Abstract

Contributed Talk - Splinter StarFormation

Reviewing recent observations of accretion bursts in HMYSOs

Jochen Eislöffel
Thüringer Landessternwarte

A wealth of new theoretical and observational evidence now supports the idea that episodic accretion is a fundamental and common phenomenon across mass and time in star formation. In particular, the most recent discovery and follow-up of four accretion bursts from high-mass young stellar objects (HMYSOs) (S255IR NIRS3, NGC 6334I-MM1, G358.93-0.03 MM1 and G323.46-0.08) have been key to link low- and high-mass star-formation mechanisms to the common ground of disk-mediated accretion. In this talk I will review the main observables of such events and compare their physical properties (e.g. in terms of accreted mass, released energy, and length of the burst) with respect to their low-mass counterparts. Besides the classical direct outburst tracers, such as multi-wavelength light-curves and spectroscopy, our data also reveal that other important tracers, such as CH3OH and H2O maser flares or radio jet bursts, can provide fundamental information on these events.