Please use this identifier to cite or link to this item: http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/990
The first brown dwarf with a disk in chamaeleon II
BERTHA ALICIA PORRAS JUAREZ
Acceso Abierto
Atribución-NoComercial-SinDerivadas
In this letter we characterize the candidates for young stars and brown dwarfs detected in a survey with ISOCAMin the Chamaeleon II dark cloud. Photometric data coming from a wide-field optical imaging survey, combined with IR measurements from the 2MASS catalogue and from the Spitzer satellite, allow us to study the nature of the candidates. Using intermediate-band filters we can provide a first estimate of the temperatures for objects cooler than about 3800 K. On the basis of spectroscopic and photometric data, we confirm that ISO-CHAII 13 is a young substellar object with a mass of about 0.05 Mʘ. It is thus the first object in Cha II whose substellar nature has been spectroscopically confirmed. By having a temperature of about 2880 K and displaying a substantial infrared excess, it joins the list of young brown dwarfs observed to have a surrounding disk.
Astronomy and Astrophysics
2006
Artículo
Inglés
Estudiantes
Investigadores
Público en general
Alcalá, J. M., et al., (2006). The first brown dwarf with a disk in chamaeleon II, Astronomy and Astrophysics, Vol.453(1):L1-L4
ASTRONOMÍA Y ASTROFÍSICA
Versión aceptada
acceptedVersion - Versión aceptada
Appears in Collections:Artículos de Astrofísica

Upload archives