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Circumbinary and circumstellar discs around the eccentric binary IRAS 04158+2805 -- a testbed for binary-disc interaction
Enrico Ragusa, Daniele Fasano, Claudia Toci +10
IRAS~04158+2805 has long been thought to be a very low mass T-Tauri star (VLMS) surrounded by a nearly edge-on, extremely large disc. Recent observations revealed that this source…
High resolution ALMA and HST images of q Eri: an asymmetric debris disc with an eccentric Jupiter
J. B. Lovell, S. Marino, M. C. Wyatt +10
We present \textit{ALMA} 1.3 mm and 0.86 mm observations of the nearby (17.34 pc) F9V star q1 Eri (HD 10647, HR 506). This system, with age Gyr, hosts a au ra…
A detailed characterization of HR 8799's debris disk with ALMA in Band 7
Virginie Faramaz, Sebastian Marino, Mark Booth +8
The exoplanetary system of HR 8799 is one of the rare systems in which multiple planets have been directly imaged. Its architecture is strikingly similar to that of the Solar Syste…
Discovery of an Edge-on Circumstellar Debris Disk Around BD+45598: a Newly Identifed Member of the Pictoris Moving Group
Sasha Hinkley, Elisabeth C. Matthews, Charlène Lefevre +24
We report the discovery of a circumstellar debris disk viewed nearly edge-on and associated with the young, K1 star BD+45598 using high-contrast imaging at 2.2m obtain…
The HOSTS survey: evidence for an extended dust disk and constraints on the presence of giant planets in the Habitable Zone of Leo
D. Defrère, P. M. Hinz, G. M. Kennedy +38
The young (50-400 Myr) A3V star Leo is a primary target to study the formation history and evolution of extrasolar planetary systems as one of the few stars with known hot ($\s…
The Anatomy of an Unusual Edge-on Protoplanetary Disk. II. Gas temperature and a warm outer region
Christian Flores, Gaspard Duchene, Schuyler Wolff +9
We present high-resolution CO and CO 2-1 ALMA observations, as well as optical and near-infrared spectroscopy, of the highly-inclined protoplanetary disk around SSTC2…