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A gas-rich disk around DX Cha

Published online by Cambridge University Press:  06 January 2014

A. S. Hales ,
I. De Gregorio-Monsalvo ,
B. Montesinos ,
S. Casassus ,
W. R. F. Dent ,
C. Eiroa ,
A. M. Hughes ,
G. Garay ,
D. Mardones  and
F. Ménard
...Show all authors
A. S. Hales
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, Virginia, 22903-2475, United States
I. De Gregorio-Monsalvo
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748, Garching bei Mnchen, Germany
B. Montesinos
Affiliation:
Department of Astrophysics, Centre for Astrobiology (CAB, CSIC-INTA), ESAC Campus, P.O. Box 78, 28691 Villanueva de la Cañada, Madrid, Spain
S. Casassus
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
W. R. F. Dent
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
C. Eiroa
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
A. M. Hughes
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
G. Garay
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
D. Mardones
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
F. Ménard
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
A. Palau
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
S. Pérez
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
N. Phillips
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
J. M. Torrelles
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
D. Wilner
Affiliation:
Atacama Large Millimeter/Submillimeter Array, Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura 763-0355, Santiago - Chile email: ahales@alma.cl
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Abstract

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DX Cha (HD 104237) is a southern, optically bright Herbig Ae star with an infrared excess, that is part of a small stellar group younger than 5 Myr. We used the APEX and ASTE submillimeter telescopes in Chile to search for continuum and gas emission around this system. Using LABOCA on APEX we detect strong continuum emission around HD104237-A and system component HD104237-E. Our ASTE spectrum detects a double-peaked 12CO(3-2) line profile towards the system, typical of a rotating disk. The new data are used as constraints with MCFOST to produce a disk model that fits the entire SED as well as the observed CO line profile.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S299: Exploring the Formation and Evolution of Planetary Systems , June 2013 , pp. 161 - 162
Copyright
Copyright © International Astronomical Union 2013 

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