activity
20122022
most citedDiscovery of a planetary-mass companion within the gap of the transition disk around PDS 70

700 citations · 6.8k across the 75 of their papers we have counts for

collaborators

69 papers

astro-ph.EP2022★ 39 cited

Orbital and dynamical analysis of the system around HR 8799. New astrometric epochs from VLT/SPHERE and LBT/LUCI

A. Zurlo, K. Gozdziewski, C. Lazzoni D. Mesa +44

HR\,8799 is a young planetary system composed of 4 planets and a double debris belt. Being the first multi-planetary system discovered with the direct imaging technique, it has bee…

astro-ph.GA2021★ 1 cited

A SPHERE survey of self-shadowed planet-forming disks

A. Garufi, C. Dominik, C. Ginski +20

To date, nearly two hundred planet-forming disks have been imaged with high resolution. Our propensity to study bright and extended objects is however biasing our view of the disk…

astro-ph.EP2021★ 36 cited

HD142527: Quantitative disk polarimetry with SPHERE

S. Hunziker, H. M. Schmid, J. Ma +17

We present high-precision photometry and polarimetry for the protoplanetary disk around HD142527, with a focus on determining the light scattering parameters of the dust. We re-red…

astro-ph.SR2021★ 20 cited

New binaries from the SHINE survey

M. Bonavita, R. Gratton, S. Desidera +67

We present the multiple stellar systems observed within the SpHere INfrared survey for Exoplanet (SHINE). SHINE searched for substellar companions to young stars using high contras…

astro-ph.SR2020★ 9 cited

Investigating three Sirius-like systems with SPHERE

R. Gratton, V. D'Orazi, T. A. Pacheco +61

Sirius-like systems are wide binaries composed of a white dwarf (WD) and a companion of a spectral type earlier than M0. The WD progenitor evolves in isolation, but its wind during…

astro-ph.EP2020★ 29 cited

A single-armed spiral in the protoplanetary disk around HD34282 ?

J. de Boer, C. Ginski, G. Chauvin +17

During the evolution of protoplanetary disks into planetary systems we expect to detect signatures that trace mechanisms such as planet-disk interaction. Protoplanetary disks displ…

astro-ph.EP2020★ 2 cited

On moving shadows and pressure bumps in HD 169142

Gesa H. -M. Bertrang, Mario Flock, Miriam Keppler +5

The search for young planets had its first breakthrough with the detection of the accreting planet PDS70b. In this study, we aim to broaden our understanding towards the formation…

astro-ph.SR2020★ 109 cited

A triple star system with a misaligned and warped circumstellar disk shaped by disk tearing

Stefan Kraus, Alexander Kreplin, Alison K. Young +29

Young stars are surrounded by a circumstellar disk of gas and dust, within which planet formation can occur. Gravitational forces in multiple star systems can disrupt the disk. The…

astro-ph.EP2020★ 40 cited

ISPY -- NACO Imaging Survey for Planets around Young stars: Survey description and results from the first 2.5 years of observations

R. Launhardt, Th. Henning, A. Quirrenbach +21

The occurrence rate of long-period giant planets around young stars is highly uncertain since it is not only governed by the protoplanetary disc structure and planet formation proc…

astro-ph.EP2019★ 21 cited

RefPlanets: Search for reflected light from extra-solar planets with SPHERE/ZIMPOL

S. Hunziker, H. M. Schmid, D. Mouillet +55

RefPlanets is a guaranteed time observation (GTO) programme that uses the Zurich IMaging POLarimeter (ZIMPOL) of SPHERE/VLT for a blind search for exoplanets in wavelengths from 60…

astro-ph.EP2019★ 83 cited

Disks Around T Tauri Stars with SPHERE (DARTTS-S) II: Twenty-one new polarimetric images of young stellar disks

