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27 April 2024

» arxiv » 1606.3118

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A Dwarf Protoplanetary Disk around XZ Tau B
Mayra Osorio ; Enrique Macias ; Guillem Anglada ; Carlos Carrasco-Gonzalez ; Roberto Galvan-Madrid ; Luis Zapata ; Nuria Calvet ; Jose F. Gomez ; Erick Nagel ; Luis F. Rodriguez ; Jose M. Torrelles ; Zhaohuan Zhu ;
Date:	9 Jun 2016
Abstract:	We report the discovery of a dwarf protoplanetary disk around the star XZ Tau B that shows all the features of a classical transitional disk but on a much smaller scale. The disk has been imaged with the Atacama Large Millimeter/Submillimeter Array (ALMA), revealing that its dust emission has a quite small radius of ~ 3.4 au and presents a central cavity of ~ 1.3 au in radius that we attribute to clearing by a compact system of orbiting (proto)planets. Given the very small radii involved, evolution is expected to be much faster in this disk (observable changes in a few months) than in classical disks (observable changes requiring decades) and easy to monitor with observations in the near future. From our modeling we estimate that the mass of the disk is large enough to form a compact planetary system.
Source:	arXiv, 1606.3118
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