Age-Rotation-Activity Relations for M Dwarf Stars Based on ASAS Photometric Data

Understand

Based on analysis of photometric observations of nearby M type stars obtained with ASAS, 31 periodic variables were detected.

• The determined periods are assumed to be related to rotation periods of the investigated stars.
• Among them 10 new variables with periods longer than 10 days were found, which brings the total number of slowly rotating M stars with known rotation periods to 12 objects.
• X-ray activity and rotation evolution of M stars follows the trends observed in G-K type stars.