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Large surveys with new-generation high-contrast imaging instruments are needed to derive the frequency and properties of exoplanet populations with separations from $\sim$5 to 300 AU. A careful assessment of the stellar properties is…

Over the past decades, direct imaging has confirmed the existence of substellar companions (exoplanets or brown dwarfs) on wide orbits (>10 au) from their host stars. To understand their formation and evolution mechanisms, we have initiated…

地球与行星天体物理 · 物理学 2021-07-14 M. Langlois , R. Gratton , A. -M. Lagrange , P. Delorme , A. Boccaletti , M. Bonnefoy , A. -L. Maire , D. Mesa , G. Chauvin , S. Desidera , A. Vigan , A. Cheetham , J. Hagelberg , M. Feldt , M. Meyer , P. Rubini , H. Le Coroller , F. Cantalloube , B. Biller , M. Bonavita , T. Bhowmik , W. Brandner , S. Daemgen , V. D'Orazi , O. Flasseur , C. Fontanive , R. Galicher , J. Girard , P. Janin-Potiron , M. Janson , M. Keppler , T. Kopytova , E. Lagadec , J. Lannier , C. Lazzoni , R. Ligi , N. Meunier , A. Perreti , C. Perrot , L. Rodet , C. Romero , D. Rouan , M. Samland , G. Salter , E. Sissa , T. Schmidt , A. Zurlo , D. Mouillet , L. Denis , E. Thiebaut , J. Milli , Z. Wahhaj , J. -L. Beuzit , C. Dominik , Th. Henning , F. Menard , A. Muller , H. M. Schmid , M. Turatto , S. Udry , L. Abe , J. Antichi , F. Allard , A. Baruffolo , P. Baudoz , J. Baudrand , A. Bazzon , P. Blanchard , M. Carbillet , M. Carle , E. Cascone , J. Charton , R. Claudi , A. Costille , V. De Caprio , A. Delboulbe , K. Dohlen , D. Fantinel , P. Feautrier , T. Fusco , P. Gigan , E. Giro , D. Gisler , L. Gluck , C. Gry , N. Hubin , E. Hugot , M. Jaquet , M. Kasper , D. Le Mignant , M. Llored , F. Madec , Y. Magnard , P. Martinez , D. Maurel , S. Messina , O. Moller-Nilsson , L. Mugnier , T. Moulin , A. Origne , A. Pavlov , D. Perret , C. Petit , J. Pragt , P. Puget , P. Rabou , J. Ramos , F. Rigal , S. Rochat , R. Roelfsema , G. Rousset , A. Roux , B. Salasnich , J. F. Sauvage , A. Sevin , C. Soenke , E. Stadler , M. Suarez , L. Weber , F. Wildi , E. Rickman

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 set. Direct imaging (DI) is ideally positioned to probe the…

地球与行星天体物理 · 物理学 2026-05-28 V. Squicciarini , S. Desidera , G. Chauvin , F. Kiefer , V. D'Orazi , C. Fontanive , A. Vigan , D. Nardiello , S. Messina , D. Albert , S. Bergeon , J. -L. Beuzit , B. Biller , A. Boccaletti , M. Bonavita , M. Bonnefoy , W. Brandner , F. Cantalloube , A. Cheetham , P. Delorme , C. Dominik , M. Feldt , R. Galicher , R. Gratton , J. Hagelberg , Th. Henning , M. Janson , E. Lagadec , A. -M. Lagrange , M. Langlois , C. Lazzoni , H. Le Coroller , R. Ligi , A. -L. Maire , G. -D. Marleau , F. Ménard , D. Mesa , N. Meunier , M. Meyer , C. Mordasini , C. Moutou , A. Müller , C. Perrot , M. Samland , H. M. Schmid , T. Schmidt , E. Sissa , M. Turatto , S. Udry , A. Zurlo , L. Abe , J. Antichi , A. Baruffolo , P. Baudoz , J. Baudrand , A. Bazzon , P. Blanchard , A. J. Bohn , M. Carbillet , M. Carle , E. Cascone , J. Charton , R. Claudi , A. Costille , V. De Caprio , A. Delboulbé , K. Dohlen , N. Engler , D. Fantinel , P. Feautrier , T. Fusco , P. Gigan , J. H. Girard , E. Giro , D. Gisler , L. Glück , C. Gry , N. Hubin , E. Hugot , M. Jaquet , M. Kasper , D. Le Mignant , M. Llored , F. Madec , Y. Magnard , P. Martínez , D. Maurel , O. Möller-Nilsson , D. Mouillet , T. Moulin , A. Origné , A. Pavlov , D. Perret , C. Petit , J. Pragt , P. Puget , P. Rabou , J. Ramos , F. Rigal , S. Rochat , R. Roelfsema , G. Rousset , A. Roux , B. Salasnich , J. -F. Sauvage , A. Sevin , C. Soenke , E. Stadler , M. Suárez , Z. Wahhaj , L. Weber , F. Wildi

