Automatic Detection of Accretion Bursts in Young Stellar Objects: a New Algorithm for Long--Term Sky Surveys
arXiv:2203.11621 · doi:10.1016/j.newast.2022.101813
Abstract
Young stellar objects in their pre-main sequence phase are characterized by irregular changes in brightness, generally attributed to an increase of the mass accretion rate due to various kind of instabilities occurring in the circumstellar disk. In the era of large surveys aimed to monitor the sky, we present a pipeline to detect irregular bursts, in particular EXors-like ( EX Lupi type eruptive variables), in the light curves. The procedure follows a heuristic approach and is tested against the light curves already collected for a few objects presently recognized as bona fide or candidate EXors.
19 pages, 5 figures. In press in New Astronomy
References in corpus (6)
- Results of the ROTOR-program. I. The long-term photometric variability of classical T Tauri stars
- Results of the ROTOR-program. II. The long-term photometric variability of weak-line T Tauri stars
- Gaia Photometric Science Alerts
- Gaia 18dvy: a new FUor in the Cygnus OB3 association
- Gaia 19ajj: A Young Star Brightening Due to Enhanced Accretion + Reduced Extinction
- Pre-Main Sequence variables in the VMR-D : identification of T Tauri-like accreting protostars through Spitzer-IRAC variability