Accretion in low-mass members of the Orion Nebula Cluster with young transition disks. (arXiv:2003.09511v1 [astro-ph.SR])
<a href="http://arxiv.org/find/astro-ph/1/au:+Albuquerque_R/0/1/0/all/0/1">R. M. G. de Albuquerque</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gameiro_J/0/1/0/all/0/1">J. F. Gameiro</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Alencar_S/0/1/0/all/0/1">S. H. P. Alencar</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lima_J/0/1/0/all/0/1">J. J. G. Lima</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sauty_C/0/1/0/all/0/1">C. Sauty</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Melo_C/0/1/0/all/0/1">C. Melo</a>

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.

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.

http://arxiv.org/icons/sfx.gif