PERICAUD, J.; DI FOLCO, E.; DUTREY, Anne; AUGEREAU, J.-C.,; PIÉTU, V.,; GUILLOTEAU, S.

doi:10.1017/S1743921315006432

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PERICAUD, J.
AMOR 2016

DI FOLCO, E.
AMOR 2016

DUTREY, Anne
AMOR 2016

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Communication dans un congrès

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2015-05-11, Atlanta. 2016, vol. 314, p. 201 - 202

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Debris disks are usually thought to be gas-poor, the gas being dissipated by accretion or evaporation during the protoplanetary phase. HD141569A is a 5 Myr old star harboring a famous debris disk, with multiple rings and spiral features. I present here the first PdBI maps of the 12CO(2-1), 13CO(2-1) gas and dust emission at 1.3 mm in this disk. The analysis reveals there is still a large amount of (primordial) gas extending out to 250 AU, i.e. inside the rings observed in scattered light. HD141569A is thus a hybrid disk with a huge debris component, where dust has evolved and is produced by collisions, with a large remnant reservoir of gas.< Leer menos

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HD141569A: Disk Dissipation Caught in Action

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Centros de investigación