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- University College LondonGB31 papers
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- École Polytechnique Fédérale de LausanneCH3 papers
- Goddard Space Flight CenterUS3 papers
- National Institute for AstrophysicsIT3 papers
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- Astronomical Observatory of RomeIT2 papers
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4 papers · 1 filter
The Swift-UVOT ultraviolet and visible grism calibration
N. P. M. Kuin, W. Landsman, A. A. Breeveld +16
We present the calibration of the Swift UVOT grisms, of which there are two, providing low-resolution field spectroscopy in the ultraviolet and optical bands respectively. The UV g…
Why CLEAN when you can PURIFY? A new approach for next-generation radio-interferometric imaging
Rafael E. Carrillo, Jason D. McEwen, Yves Wiaux
In recent works, sparse models and convex optimization techniques have been applied to radio-interferometric (RI) imaging showing the potential to outperform state-of-the-art imagi…
Analysing the polarisation of the CMB with spin scale-discretised wavelets
Boris Leistedt, Jason D. McEwen, Martin Büttner +3
We discuss a new scale-discretised directional wavelet transform to analyse spin signals defined on the sphere, in particular the polarisation of the cosmic microwave background (C…
The varying w spread spectrum effect for radio interferometric imaging
Laura Wolz, Filipe B. Abdalla, Rafael E. Carrillo +2
We study the impact of the spread spectrum effect in radio interferometry on the quality of image reconstruction. This spread spectrum effect will be induced by the wide field-of-v…