Extrasolar Planets

Two Bright M Dwarfs Hosting Ultra-Short-Period Super-Earths with Earth-like Compositions

By Keith Cowing
astro-ph.EP
March 25, 2021
Filed under
Two Bright M Dwarfs Hosting Ultra-Short-Period Super-Earths with Earth-like Compositions
TLS transit signal detections for TOI-1634 (top) and TOI-1685 (bottom). The left panels show SDE vs orbital period; the middle panels show the data folded on the detected period with the TLS model in blue, binned data in black; he right panels show the individual transit depths.

We present observations of two bright M dwarfs (TOI-1634 and TOI-1685: J=9.5−9.6) hosting ultra-short period (USP) planet candidates, identified by the TESS mission.

The two stars are similar in temperature, mass, and radius, and the planet candidates are both super-Earth-sized (1.25R⊕Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
Cite as: arXiv:2103.12760 [astro-ph.EP] (or arXiv:2103.12760v1 [astro-ph.EP] for this version)
Submission history
From: Hirano Teruyuki
[v1] Tue, 23 Mar 2021 18:01:03 UTC (3,204 KB)
https://arxiv.org/abs/2103.12760
Astrobiology

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