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A terrestrial planet candidate in a temperate orbit around Proxima Centauri

3 Pith papers cite this work. Polarity classification is still indexing.

3 Pith papers citing it
abstract

At a distance of 1.295 parsecs, the red-dwarf Proxima Centauri ($\alpha$ Centauri C, GL 551, HIP 70890, or simply Proxima) is the Sun's closest stellar neighbor and one of the best studied low-mass stars. It has an effective temperature of only $\sim$ 3050 K, a luminosity of $\sim$0.1 per cent solar, a measured radius of 0.14 R$_\odot$ and a mass of about 12 per cent the mass of the Sun. Although Proxima is considered a moderately active star, its rotation period is $\sim$ 83 days, and its quiescent activity levels and X-ray luminosity are comparable to the Sun's. New observations reveal the presence of a small planet orbiting Proxima with a minimum mass of 1.3~Earth masses and an orbital period of $\sim$11.2 days. Its orbital semi-major axis is $\sim0.05$ AU, with an equilibrium temperature in the range where water could be liquid on its surface.

fields

astro-ph.EP 3

years

2026 3

verdicts

UNVERDICTED 3

representative citing papers

Star-planet interaction in the Proxima system

astro-ph.EP · 2026-05-21 · unverdicted · novelty 7.0

Spectroscopic monitoring detects phase-locked flares to Proxima d and flare-intensity modulation by Proxima b, producing a -16 G polar field estimate for the inner planet via Poynting-flux modeling.

citing papers explorer

Showing 3 of 3 citing papers.

  • The Mid-Infrared Transmission Spectrum of the Temperate Sub-Neptune TOI-270 d astro-ph.EP · 2026-07-01 · unverdicted · none · ref 253 · internal anchor

    First mid-IR transmission spectrum of TOI-270 d shows molecular features with Bayesian evidence ln B = 2.8-5.3 and identifies candidate trace molecules from an agnostic search of 203 species.

  • Star-planet interaction in the Proxima system astro-ph.EP · 2026-05-21 · unverdicted · none · ref 185 · internal anchor

    Spectroscopic monitoring detects phase-locked flares to Proxima d and flare-intensity modulation by Proxima b, producing a -16 G polar field estimate for the inner planet via Poynting-flux modeling.

  • Upper Limits on Planet-Induced GHz Radio Emission from Inactive M Dwarfs astro-ph.EP · 2026-06-18 · unverdicted · none · ref 82 · internal anchor

    No bursty planet-induced radio emission detected from five inactive M dwarfs; upper limits constrain GJ 367 b magnetosphere to <0.8 G under assumed stellar wind conditions.