Characterizing the Parents: Exoplanets Around Cool Stars

The large majority of stars in the Milky Way are late-type dwarfs, and the frequency of low-mass exoplanets in orbits around these late-type dwarfs appears to be high.

In order to characterize the radiation environments and habitable zones of the cool exoplanet host stars, stellar radius and effective temperature, and thus luminosity, are required. It is in the stellar low-mass regime, however, where the predictive power of stellar models is often limited by sparse data volume with which to calibrate the methods.

We show results from our CHARA survey that provides directly determined stellar parameters based on interferometric diameter measurements, trigonometric parallax, and spectral energy distribution fitting.

Kaspar von Braun (1), Tabetha S. Boyajian (2), Gerard T. van Belle, Andrew Mann (4), Stephen R. Kane (5) ((1) MPIA, (2) Yale, (3) Lowell, (4) U. of Texas, (5) SFSU) (Submitted on 1 Aug 2014)

Comments: 5 pages, 2 figures, 1 photo. To appear in the Cool Stars 18 Proceedings (Lowell Observatory 2014)

Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Earth and Planetary Astrophysics (astro-ph.EP)

Cite as: arXiv:1408.0175 [astro-ph.SR] (or arXiv:1408.0175v1 [astro-ph.SR] for this version)

Submission history From: Kaspar von Braun [v1] Fri, 1 Aug 2014 13:37:11 GMT (1937kb)

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