X-shooter spectroscopy of young stars with disks

• Published in: Astronomy and astrophysics (Berlin) Vol. 632
• Main Authors: Venuti, L., Stelzer, B., Alcalá, J. M., Manara, C. F., Frasca, A., Jayawardhana, R., Antoniucci, S., Argiroffi, C., Natta, A., Nisini, B., Randich, S., Scholz, A.
• Format: Journal Article
• Language: English
• Published: Heidelberg EDP Sciences 01.12.2019
• Subjects: accretion; Accretion disks; H alpha line; Low mass stars; Luminosity; open clusters and associations: individual: TWA; Parameters; Planet formation; Protoplanetary disks; Sigma Orionis; Signatures; Spectral emission; Star clusters; stars: low-mass; stars: pre-main sequence; Stellar age; Stellar evolution; techniques: spectroscopic

Context. Measurements of the fraction of disk-bearing stars in clusters as a function of age indicate protoplanetary disk lifetimes ≲10 Myr. However, our knowledge of the time evolution of mass accretion in young stars over the disk lifespans is subject to many uncertainties, especially at the lowes...