A DWARF TRANSITIONAL PROTOPLANETARY DISK AROUND XZ TAU B
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 h...
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| Veröffentlicht in: | Astrophysical journal. Letters 2016-07, Vol.825 (1), p.L10-L10 |
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| creator | Osorio, Mayra Macías, Enrique Anglada, Guillem Carrasco-González, Carlos Galván-Madrid, Roberto Zapata, Luis Calvet, Nuria Gómez, José F. Nagel, Erick Rodríguez, Luis F. Torrelles, José M. Zhu, Zhaohuan |
| description | 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. |
| doi_str_mv | 10.3847/2041-8205/825/1/L10 |
| format | Article |
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| subjects | Arrays ASTROPHYSICS, COSMOLOGY AND ASTRONOMY DUSTS DWARF STARS EMISSION EVOLUTION Holes INTERACTIONS MASS MONITORS Planet formation planet-disk interactions PLANETS protoplanetary disks PROTOPLANETS Radio telescopes SIMULATION STARS stars: formation stars: individual (XZ Tau B) stars: pre-main sequence |
| title | A DWARF TRANSITIONAL PROTOPLANETARY DISK AROUND XZ TAU B |
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