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15 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…
A Bayesian blind survey for cold molecular gas in the Universe
Lindley Lentati, Chris Carilli, Paul Alexander +2
A new Bayesian method for performing an image domain search for line-emitting galaxies is presented. The method uses both spatial and spectral information to robustly determine the…
HARPO: a TPC as a gamma-ray telescope and polarimeter
Denis Bernard, Philippe Bruel, Mickael Frotin +14
A gas Time Projection Chamber can be used for gamma-ray astronomy with excellent angular-precision and sensitivity to faint sources, and for polarimetry, through the measurement of…
On-Orbit Degradation of Solar Instruments
A. BenMoussa, S. Gissot, U. Schühle +38
We present the lessons learned about the degradation observed in several space solar missions, based on contributions at the Workshop about On-Orbit Degradation of Solar and Space…
Calibrating High-Precision Faraday Rotation Measurements for LOFAR and the Next Generation of Low-Frequency Radio Telescopes
C. Sotomayor-Beltran, C. Sobey, J. W. T. Hessels +77
Faraday rotation measurements using the current and next generation of low-frequency radio telescopes will provide a powerful probe of astronomical magnetic fields. However, achiev…
Accurate Sky Continuum Subtraction with Fibre-fed Spectrographs
Yanbin Yang, Myriam Rodrigues, Mathieu Puech +10
Fibre-fed spectrographs now have throughputs equivalent to slit spectrographs. However, the sky subtraction accuracy that can be reached has often been pinpointed as one of the maj…