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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…

Earth and Planetary Astrophysics · Physics 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

Given current demographic and health trends, and their economic implications, home healthcare technology has become a fertile area for research and development. Motivated by the need for a radical reform of healthcare provision, SPHERE is a…

Human-Computer Interaction · Computer Science 2014-02-04 Alison Burrows , Rachel Gooberman-Hill , Ian Craddock , David Coyle

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…

Spatially resolving the immediate surroundings of young stars is a key challenge for the planet formation community. SPHERE on the VLT represents an important step forward by increasing the opportunities offered by optical or near-infrared…

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…

Instrumentation and Methods for Astrophysics · Physics 2025-09-11 Matthias Samland

SPREV, short for hyperSphere Reduced to two-dimensional Regular Polygon for Visualisation, is a novel dimensionality reduction technique developed to address the challenges of reducing dimensions and visualizing labeled datasets that…

Graphics · Computer Science 2025-04-16 Srivathsan Amruth

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,…

The SPHERE project has developed a multi-modal sensor platform for health and behavior monitoring in residential environments. So far, the SPHERE platform has been deployed for data collection in approximately 50 homes for duration up to…

Various structures are visible within Spectro-Polarimetric High-contrast Exoplanet REsearch instrument (SPHERE) images that are not always straightforward to interpret. In this article we present a review of these features and demonstrate…

Instrumentation and Methods for Astrophysics · Physics 2019-07-09 Faustine Cantalloube , Kjetil Dohlen , Julien Milli , Wolfgang Brandner , Arthur Vigan

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,…

Instrumentation and Methods for Astrophysics · Physics 2019-11-13 J. -L. Beuzit , A. Vigan , D. Mouillet , K. Dohlen , R. Gratton , A. Boccaletti , J. -F. Sauvage , H. M. Schmid , M. Langlois , C. Petit , A. Baruffolo , M. Feldt , J. Milli , Z. Wahhaj , L. Abe , U. Anselmi , J. Antichi , R. Barette , J. Baudrand , P. Baudoz , A. Bazzon , P. Bernardi , P. Blanchard , R. Brast , P. Bruno , T. Buey , M. Carbillet , M. Carle , E. Cascone , F. Chapron , G. Chauvin , J. Charton , R. Claudi , A. Costille , V. De Caprio , A. Delboulbé , S. Desidera , C. Dominik , M. Downing , O. Dupuis , C. Fabron , D. Fantinel , G. Farisato , P. Feautrier , E. Fedrigo , T. Fusco , P. Gigan , C. Ginski , J. Girard , E. Giro , D. Gisler , L. Gluck , C. Gry , T. Henning , N. Hubin , E. Hugot , S. Incorvaia , M. Jaquet , M. Kasper , E. Lagadec , A. -M. Lagrange , H. Le Coroller , D. Le Mignant , B. Le Ruyet , G. Lessio , J. -L. Lizon , M. Llored , L. Lundin , F. Madec , Y. Magnard , M. Marteaud , P. Martinez , D. Maurel , F. Ménard , D. Mesa , O. Möller-Nilsson , T. Moulin , C. Moutou , A. Origné , J. Parisot , A. Pavlov , D. Perret , J. Pragt , P. Puget , P. Rabou , J. Ramos , J. -M. Reess , F. Rigal , S. Rochat , R. Roelfsema , G. Rousset , A. Roux , M. Saisse , B. Salasnich , E. Santambrogio , S. Scuderi , D. Segransan , A. Sevin , R. Siebenmorgen , C. Soenke , E. Stadler , M. Suarez , D. Tiphène , M. Turatto , S. Udry , F. Vakili , L. B. F. M. Waters , L. Weber , F. Wildi , G. Zins , A. Zurlo

The SPHERE (spectro-photometric exoplanet research) extreme-AO planet hunter saw first light at the VLT observatory on Mount Paranal in May 2014 after ten years of development. Great efforts were put into modelling its performance,…

Effective personalized feedback is crucial for learning programming. However, providing personalized, real-time feedback in large programming classrooms poses significant challenges for instructors. This paper introduces SPHERE, an…

Human-Computer Interaction · Computer Science 2024-10-23 Xiaohang Tang , Sam Wong , Marcus Huynh , Zicheng He , Yalong Yang , Yan Chen

This paper describes some of the challenges set within SPHERE, a large-scale Interdisciplinary Research Collaboration that aims to develop sensor systems to monitor people's health and wellbeing in the home. In particular we discuss the…

Human-Computer Interaction · Computer Science 2014-08-12 Alison Burrows , Rachel Gooberman-Hill , Ian Craddock , David Coyle

We present a new open-source data-reduction pipeline to reconstruct spectral data cubes from raw SPHERE integral-field spectrograph (IFS) data. The pipeline is written in Python and based on the pipeline that was developed for the CHARIS…

Earth and Planetary Astrophysics · Physics 2022-12-14 Matthias Samland , Timothy Brandt , Julien Milli , Philippe Delorme , Arthur Vigan

Direct imaging is the primary technique currently used to detect young and warm exoplanets and understand their formation scenarios. The extreme flux ratio between an exoplanet and its host star requires the use of coronagraphs to attenuate…

Instrumentation and Methods for Astrophysics · Physics 2023-06-01 Axel Potier , Zahed Wahhaj , Raphael Galicher , Johan Mazoyer , Pierre Baudoz , Gael Chauvin , Garreth Ruane

SPHERE (Spectro Polarimetric High contrast Exoplanet REsearch), the planet finder instrument for the VLT is designed to study relatively bright extrasolar giant planets around young or nearby stars. SPHERE is a set of three instruments fed…

We describe the design and implementation of a high performance cloud that we have used to archive, analyze and mine large distributed data sets. By a cloud, we mean an infrastructure that provides resources and/or services over the…

Distributed, Parallel, and Cluster Computing · Computer Science 2008-08-25 Robert L Grossman , Yunhong Gu

We present the performance of the Integral Field Spectrograph (IFS) of SPHERE, the high-contrast imager for the ESO VLT telescope designed to perform imaging and spectroscopy of extrasolar planets, obtained from tests performed at the…

While a large fraction of the stars are in multiple systems, our understanding of the processes leading to the formation of these systems is still inadequate. Given the large theoretical uncertainties, observation plays a basic role. Here…

Solar and Stellar Astrophysics · Physics 2022-11-04 R. Gratton , S. Desidera , F. Marzari , M. Bonavita
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