The SHINE project is a 500-star survey performed with SPHERE on the VLT for the purpose of directly detecting new substellar companions and understanding their formation and early evolution. Here we present an initial statistical analysis…

地球与行星天体物理 · 物理学 2021-07-14 A. Vigan , C. Fontanive , M. Meyer , B. Biller , M. Bonavita , M. Feldt , S. Desidera , G. -D. Marleau , A. Emsenhuber , R. Galicher , K. Rice , D. Forgan , C. Mordasini , R. Gratton , H. Le Coroller , A. -L. Maire , F. Cantalloube , G. Chauvin , A. Cheetham , J. Hagelberg , A. -M. Lagrange , M. Langlois , M. Bonnefoy , J. -L. Beuzit , A. Boccaletti , V. D'Orazi , P. Delorme , C. Dominik , Th. Henning , M. Janson , E. Lagadec , C. Lazzoni , R. Ligi , F. Menard , D. Mesa , S. Messina , C. Moutou , A. Müller , C. Perrot , M. Samland , H. M. Schmid , T. Schmidt , E. Sissa , M. Turatto , S. Udry , A. Zurlo , L. Abe , J. Antichi , R. Asensio-Torres , A. Baruffolo , P. Baudoz , J. Baudrand , A. Bazzon , P. Blanchard , A. J. Bohn , S. Brown Sevilla , M. Carbillet , M. Carle , E. Cascone , J. Charton , R. Claudi , A. Costille , V. De Caprio , A. Delboulbé , K. Dohlen , N. Engler , D. Fantinel , P. Feautrier , T. Fusco , P. Gigan , J. H. Girard , E. Giro , D. Gisler , L. Gluck , C. Gry , N. Hubin , E. Hugot , M. Jaquet , M. Kasper , D. Le Mignant , M. Llored , F. Madec , Y. Magnard , P. Martinez , D. Maurel , O. Möller-Nilsson , D. Mouillet , T. Moulin , A. Origné , A. Pavlov , D. Perret , C. Petit , J. Pragt , P. Puget , P. Rabou , J. Ramos , E. L. Rickman , F. Rigal , S. Rochat , R. Roelfsema , G. Rousset , A. Roux , B. Salasnich , J. -F. Sauvage , A. Sevin , C. Soenke , E. Stadler , M. Suarez , Z. Wahhaj , L. Weber , F. Wildi

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 contrast imaging. Although stars with known stellar companions…

Context. The SPHERE High-contrast Imaging survey for Exoplanets (SHINE) represents one of the largest direct imaging campaigns, targeting over 400 young, nearby stars with the goal of detecting and characterizing giant exoplanets and brown…

Orbital monitoring of exoplanetary and stellar systems is fundamental for analysing their architecture, dynamical stability and evolution, and mechanisms of formation. Current high-contrast extreme-adaptive optics imagers like SPHERE, GPI,…

SPHERE (Beuzit et al,. 2019) has now been in operation at the VLT for more than 5 years, demonstrating a high level of performance. SPHERE has produced outstanding results using a variety of operating modes, primarily in the field of direct…

