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Intricate visibility effects from resolved emission of young stellar objects: the case of MWC158 observed with the VLTI
Jacques Kluska, Fabien Malbet, Jean-Philippe Berger +7
In the course of our VLTI young stellar object PIONIER imaging program, we have identified a strong visibility chromatic dependency that appeared in certain sources. This effect, r…
Ring shaped dust accumulation in transition disks
P. Pinilla, M. Benisty, T. Birnstiel
Context.Transition disks are believed to be the final stages of protoplanetary disks, during which a forming planetary system or photoevaporation processes open a gap in the inner…
Revealing the inner circumstellar disk of the T Tauri star S CrA N using the VLTI
J. Vural, A. Kreplin, S. Kraus +7
Aims: We investigate the structure of the circumstellar disk of the T Tauri star S CrA N and test whether the observations agree with the standard picture proposed for Herbig Ae st…
PIONIER: a status report
J. -B. Le Bouquin, J. -P. Berger, G. Zins +33
The visitor instrument PIONIER provides VLTI with improved imaging capabilities and sensitivity. The instrument started routinely delivering scientific data in November 2010, that…
A Likely Close-In Low-Mass Stellar Companion to the Transitional Disk Star HD 142527
Beth Biller, Sylvestre Lacour, Attila Juhász +11
With the uniquely high contrast within 0.1" (Δmag(L') = 5-6.5 magnitudes) available using Sparse Aperture Masking (SAM) with NACO at VLT, we detected asymmetry in the flux from the…