Stellar flare study of nearby young moving group members with TESS Data

Abstract

We analyze TESS data to explore stellar flares and rotational characteristics in members of Nearby Young Moving Groups (NYMGs). Our study focuses on 417 members of NYMGs aged 10-150 Myr. Using detrended light curves from the TESS Science Office Quick-Look Pipeline, coupled with our own additional detrending scheme for fast rotators, we systematically detect and characterize 6,288 stellar flares from 27,416 flare candidates. We analyzed light curves from Cycles 1-4 of the TESS mission, finding that for each NYMG member analyzed, at least one stellar flare was present. Flare candidates are initially detected using the AltaiPony flare package, followed by a recovery flare amplitudes, durations, and local continuum background levels. We examine the relationship between flare energy, age, and mass, finding a reduced flaring rate for late-type stars with age for high energy flares, as well as 5.5 times more flares detected in the 10-minute cadence TESS data compared to 30-minute cadence data. Additionally, flare events with extreme energies (E >= 10^{34} erg) on M-dwarf and solar-type stars, providing implications for further exploration into exoplanet habitability.

References in corpus (18)

• The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
• New evolutionary models for pre-main sequence and main sequence low-mass stars down to the hydrogen-burning limit
• Improved parameters for extrasolar transiting planets
• On the Luminosity of Young Jupiters
• The Solar Neighborhood XVII: Parallax Results from the CTIOPI 0.9m Program -- Twenty New Members of the RECONS 10 Parsec Sample
• The Kepler Catalog of Stellar Flares
• The Evolution of Flare Activity with Stellar Age
• BANYAN. IX. The Initial Mass Function and Planetary-Mass Object Space Density of the TW Hya Association
• Flares in Open Clusters with K2. II. Pleiades, Hyades, Praesepe, Ruprecht 147, and M67
• Statistical Analysis of Stellar Flares from the First Three Years of TESS Observations
• Sun-like stars produce superflares roughly once per century
• Rotation of Low-Mass Stars in Upper Centaurus Lupus and Lower Centaurus Crux with TESS
• A Study of Flares in the Ultra-Cool Regime from SPECULOOS-South
• Testing Multiband (G, GBP, GRP, B, V and TESS) Standard Bolometric Corrections by Recovering Luminosity and Radii of 341 Host Stars
• Low-mass members of nearby young stellar moving groups from Gaia EDR3
• Observed Rate Variation in Superflaring G-type Stars
• Flare frequency in M dwarfs belonging to Young Moving Groups
• Why M-dwarf flares have limited impact on the atmospheric evaporation of sub-Neptunes and Earth-sized planets