A search for southern ultracool dwarfs in young moving groups
Author | dc.contributor.author | Clarke, J. R. A. | |
Author | dc.contributor.author | Pinfield, D. J. | es_CL |
Author | dc.contributor.author | Gálvez Ortiz, M. C. | es_CL |
Author | dc.contributor.author | Jenkins, James Stewart | es_CL |
Author | dc.contributor.author | Burningham, B. | es_CL |
Author | dc.contributor.author | Deacon, N. R. | es_CL |
Author | dc.contributor.author | Jones, Hugh | es_CL |
Author | dc.contributor.author | Pokorny, R. S. | es_CL |
Author | dc.contributor.author | Barnes, J. R. | es_CL |
Author | dc.contributor.author | Day-Jones, A. C. | es_CL |
Admission date | dc.date.accessioned | 2010-07-13T19:33:40Z | |
Available date | dc.date.available | 2010-07-13T19:33:40Z | |
Publication date | dc.date.issued | 2010 | |
Cita de ítem | dc.identifier.citation | Mon. Not. R. Astron. Soc. 402, 575–588 (2010) | en_US |
Identifier | dc.identifier.other | doi:10.1111/j.1365-2966.2009.15910.x | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/125402 | |
Abstract | dc.description.abstract | We associate 132 low-mass ultracool dwarfs in the southern hemisphere as candidate members of five moving groups (MGs) using photometric and astrometric selection techniques. Of these objects, we present high-resolution spectroscopy for seven candidates and combine these with previous measurements from the literature to determine spectral types and radial velocities. We thus constrain distance and space motion spectroscopically, allowing the kinematic membership of the MGs to be assessed. Possible membership of MGs has allowed ages and metallicities to be constrained for these objects and evolutionary models have been used to estimate their mass. We estimate that up to ∼75 of our candidate MG members should be genuine, and discuss future work that will confirm and exploit this major new sample. | en_US |
Lenguage | dc.language.iso | en | en_US |
Keywords | dc.subject | stars: kinematics | en_US |
Título | dc.title | A search for southern ultracool dwarfs in young moving groups | en_US |
Document type | dc.type | Artículo de revista |
Files in this item
This item appears in the following Collection(s)
-
Artículos de revistas
Artículos de revistas