Christoph U. Keller
Christoph U. Keller
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Exoplanets
Instrumentation
Solar Physics
Remote Sensing
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A survey of the linear polarization of directly imaged exoplanets and brown dwarf companions with SPHERE-IRDIS. First polarimetric detections revealing disks around DH Tau B and GSC 6214-210 B
CS Cha B: A disc-obscured M-type star mimicking a polarised planetary companion
VizieR Online Data Catalog: CS Cha B spectrum (Haffert+, 2020)
IRDAP: SPHERE-IRDIS polarimetric data reduction pipeline
SPHERE+: Imaging young Jupiters down to the snowline
RefPlanets: Search for reflected light from extrasolar planets with SPHERE/ZIMPOL
The Young Suns Exoplanet Survey: Detection of a wide-orbit planetary-mass companion to a solar-type Sco-Cen member
VizieR Online Data Catalog: A planetary-mass companion to a solar-type star (Bohn+, 2020)
Polarimetric imaging mode of VLT/SPHERE/IRDIS. I. Description, data reduction, and observing strategy
Polarimetric imaging mode of VLT/SPHERE/IRDIS. II. Characterization and correction of instrumental polarization effects
Discovery of a directly imaged disk in scattered light around the Sco-Cen member Wray 15-788
VizieR Online Data Catalog: Discovery of a resolved disk around Wray 15-788 (Bohn+, 2019)
SPHERE/ZIMPOL high resolution polarimetric imager. I. System overview, PSF parameters, coronagraphy, and polarimetry
First direct detection of a polarized companion outside a resolved circumbinary disk around CS Chamaeleonis
A Planet with a Disc? A Surprising Detection in Polarised Light with VLT/SPHERE
Combining angular differential imaging and accurate polarimetry with SPHERE/IRDIS to characterize young giant exoplanets
Three Years of SPHERE: The Latest View of the Morphology and Evolution of Protoplanetary Discs
BP Piscium: its flaring disc imaged with SPHERE/ZIMPOL$^★$
Direct detection of scattered light gaps in the transitional disk around HD 97048 with VLT/SPHERE
Multiple rings in the transition disk and companion candidates around RX J1615.3-3255. High contrast imaging with VLT/SPHERE
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