C. Keller

Latest

• SPHERE+: Imaging young Jupiters down to the snowline
• First direct detection of a polarized companion outside a resolved circumbinary disk around CS Chamaeleonis
• Review of high-contrast imaging systems for current and future ground- and space-based telescopes I: coronagraph design methods and optical performance metrics
• ERIS: revitalising an adaptive optics instrument for the VLT
• A Planet with a Disc? A Surprising Detection in Polarised Light with VLT/SPHERE
• Three Years of SPHERE: The Latest View of the Morphology and Evolution of Protoplanetary Discs
• The Hera Saturn entry probe mission
• Combining high-dispersion spectroscopy with high contrast imaging: Probing rocky planets around our nearest neighbors
• HARPS Spectropolarimetry of the Classical T Tauri Stars GQ Lup and TW Hya
• SPICES: spectro-polarimetric imaging and characterization of exoplanetary systems. From planetary disks to nearby Super Earths
• Modeling the instrumental polarization of the VLT and E-ELT telescopes with the M&m's code
• HARPS spectropolarimetry of classical T Tauri stars
• Design and Prototype Results of the ExPo Imaging Polarimeter
• The HARPS Polarimeter
• HARPSpol — The New Polarimetric Mode for HARPS
• EPOL: the exoplanet polarimeter for EPICS at the E-ELT
• EPICS, the exoplanet imager for the E-ELT
• Two Ways of Improving Stokes Inversions
• Characterization of Extra-solar Planets with Direct-Imaging Techniques
• Polarimetry of Mars with SPEX, an Innovative Spectropolarimeter
• A New Era in Solar Thermal-IR Astronomy: the NSO Array Camera (NAC) on the McMath-Pierce Telescope
• Mapping sodium distribution in the exosphere of Mercury with tip-tilt image stabilization
• Are You Being Served? - Solar Data Management at the National Solar Observatory
• First-Light Instrumentation for the Advanced Technology Solar Telescope
• The Solar Oxygen Abundance, and the Rare Isotopes of C and O, Derived from Infrared Spectra of Carbon Monoxide
• Early Results from SOLIS
• Improved Spatial Resolution of the Sodium Distribution on Mercury
• Innovative Information Technology for Space Weather Research
• Mapping sodium distribution on the surface of Mercury
• First Results from SOLIS
• Advanced Technology Solar Telescope - Approach to a Four-meter Diffraction Limited Solar Telescope
• Design and development of the Advanced Technology Solar Telescope
• Science Objectives and Technical Challenges of the Advanced Technology Solar Telescope (Invited review)
• Polarization Modulation for Solar Vector-Polarimeters using Ferroelectric Liquid Crystals
• The Advanced Technology Solar Telescope: Science Goals and Instrument Description
• The Advanced Solar Telescope
• New Results from the Flare Genesis Experiment
• Optimum Apodization for Speckle Imaging of Extended Sources
• Phase-Diversity Data Sets and Processing Strategies
• The Advanced Solar Telescope: I. Science Goals
• The USAF Improved Solar Observing Optical Network (ISOON) and its Impact on Solar Synoptic Data Bases
• Chromospheric Events in the Quiet Network
• ISOON: The Improved Solar Observing Optical Network
• Asteroseismology via Equivalent Widths -- Tests on Procyon, Eta Bootes, and Alpha Triangulum
• NIM-2 -- A Near Infrared Imaging Vector Magnetograph
• SOLIS - A Modern Facility for Synoptic Solar Observations
• Narrow-Band Speckle Imaging
• Small-Scale Structure in Active Regions (Invited)
• Fine-Scale Magnetic Field in a Sunspot Penumbra and Adjacent Photosphere