Spitzer MIPS 24 μm Detection of Photoevaporating Protoplanetary Disks | Zendy

Z. Balog | Zendy; G. H. Rieke | Zendy; K. Y. L. Su | Zendy; James Muzerolle | Zendy; Erick T. Young | Zendy

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Spitzer MIPS 24 μm Detection of Photoevaporating Protoplanetary Disks

Author(s) -

Z. Balog,

G. H. Rieke,

K. Y. L. Su,

James Muzerolle,

Erick T. Young

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/508707

Subject(s) - photoevaporation , physics , astrophysics , stars , brightness , planet , accretion (finance) , protoplanetary disk , brightness temperature , astronomy

We present 24 micron images of three protoplanetary disks beingphotoevaporated around high mass O type stars. These objects have ``cometary''structure where the dust pulled away from the disk by the photoevaporating flowis forced away from the O star by photon pressure on the dust and heating andionization of the gas. Models of the 24 micron and 8 micron brightness profilesagree with this hypothesis. These models show that the mass-loss rate needed tosustain such a configuration is in agreement with or somewhat less than thetheoretical predictions for the photoevaporation process.Comment: 4 pages 4 figures. Accepted for publication in The Astrophysical Journal Letter

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