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Observational Constraints on the Stellar Radiation Field Impinging on Transitional Disk Atmospheres
Judit Szulágyi, Ilaria Pascucci, Péter Ábrahám +3
Mid-infrared atomic and ionic line ratios measured in spectra of pre-main sequence stars are sensitive indicators of the hardness of the radiation field impinging on the disk surfa…
Disks, accretion and outflows of brown dwarfs
V. Joergens, G. Herczeg, Y. Liu +13
Characterization of the properties of young brown dwarfs are important to constraining the formation of objects at the extreme low-mass end of the IMF. While young brown dwarfs sha…
A Herschel Survey of Cold Dust in Disks Around Brown Dwarfs and Low-Mass Stars
Paul M. Harvey, Thomas Henning, Yao Liu +6
We report the complete photometric results from our Herschel study which is the first comprehensive program to search for far-infrared emission from cold dust around young brown dw…
An HST Imaging Survey of Low-Mass Stars in the Chamaeleon I Star Forming region
M. Robberto, L. Spina, N. Da Rio +7
We present new HST/WFPC2 observations of 20 fields centered around T Tauri stars in the Chamaeleon I star forming region. Images have been obtained in the F631N ([OI]6300A), F656N…
Free-free Emission and Radio Recombination Lines from Photoevaporating Disks
I. Pascucci, U. Gorti, D. Hollenbach
Recent infrared observations have demonstrated that photoevaporation driven by high-energy photons from the central star contributes to the dispersal of protoplanetary disks. Here,…
Deserts and pile-ups in the distribution of exoplanets due to photoevaporative disc clearing
R. D. Alexander, I. Pascucci
We present models of giant planet migration in evolving protoplanetary discs. We show that disc clearing by EUV photoevaporation can have a strong effect on the distribution of gia…