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Blow-off of planetary protoatmospheres and of the protoplanetary nebula
Physics of the Earth and Planetary Interiors, 1982Abstract The mass loss from planetary protoatmospheres is in the order of 10 −2 –10 −4 parts of the planetary mass for the terrestrial planets and about 10 −7 –10 −8 parts for the giant planets. The minimum time intervals needed for the disappearance of the protoplanetary nebula are in the order of 10 6 y in the case of heating by a T-Tauri-like ...
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Molecular lines from protoplanetary nebulae: observations with ALMA
Astrophysics and Space Science, 2007Planetary nebulae (PNe) are formed in a very fast process. In just about 1000 years, the nebula evolves from a spherical and slowly expanding AGB envelope to a PN, with usually axial symmetry and high axial velocities. Molecular lines are known to probe most of the nebular material in young PNe and protoplanetary nebulae (PPNe), and are therefore very ...
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The clearing of protoplanetary disks and of the proto-solar nebula
2010Shogo Tachibana, Ilaria Pascucci
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Chemical and isotopic evolution of the solar nebula and protoplanetary disks
2010Mark H. Thiemens +2 more
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