{ "id": "2003.09511", "version": "v1", "published": "2020-03-20T21:53:21.000Z", "updated": "2020-03-20T21:53:21.000Z", "title": "Accretion in low-mass members of the Orion Nebula Cluster with young transition disks", "authors": [ "R. M. G. de Albuquerque", "J. F. Gameiro", "S. H. P. Alencar", "J. J. G. Lima", "C. Sauty", "C. Melo" ], "comment": "12 pages, 6 figures (17 pages, 11 figures if appendix included). Accepted by Astronomy and Astrophysics on 24/02/2020", "categories": [ "astro-ph.SR", "astro-ph.EP", "astro-ph.GA" ], "abstract": "Although the Orion Nebula Cluster is one of the most studied clusters in the solar neighborhood, the evolution of the very low-mass members ($M_* < 0.25 \\, M_\\odot$) has not been fully addressed due to their faintness. 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. 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. 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.", "revisions": [ { "version": "v1", "updated": "2020-03-20T21:53:21.000Z" } ], "analyses": { "keywords": [ "orion nebula cluster", "young transition disks", "low-mass members", "young stellar objects", "broadband vlt/x-shooter spectra" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }