STRONG BALMER EMISSION LINES IN YOUNG BROWN DWARFS

Tóm tắt

The presence of Balmer emission lines is an indicator of magnetic activity in stars. This paper presents the spectroscopic observations at blue wavelengths of nearby young brown dwarfs with previously detected lithium. All targets show strong Balmer emission lines, indicating that these brown dwarfs are magnetically active. A forbidden emission line is marginally detected in DENIS2022-5645, implying that this young brown dwarf is still an accreting material.