Shadows Cast by a Warp in the HD 142527 Protoplanetary Disk
Author
dc.contributor.author
Marino Estay, Sebastián
Author
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Pérez, Sebastián
Author
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Casassus Montero, Simón
Admission date
dc.date.accessioned
2015-06-16T19:32:50Z
Available date
dc.date.available
2015-06-16T19:32:50Z
Publication date
dc.date.issued
2015-01-10
Cita de ítem
dc.identifier.citation
The Astrophysical Journal Letters, 798:L44 (4pp), 2015 January 10
en_US
Identifier
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doi:10.1088/2041-8205/798/2/L44
Identifier
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https://repositorio.uchile.cl/handle/2250/131143
General note
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Artículo de publicación ISI
en_US
Abstract
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Detailed observations of gaps in protoplanetary disks have revealed structures that drive current research on
circumstellar disks. One such feature is the two intensity nulls seen along the outer disk of the HD 142527 system,
which are particularly well traced in polarized differential imaging. Here we propose that these are shadows cast
by the inner disk. The inner and outer disk are thick, in terms of the unit-opacity surface in the H band, so that the
shape and orientation of the shadows inform on the three-dimensional structure of the system. Radiative transfer
predictions on a parametric disk model allow us to conclude that the relative inclination between the inner and
outer disks is 70◦ ± 5◦. This finding taps the potential of high-contrast imaging of circumstellar disks, and bears
consequences on the gas dynamics of gapped disks, as well as on the physical conditions in the shadowed regions.