地球与行星天体物理 · 物理学 2020-03-16 A. Boccaletti , G. Chauvin , D. Mouillet , O. Absil , F. Allard , S. Antoniucci , J. -C. Augereau , P. Barge , A. Baruffolo , J. -L. Baudino , P. Baudoz , M. Beaulieu , M. Benisty , J. -L. Beuzit , A. Bianco , B. Biller , B. Bonavita , M. Bonnefoy , S. Bos , J. -C. Bouret , W. Brandner , N. Buchschache , B. Carry , F. Cantalloube , E. Cascone , A. Carlotti , B. Charnay , A. Chiavassa , E. Choquet , Y. Clenet , A. Crida , J. De Boer , V. De Caprio , S. Desidera , J. -M. Desert , J. -B. Delisle , P. Delorme , K. Dohlen , D. Doelman , C. Dominik , V. D Orazi , C. Dougados , S. Doute , D. Fedele , M. Feldt , F. Ferreira , C. Fontanive , T. Fusco , R. Galicher , A. Garufi , E. Gendron , A. Ghedina , C. Ginski , J. -F. Gonzalez , D. Gratadour , R. Gratton , T. Guillot , S. Haffert , J. Hagelberg , T. Henning , E. Huby , M. Janson , I. Kamp , C. Keller , M. Kenworthy , P. Kervella , Q. Kral , J. Kuhn , E. Lagadec , G. Laibe , M. Langlois , A. -M. Lagrange , R. Launhardt , L. Leboulleux , H. Le Coroller , G. Li Causi , M. Loupias , A. L. Maire , G. Marleau , F. Martinache , P. Martinez , D. Mary , M. Mattioli , J. Mazoyer , H. Meheut , F. Menard , D. Mesa , N. Meunier , Y. Miguel , J. Milli , M. Min , P. Molliere , C. Mordasini , G. Moretto , L. Mugnier , G. Muro Arena , N. Nardetto , M. N Diaye , N. Nesvadba , F. Pedichini , P. Pinilla , E. Por , A. Potier , S. Quanz , J. Rameau , R. Roelfsema , D. Rouan , E. Rigliaco , B. Salasnich , M. Samland , J. -F. Sauvage , H. -M. Schmid , D. Segransan , I. Snellen , F. Snik , F. Soulez , E. Stadler , D. Stam , M. Tallon , P. Thebault , E. Thiebaut , C. Tschudi , S. Udry , R. van Holstein , P. Vernazza , F. Vidal , A. Vigan , R. Waters , F. Wildi , M. Willson , A. Zanutta , A. Zavagno , A. Zurlo

Observations of circumstellar environments to look for the direct signal of exoplanets and the scattered light from disks has significant instrumental implications. In the past 15 years, major developments in adaptive optics, coronagraphy,…

The SHINE program is a large high-contrast near-infrared survey of 600 young, nearby stars. It is aimed at searching for and characterizing new planetary systems using VLT/SPHERE's unprecedented high-contrast and high-angular resolution…

