52 citations · 413 across the 29 of their papers we have counts for
23 papers · 1 filter
The SPHERE infrared survey for exoplanets (SHINE) V. Full sample characterization
V. Squicciarini, S. Desidera, G. Chauvin +109
Unbiased surveys of large stellar samples are the prime means through which the prevalence of exoplanets can be derived, and crucial constraints to planet formation models can be s…
The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) V: Comparison between scattered light and thermal emission
J. Milli, J. Olofsson, M. Bonduelle +33
Debris discs are analogues to our own Kuiper belt around main-sequence stars and are therefore referred to as exoKuiper belts. They have been resolved at high angular resolution at…
JWST/MIRI coronagraphic search for planets in systems with gapped exoKuiper belts and proper motion anomalies
R. Bendahan-West, S. Marino, A. L. Carter +17
Over the past decade, ALMA has uncovered a range of substructures within exoKuiper belts, pointing to a population of undetected planets. With JWST's sensitivity, we now have the o…
JWST/NIRCam observations of HD~92945 debris disk: An asymmetric disk with a gap
C. Lazzoni, R. Bendahan-West, S. Marino +9
We present the first observations of the HD92945 debris disk obtained with JWST, targeting this nearby K0V star located at 21.54 pc from the Sun. High-contrast coronagraphic imagin…
GPI+SPHERE detection of a 6.1 circumbinary planet around HD 143811
Vito Squicciarini, Johan Mazoyer, Christian Wilkinson +6
Owing to its sensitivity to wide-orbit giant exoplanets, direct imaging is uniquely positioned to shed light on the interplay between protoplanetary disks and stellar hosts. In add…
The SPHERE infrared survey for exoplanets (SHINE). V. Complete observations, data reduction and analysis, detection performances, and final results
A. Chomez, P. Delorme, A. -M. Lagrange +117
During the past decade, state-of-the-art planet-finder instruments like SPHERE@VLT, coupling coronagraphic devices and extreme adaptive optics systems, unveiled, thanks to large su…
Searching for substellar companion candidates with Gaia. III. Search for companions to members of young associations
A. -M. Lagrange, F. Kiefer, P. Rubini +13
Absolute astrometry with Gaia is expected to detect and characterize the orbits of thousands of exoplanets in the coming years. A tool, GaiaPMEX, was recently developed to characte…
The COBREX archival survey: improved constraints on the occurrence rate of wide-orbit substellar companions. I. A uniform re-analysis of 400 stars from the GPIES survey
V. Squicciarini, J. Mazoyer, A. -M. Lagrange +4
Direct imaging (DI) campaigns are uniquely suited to probing the outer regions around young stars and looking for giant exoplanet and brown dwarf companions, hence providing key co…
Giant planets population around B stars from the first part of the BEAST survey
P. Delorme, A. Chomez, V. Squicciarini +23
Exoplanets form from circumstellar protoplanetary discs whose fundamental properties (notably their extent, composition, mass, temperature and lifetime) depend on the host star pro…
Implications of the discovery of AF Lep b: The mass-luminosity relation for planets in the Pic Moving Group and the L-T transition for young companions and free-floating planets
R. Gratton, M. Bonavita, D. Mesa +7
Dynamical masses of young planets aged between 10 and 200 Myr detected in imaging play a crucial role in shaping models of giant planet formation. Regrettably, only a few such obje…
Stellar companions and Jupiter-like planets in young associations
R. Gratton, M. Bonavita, D. Mesa +9
Recently, combining high-contrast imaging and space astrometry we found that Jupiter-like (JL) planets are frequent in the beta Pic moving group (BPMG) around those stars where the…
Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): HD 34700 A unveils an inner ring
G. Columba, E. Rigliaco, R. Gratton +18
Context. The study of protoplanetary disks is fundamental to understand their evolution and interaction with the surrounding environment, and to constrain planet formation mechanis…
An imaged 15Mjup companion within a hierarchical quadruple system
A. Chomez, V. Squicciarini, A. -M. Lagrange +20
Since 2019, the direct imaging B-star Exoplanet Abundance Study (BEAST) at SPHERE@VLT has been scanning the surroundings of young B-type stars in order to ascertain the ultimate fr…
BEAST detection of a brown dwarf and a low-mass stellar companion around the young bright B star HIP 81208
Gayathri Viswanath, Markus Janson, Raffaele Gratton +15
Recent observations from B-star Exoplanet Abundance Study (BEAST) have illustrated the existence of sub-stellar companions around very massive stars. In this paper, we present the…
Detecting planetary mass companions near the water frost-line using JWST interferometry
Shrishmoy Ray, Sasha Hinkley, Steph Sallum +4
JWST promises to be the most versatile infrared observatory for the next two decades. The Near Infrared and Slitless Spectrograph (NIRISS) instrument, when used in the Aperture Mas…
The high-albedo, low polarization disk around HD 114082 harbouring a Jupiter-sized transiting planet
N. Engler, J. Milli, R. Gratton +36
We present new optical and near-IR images of debris disk around the F-type star HD 114082. We obtained direct imaging observations and analysed the TESS photometric time series dat…
TOI-179: a young system with a transiting compact Neptune-mass planet and a low-mass companion in outer orbit
S. Desidera, M. Damasso, R. Gratton +29
Transiting planets around young stars are key benchmarks for our understanding of planetary systems. One of such candidates was identified around the K dwarf HD 18599 by TESS, labe…
A scaled-up planetary system around a supernova progenitor
V. Squicciarini, R. Gratton, M. Janson +24
Virtually all known exoplanets reside around stars with ; to clarify if the dearth of planets around more massive stars is real, we launched the direct-imaging B-sta…
A wide-orbit giant planet in the high-mass b Centauri binary system
Markus Janson, Raffaele Gratton, Laetitia Rodet +24
Planet formation occurs around a wide range of stellar masses and stellar system architectures. An improved understanding of the formation process can be achieved by studying it ac…
Signs of late infall and possible planet formation around DR Tau using VLT/SPHERE and LBTI/LMIRCam
D. Mesa, C. Ginski, R. Gratton +31
Context. Protoplanetary disks around young stars often contain substructures like rings, gaps, and spirals that could be caused by interactions between the disk and forming planets…
Limits on the presence of planets in systems with debris disks: HD 92945 and HD 107146
D. Mesa, S. Marino, M. Bonavita +38
Recent observations of resolved cold debris disks at tens of au have revealed that gaps could be a common feature in these Kuiper belt analogues. Such gaps could be evidence for th…
BEAST begins: Sample characteristics and survey performance of the B-star Exoplanet Abundance Study
Markus Janson, Vito Squicciarini, Philippe Delorme +20
While the occurrence rate of wide giant planets appears to increase with stellar mass at least up through the A-type regime, B-type stars have not been systematically studied in la…
The GAPS Programme at TNG XXVIII -- A pair of hot-Neptunes orbiting the young star TOI-942
Ilaria Carleo, Silvano Desidera, Domenico Nardiello +48
Both young stars and multi-planet systems are primary objects that allow us to study, understand and constrain planetary formation and evolution theories. We validate the physical…