Sub-arcsecond imaging of the AB Aur molecular disk and envelope at millimeter wavelengths: a non-Keplerian disk
GUILLOTEAU, S.
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
DUTREY, Anne
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
GUILLOTEAU, S.
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
DUTREY, Anne
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
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Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Language
en
Communication dans un congrès
This item was published in
Astrochemistry: Recent Successes and Current Challenges, Proceedings of the 231st Symposium of the International Astronomical Union held in Pacific Grove, California, USA, August 29-September 2, 2005. Poster sessions., p.279, Astrochemistry: Recent Successes and Current Challenges, Proceedings of the 231st Symposium of the International Astronomical Union held in Pacific Grove, California, USA, August 29-September 2, 2005. Poster sessions., p.279, Astrochemistry: Recent Successes and Current Challenges, 2005. 2005, vol. 235, p. 279P
English Abstract
We present sub-arcsecond imaging of AB Auriga obtained with the IRAM Plateau de Bure Interferometer in the isotopologues of CO and in continuum at 1.3 and 3 mm. These images reveal that the circumstellar environment of AB ...Read more >
We present sub-arcsecond imaging of AB Auriga obtained with the IRAM Plateau de Bure Interferometer in the isotopologues of CO and in continuum at 1.3 and 3 mm. These images reveal that the circumstellar environment of AB Aur is widely different from the protoplanetary disks surrounding T Tauri stars like DM Tau or LkCa 15 or other Herbig Ae stars like MWC 480. The continuum and the isotopes lines emission show a "spiral-like" brightness enhancement, that prevent an accurate determination of the system inclination. Nevertheless, a robust result of our analysis is that the disk is not in Keplerian rotation. These characteristics (spiral feature and non-Keplerian rotation) could be related to an early phase of the stellar formation, or to a perturbation of yet unknown origin (such as a low mass companion).Read less <
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