地球与行星天体物理 · 物理学 2017-12-13 G. Chauvin , S. Desidera , A. -M. Lagrange , A. Vigan , R. Gratton , M. Langlois , M. Bonnefoy , J. -L. Beuzit , M. Feldt , D. Mouillet , M. Meyer , A. Cheetham , B. Biller , A. Boccaletti , V. D'Orazi , R. Galicher , J. Hagelberg , A. -L. Maire , D. Mesa , J. Olofsson , M. Samland , T. O. B. Schmidt , E. Sissa , M. Bonavita , B. Charnay , M. Cudel , S. Daemgen , P. Delorme , P. Janin-Potiron , M. Janson , M. Keppler , H. Le Coroller , R. Ligi , G. D. Marleau , S. Messina , P. Molliere , C. Mordasini , A. Muller , S. Peretti , C. Perrot , L. Rodet , D. Rouan , A. Zurlo , C. Dominik , T. Henning , F. Menard , H. -M. Schmid , M. Turatto , S. Udry , F. Vakili , L. Abe , J. Antichi , A. Baruffolo , P. Baudoz , J. Baudrand , P. Blanchard , A. Bazzon , T. Buey , M. Carbillet , M. Carle , J. Charton , E. Cascone , R. Claudi , A. Costille , A. Deboulbe , V. De Caprio , K. Dohlen , D. Fantinel , P. Feautrier , T. Fusco , P. Gigan , E. Giro , D. Gisler , L. Gluck , N. Hubin , E. Hugot , M. Jaquet , M. Kasper , F. Madec , Y. Magnard , P. Martinez , D. Maurel , D. Le Mignant , O. Moller-Nilsson , M. Llored , T. Moulin , A. Origné , A. Pavlov , D. Perret , C. Petit , J. Pragt , P. Puget , P. Rabou , J. Ramos , R. Rigal , S. Rochat , R. Roelfsema , G. Rousset , A. Roux , B. Salasnich , J. -F. Sauvage , A. Sevin , C. Soenke , E. Stadler , M. Suarez , L. Weber , F. Wildi , S. Antoniucci , J. -C. Augereau , J. -L. Baudino , W. Brandner , N. Engler , J. Girard , C. Gry , Q. Kral , T. Kopytova , E. Lagadec , J. Milli , C. Moutou , J. Schlieder , J. Szulágyi , C. Thalmann , Z. Wahhaj

Measuring the orbits of directly-imaged exoplanets requires precise astrometry at the milliarcsec level over long periods of time due to their wide separation to the stars ($\gtrsim$10 au) and long orbital period ($\gtrsim$20 yr). To reach…

We aim at searching for exoplanets on the whole ESO/VLT-SPHERE archive with improved and unsupervised data analysis algorithm that could allow to detect massive giant planets at 5 au. To prepare, test and optimize our approach, we gathered…

地球与行星天体物理 · 物理学 2023-07-26 A. Chomez , A. -M. Lagrange , P. Delorme , M. Langlois , G. Chauvin , O. Flasseur , J. Dallant , F. Philipot , S. Bergeon , D. Albert , N. Meunier , P. Rubini

Recent surveys indicate that planets in binary systems are more abundant than previously thought, which is in agreement with theoretical work on disc dynamics and planet formation in binaries. In order to measure the abundance and physical…

地球与行星天体物理 · 物理学 2020-11-11 J. Hagelberg , N. Engler , C. Fontanive , S. Daemgen , S. P. Quanz , J. Kühn , M. Reggiani , M. Meyer , R. Jayawardhana , V. Kostov

SPHERE is an instrument designed and built by a consortium of French, German, Italian, Swiss and Dutch institutes in collaboration with ESO. The project is currently in its Phase B. The main goal of SPHERE is to gain at least one order of…

I present spherical (https://github.com/m-samland/spherical), a software package and database designed for the ESO VLT/SPHERE high-contrast imager. SPHERE has produced the world's largest archive of direct imaging observations of exoplanets…

天体物理仪器与方法 · 物理学 2025-09-11 Matthias Samland

The search for extrasolar planets has driven rapid advances in instrumentation, resulting in cameras such as SPHERE at the VLT, GPI at Gemini South and SCExAO at Subaru, capable of achieving very high contrast ($\sim10^{6}$) around bright…

太阳与恒星天体物理 · 物理学 2020-03-18 P. Scicluna , F. Kemper , R. Siebenmorgen , R. Wesson , J. A. D. L. Blommaert , S. Wolf

We present first results from a new exoplanet direct imaging survey being carried out with the Subaru Coronagraphic Extreme Adaptive Optics project (SCExAO) coupled to the CHARIS integral field spectrograph and assisted with Keck/NIRC2,…

The new planet finder for the Very Large Telescope (VLT), the Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE), just had its first light in Paranal. A dedicated instrument for the direct detection of planets, SPHERE, is…

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