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Rossi, L.C.G. (author), Stam, D.M. (author), Turbet, M. (author)
In this work, we analyse linear polarization data of the planet at a distance, obtained with the Extreme Polarimeter (ExPo) on the William Herschel Telescope<br/>on La Palma. These spatially resolved, high-accuracy polarization observations of Venus show faint circular patterns centered on the sub-solar point that are absent in the flux...
abstract 2017
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Berzosa Molina, Javier (author), Stam, D.M. (author), Rossi, L.C.G. (author)
The detection of moons around extrasolar planets is one of the main focuses of current and future observatories. These silent companions contribute to the planets' observed signals but are barely detectable with current methods. Numerous gaseous exoplanets are known to orbit in the habitable zones of stars, and the expected abundance of natural...
abstract 2017
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Palmer, Chris (author), Rossi, L.C.G. (author), Stam, D.M. (author)
The direct detection of reflected starlight from exoplanets marks the beginning of a new era in the characterization of extrasolar planetary atmospheres. The flux and in particular the linear polarization signals from such planets are sensitive to atmospheric structure and composition, but other effects may also contribute to observed signals....
abstract 2017
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Rossi, L.C.G. (author), Groot, Ashwyn (author), Fauchez, Thomas (author), Stam, D.M. (author)
Because clouds scatter and absorb incident radiation, they play crucial roles in the radiative balance, the atmospheric chemistry, climate, and thus the habitability<br/>of a planet. Clouds usually affect the planet’s observables. We investigate here the effect of partial and variable cloud coverage on the light that is reflected by an<br/>Earth...
abstract 2018
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Mahapatra, G. (author), Stam, D.M. (author), Rossi, L.C.G. (author), Rodenhuis, M. (author), Snik, Frans (author), Keller, C.U. (author)
In this work, we analyse linear polarization data of the planet at a distance, obtained with the Extreme Polarimeter (ExPo) on the William Herschel Telescope<br/>on La Palma. These spatially resolved, high-accuracy polarization observations of Venus show faint circular patterns centered on the sub-solar point that are absent in the flux...
abstract 2017
document
Nijkamp, P. (author), Priemus, H. (author), Van Gent, H.A. (author), Van den Hanenberg, A.G.M. (author), Kreutzberger, E. (author), Stam, W.J. (author)
book 1990
document
Stam, W.J. (author)
In het kader van het onderzoeksprogramma 'Stedelijke Netwerken' is op 21 november 1989 een studiedag gehouden, met als thema 'De Internationale Concurrentiepositie van de Randstad: technologische vernieuwing, economische verandering en herstructurering van de infrastructuur'. De centrale thematiek van 'Stedelijke Netwerken' betreft vraagstukken...
book 1990
document
Stam, W.J. (author), Priemus, H. (author), Buwalda, D. (author)
book 1987
document
Stam, W.J. (author), Groetelaars, P. (author), Thissen, W.A.H. (author)
book 1987
document
Stam, W.J. (author)
Dit onderzoek is uitgevoerd in het kader van het onderzoeksprogramma Stedelijke Netwerken.
book 1990
document
Stam, W.J. (author)
book 1991
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Stam, C.J. (author), Van der Velden, N.M. (author), Rubio, G. (author), Verlinden, J.C. (author)
The maker culture has created a dynamic in which designers are less responsible for the design and quality of the final product, but for the tools the consumer uses to create their own. While additive manufacturing (AM) is gaining acceptance among the general public, it is still seen as a prototyping tool instead of a high quality production...
conference paper 2014
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Karalidi,, T. (author), Stam, D.M. (author), Guirado, D. (author)
Aims. We present numerically calculated, disk-integrated, spectropolarimetric signals of starlight that is reflected by vertically and horizontally inhomogeneous gaseous exoplanets. We include various spatial features that are present on Solar System’s gaseous planets: belts and zones, cyclonic spots, and polar hazes, to test whether such...
conference paper 2013
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Snik, F. (author), Karalidi, T. (author), Keller, C. (author), Laan, E. (author), Ter Horst, R. (author), Navarro, R. (author), Stam, D. (author), Aas, C. (author), De Vries, J. (author)
SPEX (Spectropolarimeter for Planetary EXploration) is an innovative, compact remote-sensing instrument for detecting and characterizing aerosols. With its 1-liter volume it is capable of full linear spectropolarimetry, without moving parts. High precision polarimetry is performed through encoding the degree and angle of linear polarization of...
conference paper 2008
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Sterzik, M. (author), Bagnulo, S. (author), Emd, C. (author), Stam, D.M. (author)
Earthshine observations are a classical benchmark for the studies of the atmospheres of exo-earth type planets. For this kind of observations, background subtraction is a critical and challenging task to disentangle the effects of atmospheric scattering from atmospheric transmission of molecular lines. In fact, although usually neglected, the...
conference paper 2017
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Stam, J.M.T. (author)
doctoral thesis 1994
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Stam, A.J. (author)
doctoral thesis 1959
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Stam, H.J. (author)
doctoral thesis 1990
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Stam, G.T.M. (author)
doctoral thesis 1994
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Stam, D.M. (author)
We present results of numerical simulations of flux F and degree of polarization P of light that is reflected by Earth–like extrasolar planets orbiting solar type stars. Our results are presented as functions of the wavelength (from 0.3 to 1.0 ?m, with 0.001 ?m spectral resolution) and as functions of the planetary phase angle. We use different...
journal article 2007
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