Methods To Characterise Exoplanet Host Stars From Spectroscopy

A key to understand exoplanets is characterisation of their host stars. One of the most powerful tools to characterise stellar properties like effective temperature, surface gravity and metallicity, is spectroscopy based on observations of stellar atmospheres.

This chapter describes the stellar parameters that can be derived from a spectrum with examples of well established methods and theoretical model atmospheres.

Combined with photometry and parallax measurements, the outcome of the spectroscopic modelling can be used to derive stellar radii and masses.

Carina M. Persson

Comments: To be published in: Handbook of Exoplanets, 2nd Edition, Hans Deeg and Juan Antonio Belmonte (Eds. in Chief), Springer International Publishing AG, part of Springer Nature
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
Cite as: arXiv:2411.19306 [astro-ph.EP](or arXiv:2411.19306v1 [astro-ph.EP] for this version)
https://doi.org/10.48550/arXiv.2411.19306
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Submission history
From: Carina Persson M
[v1] Thu, 28 Nov 2024 18:28:58 UTC (414 KB)
https://arxiv.org/abs/2411.19306
Astrobiology,