Posted inProxima Centauri Titanium Oxide Absorption as a Proxy to Detect Long term Variation and Activity Cycle in Proxima Centauri by Keith CowingAugust 15, 2026August 15, 2026 [astro-ph.SR] Stellar activity cycles on magnetically active stars can be estimated by molecular absorption bands.
![TiO absorption variation during 8 years on surface of proxima centauri. Vertical lines depicts regions were used to measure B index. -- [astro-ph.SR]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Titanium-Oxide.png?resize=1200%2C715&ssl=1)