985 citations
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41 papers · 1 filter
Predicting exoplanet observability in time, contrast, separation and polarization, in scattered light
Guillaume Schworer, Peter G. Tuthill
Polarimetry is one of the keys to enhanced direct imaging of exoplanets. Not only does it deliver a differential observable providing extra contrast, but when coupled with spectros…
Sensitivity improvements for Shack-Hartmann wavefront sensors using total variation minimisation
Alastair Basden
We investigate the improvements in Shack-Hartmann wavefront sensor image processing that can be realised using total variation minimisation techniques to remove noise from these im…
Observational calibration of the projection factor of Cepheids I. The Type II Cepheid kappa Pavonis
Joanne Breitfelder, Pierre Kervella, Antoine Mérand +5
The distances of pulsating stars, in particular Cepheids, are commonly measured using the parallax of pulsation technique. The different versions of this technique combine measurem…
Performance of the VLT Planet Finder SPHERE II. Data analysis and Results for IFS in laboratory
D. Mesa, R. Gratton, A. Zurlo +33
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 ex…
Simultaneous Estimation of Photometric Redshifts and SED Parameters: Improved Techniques and a Realistic Error Budget
Viviana Acquaviva, Anand Raichoor, Eric Gawiser
We seek to improve the accuracy of joint galaxy photometric redshift estimation and spectral energy distribution (SED) fitting. By simulating different sources of uncorrected syste…
Client Interfaces to the Virtual Observatory Registry
Markus Demleitner, Paul Harrison, Mark Taylor +1
The Virtual Observatory Registry is a distributed directory of information systems and other resources relevant to astronomy. To make it useful, facilities to query that directory…