Planet Formation in the GG Tau A System?

Anne Dutrey 1
1 AMOR 2015
LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac], UB - Université de Bordeaux, INSU - CNRS - Institut national des sciences de l'Univers , CNRS - Centre National de la Recherche Scientifique
Abstract : Located at 140 pc, the environment of the young hierarchical TTauri star system GG Tau A remains a unique laboratory to study tidal interactions and planet formation. We report new ALMA observations of the triple star GG Tau A performed at 0.5mm and in CO J=6-5 at resolution of 0.3 arcsecond. These new images resolve out the massive and narrow dust ring and reveal that a large amount of CO gas is streaming inside the cavity or the gravitationally unstable area. The dust and gas disk surrounding GG Tau Aa which is separated by 35 AU from the binary GG Tau Ab, would not survive without regular replenishment form these streamers.
Type de document :
Communication dans un congrès
2015ASPC.499.261D - Revolution in Astronomy with ALMA: The Third Year. Proceedings of a Conference held at the Tokyo International Forum, Tokyo, Japan 8-11 December 2014. Edited by Daisuke Iono, Ken-ichi Tatematsu, Alwyn Wootten, and Leonardo Testi. ASP Conference Series Vol. 499. San Francisco: Astronomical Society of the Pacific, 2015, p.261 2015, Dec 2014, San Francisco, United States. 499, pp.261, 2015
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https://hal.archives-ouvertes.fr/hal-01274901
Contributeur : Marie-Paule Pomies <>
Soumis le : mardi 16 février 2016 - 13:40:44
Dernière modification le : mercredi 17 février 2016 - 01:02:49

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Anne Dutrey. Planet Formation in the GG Tau A System?. 2015ASPC.499.261D - Revolution in Astronomy with ALMA: The Third Year. Proceedings of a Conference held at the Tokyo International Forum, Tokyo, Japan 8-11 December 2014. Edited by Daisuke Iono, Ken-ichi Tatematsu, Alwyn Wootten, and Leonardo Testi. ASP Conference Series Vol. 499. San Francisco: Astronomical Society of the Pacific, 2015, p.261 2015, Dec 2014, San Francisco, United States. 499, pp.261, 2015. <hal-01274901>

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