Antonio Garufi, Henning Avenhaus, Sebastian Perez +8

Near-IR polarimetric images of protoplanetary disks enable us to characterize substructures that might be due to the interaction with (forming) planets. The available census is str…

astro-ph.EP2019★ 10 cited

ISPY -- NaCo Imaging Survey for Planets around Young stars. Discovery of an M dwarf in the gap between HD 193571 and its debris ring

Arianna Musso Barcucci, Ralf Launhardt, Grant M. Kennedy +19

Context. The interaction between low-mass companions and the debris discs they reside in is still not fully understood. A debris disc can evolve due to self-stirring, a process in…

astro-ph.EP2019★ 68 cited

Long Baseline Observations of the HD100546 Protoplanetary Disk with ALMA

Sebastián Pérez, Simon Casassus, Antonio Hales +9

Using the Atacama Large Millimeter/submillimeter Array (ALMA), we observed the young Herbig star HD 100546, host to a prominent disk with a deep, wide gap in the dust. The high-res…

astro-ph.EP2019★ 57 cited

Optical polarized phase function of the HR\,4796A dust ring

J. Milli, N. Engler, H. M. Schmid +24

The scattering properties of the dust originating from debris discs are still poorly known. The analysis of scattered light is however a powerful remote-sensing tool to understand…

astro-ph.EP2019★ 16 cited

Two cold belts in the debris disk around the G-type star NZ Lup

A. Boccaletti, P. Thébault, N. Pawellek +36

Planetary systems hold the imprint of the formation and of the evolution of planets especially at young ages, and in particular at the stage when the gas has dissipated leaving mos…

astro-ph.EP2019★ 44 cited

Hint of curvature in the orbital motion of the exoplanet 51 Eridani b using 3 years of VLT/SPHERE monitoring

A. -L. Maire, L. Rodet, F. Cantalloube +49

Context. The 51 Eridani system harbors a complex architecture with its primary star forming a hierarchical system with the binary GJ 3305AB at a projected separation of 2000 au, a…

astro-ph.SR2019★ 152 cited

The newborn planet population emerging from ring-like structures in discs

G. Lodato, G. Dipierro, E. Ragusa +23

ALMA has observed a plethora of ring-like structures in planet forming discs at distances of 10-100 au from their host star. Although several mechanisms have been invoked to explai…

astro-ph.EP2019★ 31 cited

Investigating the presence of two belts in the HD 15115 system

N. Engler, A. Boccaletti, H. M. Schmid +16

We present new observations of the edge-on debris disk around HD 15115 (F star at 48.2 pc) obtained in the near-IR. We search for observational evidence for a second inner planetes…

astro-ph.SR2018★ 49 cited

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…

astro-ph.EP2018★ 52 cited

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…

astro-ph.EP2018★ 83 cited

A search for accreting young companions embedded in circumstellar disks: High-contrast H imaging with VLT/SPHERE

G. Cugno, S. P. Quanz, S. Hunziker +37

Aims: We want to detect and quantify observables related to accretion processes occurring locally in circumstellar disks, which could be attributed to young forming planets. We foc…

astro-ph.SR2018★ 16 cited

Mapping of shadows cast on a protoplanetary disk by a close binary system

V. D'Orazi, R. Gratton, S. Desidera +47

For a comprehensive understanding of planetary formation and evolution, we need to investigate the environment in which planets form: circumstellar disks. Here we present high-cont…

astro-ph.EP2018★ 72 cited

The Ring Structure in the MWC 480 Disk Revealed by ALMA

Yao Liu, Giovanni Dipierro, Enrico Ragusa +20

Gap-like structures in protoplanetary disks are likely related to planet formation processes. In this paper, we present and analyze high resolution (0.17*0.11 arcsec) 1.3 mm ALMA c…

astro-ph.SR2018★ 530 cited

Gaps and Rings in an ALMA Survey of Disks in the Taurus Star-forming Region

Feng Long, Paola Pinilla, Gregory J. Herczeg +23

Rings are the most frequently revealed substructure in ALMA dust observations of protoplanetary disks, but their origin is still hotly debated. In this paper, we identify dust subs…