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Far-Ultraviolet H2 Emission from Circumstellar Disks
Laura Ingleby, Nuria Calvet, Edwin Bergin +15
We analyze the far-ultraviolet (FUV) spectra of 33 classical T Tauri stars (CTTS), including 20 new spectra obtained with the Advanced Camera for Surveys Solar Blind Channel (ACS/S…
Evidence for Disk Photoevaporation Driven by the Central Star
Ilaria Pascucci, Michael Sterzik
The lifetime of isolated protoplanetary disks is thought to be set by the combination of viscous accretion and photoevaporation driven by stellar high-energy photons. Observational…
Mid-infrared interferometry of massive young stellar objects. I. VLTI and Subaru observations of the enigmatic object M8E-IR
H. Linz, Th. Henning, M. Feldt +10
[abridged] Our knowledge of the inner structure of embedded massive young stellar objects is still quite limited. We attempt here to overcome the spatial resolution limitations of…
The discovery of new warm debris disks around F-type stars
A. Moór, D. Apai, I. Pascucci +6
We report the discovery of four rare debris disks with warm excesses around F-stars, significantly increasing the number of such systems known in the solar neighborhood. Three of t…
Anachronistic Grain Growth and Global Structure of the Protoplanetary Disk Associated with the Mature Classical T Tauri Star, PDS 66
Stephanie R. Cortes, Michael R. Meyer, John M. Carpenter +4
We present ATCA interferometric observations of the old (13 Myr), nearby (86pc) classical T Tauri star, PDS 66. Unresolved 3 and 12 mm continuum emission is detected towards PDS 66…
Bridging the Gap Between Stars and Planets: The Formation and Early Evolution of Brown Dwarfs
Subhanjoy Mohanty, Adam Burgasser, Gilles Chabrier +17
This White Paper, submitted to the National Academy of Sciences' Astro2010 Decadal Review Committee, focuses on 2 central themes in the study of young brown dwarfs -- their formati…