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SPHERE dynamical and spectroscopic characterization of HD142527B
R. Claudi, A. -L. Maire, D. Mesa +50
We detect the accreting low-mass companion HD142527B at a separation of 73 mas (11.4 au) from the star. No other companions with mass greater than 10 MJ are visible in the field of…
Spectral and orbital characterisation of the directly imaged giant planet HIP 65426 b
A. C. Cheetham, M. Samland, S. S. Brems +38
HIP 65426 b is a recently discovered exoplanet imaged during the course of the SPHERE-SHINE survey. Here we present new and observations of the planet from the NACO instr…
The Ophiuchus DIsc Survey Employing ALMA (ODISEA) - I : project description and continuum images at 28 au resolution
Lucas A. Cieza, Dary Ruíz-Rodríguez, Antonio Hales +20
We introduce the Ophiuchus DIsc Survey Employing ALMA (ODISEA), a project aiming to study the entire population of Spitzer-selected protoplanetary discs in the Ophiuchus Molecular…
Is there really a debris disc around ?
V. Faramaz, G. Bryden, K. R. Stapelfeldt +10
The presence of a debris disc around the Gyr-old solar-type star was suggested by the infrared excess detection. Follow-up observations…
Infrared Variability of Two Dusty White Dwarfs
Siyi Xu, Kate Y. L. Su, Laura Rogers +11
The most heavily polluted white dwarfs often show excess infrared radiation from circumstellar dust disks, which are modeled as a result of tidal disruption of extrasolar minor pla…
The Planet Formation Imager
John D. Monnier, Stefan Kraus, Michael J. Ireland +36
The Planet Formation Imager (PFI, www.planetformationimager.org) is a next-generation infrared interferometer array with the primary goal of imaging the active phases of planet for…
Planet Formation Imager: Project Update
John D. Monnier, Michael J. Ireland, Stefan Kraus +2
The Planet Formation Imager (PFI) is a near- and mid-infrared interferometer project with the driving science goal of imaging directly the key stages of planet formation, including…
NPF: mirror development in Chile
Sebastián Zúñiga-Fernández, Amelia Bayo, Johan Olofsson +14
In the era of high-angular resolution astronomical instrumentation, where long and very long baseline interferometers (constituted by many, 20 or more, telescopes) are expec…
Discovery of a planetary-mass companion within the gap of the transition disk around PDS 70
M. Keppler, M. Benisty, A. Müller +123
Young circumstellar disks are of prime interest to understand the physical and chemical conditions under which planet formation takes place. Only very few detections of planet cand…
Debris disks with multiple absorption features in metallic lines: circumstellar or interstellar origin?
D. Iglesias, A. Bayo, J. Olofsson +8
Debris disks are second generation dusty disks thought to be devoid of gas. However, this idea has been challenged in the last years by gas detections in some systems. We compiled…
Sub-millimeter non-contaminated detection of the disk around TWA\,7 by ALMA
A. Bayo, J. Olofsson, L. Matra +9
Debris disks can be seen as the left-overs of giant planet formation and the possible nurseries of rocky planets. While M-type stars out-number more massive stars we know very litt…
First direct detection of a polarized companion outside of a resolved circumbinary disk around CS Cha
C. Ginski, M. Benisty, R. G. van Holstein +18
In the present study we aim to investigate the circumstellar environment of the spectroscopic binary T Tauri star CS Cha. From unresolved mid- to far-infrared photometry it is pred…
New disk discovered with VLT/SPHERE around the M star GSC 07396-00759
E. Sissa, J. Olofsson, A. Vigan +30
Debris disks are usually detected through the infrared excess over the photospheric level of their host star. The most favorable stars for disk detection are those with spectral ty…
Resolving faint structures in the debris disk around TWA7
J. Olofsson, R. G. van Holstein, A. Boccaletti +51
Debris disks are the intrinsic by-products of the star and planet formation processes. Most likely due to instrumental limitations and their natural faintness, little is known abou…
VLT/SPHERE astrometric confirmation and orbital analysis of the brown dwarf companion HR 2562 B
A. -L. Maire, L. Rodet, C. Lazzoni +46
Context. A low-mass brown dwarf has been recently imaged around HR 2562 (HD 50571), a star hosting a debris disk resolved in the far infrared. Interestingly, the companion location…
Observations of fast-moving features in the debris disk of AU Mic on a three-year timescale: Confirmation and new discoveries
A. Boccaletti, E. Sezestre, A. -M. Lagrange +60
The nearby and young M star AU Mic is surrounded by a debris disk in which we previously identified a series of large-scale arch-like structures that have never been seen before in…
Discovery of a brown dwarf companion to the star HIP 64892
A. Cheetham, M. Bonnefoy, S. Desidera +89
We report the discovery of a bright, brown dwarf companion to the star HIP 64892, imaged with VLT/SPHERE during the SHINE exoplanet survey. The host is a B9.5V member of the Lower-…
The co-existence of hot and cold gas in debris discs
I. Rebollido, C. Eiroa, B. Montesinos +19
Debris discs have often been described as gas-poor discs as the gas-to-dust ratio is expected to be considerably lower than in primordial,protoplanetary discs. However, recent obse…
Investigating the young Solar System analog HD95086
G. Chauvin, R. Gratton, M. Bonnefoy +57
HD95086 (A8V, 17Myr) hosts a rare planetary system for which a multi-belt debris disk and a giant planet of 4-5MJup have been directly imaged. Our study aims to characterize the ph…