potential to strongly influence habitability. To date, neither have been adequately studied in the multiverse context, so there has been no assessment of how these effects…

Earth and Planetary Astrophysics · Physics 2023-03-07 McCullen Sandora , Vladimir Airapetian , Luke Barnes , Geraint F. Lewis

A survey of currently known planet-hosting stars indicates that approximately 25% of extrasolar planetary systems are within dual-star environments. Several of these systems contain stellar companions on moderately close orbits, implying…

Earth and Planetary Astrophysics · Physics 2009-08-25 Nader Haghighipour
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