Herschel survey and modelling of externally-illuminated photoevaporating protoplanetary disks.
Sign Up to like & getrecommendations! Published in 2017 at "Astronomy and astrophysics"
DOI: 10.1051/0004-6361/201629404
Abstract: Context Protoplanetary disks undergo substantial mass-loss by photoevaporation, a mechanism which is crucial to their dynamical evolution. However, the processes regulating the gas energetics have not been well constrained by observations so far. Aims We… read more here.
Keywords: herschel survey; photoevaporation; illuminated photoevaporating; externally illuminated ... See more keywords
Interferometric study on the temporal variability of the brightness distributions of protoplanetary disks
Sign Up to like & getrecommendations! Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202038013
Abstract: Multi-epoch observations have revealed the variability of pre-main sequence stars and/or their environment. Moreover, structures in orbital motion around the central star, resulting from planet-disk interaction, are predicted to cause temporal variations in the brightness… read more here.
Keywords: distributions protoplanetary; brightness distributions; variability; protoplanetary disks ... See more keywords
Self-scattering on large, porous grains in protoplanetary disks with dust settling
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202040033
Abstract: Observations of protoplanetary disks (PPDs) at sub-mm wavelengths suggest that polarisation is caused by scattering of thermal radiation. Most of the dust models that are used to explain these observations have major drawbacks: They either… read more here.
Keywords: dust settling; self scattering; dust; porous dust ... See more keywords
Streaming instability in a global patch simulation of protoplanetary disks
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202040104
Abstract: In the recent years, sub/mm observations of protoplanetary disks have discovered an incredible diversity of substructures in the dust emission. An important result was the finding that dust grains of mm size are embedded in… read more here.
Keywords: streaming instability; gas; model; dust ... See more keywords