Locate a stellar flare from the M dwarf LAMOST J1332+5057
Guang-Wei Li, Gui-Ping Zhou, Bing Du, Yan-Xin Guo, Wei-Hua Wang
astro-ph.SR, astro-ph.EP
Submitted: 2026-07-27
Comments: 15 pages, 9 figures, 2 tables
Journal ref: The Astrophysical Journal, 1006:170 (12pp), 2026 August 1
License: http://creativecommons.org/licenses/by-nc-nd/4.0/
The gist: Young M-type stars exhibit frequent flares, which would seriously impact their habitable planets.
Terminology
Abstract
Young M-type stars exhibit frequent flares, which would seriously impact their habitable planets. Since stellar surfaces cannot be resolved, flare locations remain unknown. Here, by using the Mg I b emission line in LAMOST spectra, the location of a stellar flare from a young M dwarf is pinpointed at (-123.0+8.0-5.8, 80.5+2.9-3.2) in degree in the polar region. Our method can be used to accurately locate stellar flares. This would enable us to assess the impact of stellar flares on planets more accurately and improve our understanding of stellar dynamo models.
Sources
- LAMOST Medium-Resolution Spectroscopic Survey (LAMOST-MRS): Scientific goals and survey plan
- IAU 2015 Resolution B3 on Recommended Nominal Conversion Constants for Selected Solar and Planetary Properties
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