Accretion in low-mass members of the Orion Nebula Cluster with young transition disks - Archive ouverte HAL Access content directly
Journal Articles Astronomy and Astrophysics - A&A Year : 2020

Accretion in low-mass members of the Orion Nebula Cluster with young transition disks

Abstract

Context. Although the Orion Nebula Cluster is one of the most studied clusters in the solar neighborhood, the evolution of the very low-mass members (M* < 0.25 M⊙) has not been fully addressed due to their faintness.Aims. Our goal is to verify if some young and very low-mass objects in the Orion Nebula Cluster show evidence of ongoing accretion using broadband VLT/X-shooter spectra.Methods. For each target, we determined the corresponding stellar parameters, veiling, observed Balmer jump, and accretion rates. Additionally, we searched for the existence of circumstellar disks through available on-line photometry.Results. We detected accretion activity in three young stellar objects in the Orion Nebula Cluster, two of them being in the very low-mass range. We also detected the presence of young transition disks with ages between 1 and 3.5 Myr.Key words: stars: low-mass / stars: pre-main sequence / open clusters and associations: individual: Orion Nebula Cluster
Fichier principal
Vignette du fichier
aa36694-19.pdf (3.37 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-02613203 , version 1 (10-05-2023)

Identifiers

Cite

R.M.G. de Albuquerque, J.F. Gameiro, S.H.P. Alencar, J.J.G. Lima, C. Sauty, et al.. Accretion in low-mass members of the Orion Nebula Cluster with young transition disks. Astronomy and Astrophysics - A&A, 2020, 636, pp.A86. ⟨10.1051/0004-6361/201936694⟩. ⟨hal-02613203⟩
62 View
9 Download

Altmetric

Share

Gmail Facebook X LinkedIn More