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The ALMA Early Science View of FUor/EXor objects. II. The Very Wide Outflow Driven by HBC 494
D. Ruíz-Rodríguez, L. A. Cieza, J. P. Williams +10
We present Atacama Large Millimeter/sub-millimeter Array (ALMA) Cycle-2 observations of the HBC 494 molecular outflow and envelope. HBC 494 is an FU Ori-like object embedded in the…
The ALMA Early Science view of FUor/EXor objects. I. Through the looking-glass of V2775 Ori
Alice Zurlo, Lucas A. Cieza, Jonathan P. Williams +11
As part of an ALMA survey to study the origin of episodic accretion in young eruptive variables, we have observed the circumstellar environment of the star V2775 Ori. This object i…
BP Piscium: its flaring disk imaged with SPHERE/ZIMPOL
J. de Boer, J. H. Girard, H. Canovas +9
Whether BP Piscium (BP Psc) is either a pre-main sequence T Tauri star at d ~ 80 pc, or a post-main sequence G giant at d ~ 300 pc is still not clear. As a first-ascent giant, it i…
A cavity and further radial substructures in the disk around HD~97048
G. van der Plas, C. M. Wright, F. Ménard +9
Context: Gaps, cavities and rings in circumstellar disks are signposts of disk evolution and planet-disk interactions. We follow the recent suggestion that Herbig Ae/Be disks with…
Imaging the water-snow line during a protostellar outburst
Lucas A. Cieza, Simon Casassus, John Tobin +13
A snow-line is the region of a protoplanetary disk at which a major volatile, such as water or carbon monoxide, reaches its condensation temperature. Snow-lines play a crucial role…
A ring-like concentration of mm-sized particles in Sz 91
H. Canovas, C. Caceres, M. R. Schreiber +4
Models of planet formation and disc evolution predict a variety of observables in the dust structure of protoplanetary discs. Here we present Atacama Large Millimeter/submillimeter…
Azimuthal asymmetries in the debris disk around HD61005
J. Olofsson, M. Samland, H. Avenhaus +30
Debris disks offer valuable insights into the latest stages of circumstellar disk evolution, and can possibly help us to trace the outcomes of planetary formation processes. In the…