Three-wavelength sun photometer for aerosol characterization
A three-wavelength sun-photometer was designed and built. The attenuation of direct solar light, at wavelengths of 0.38 micrometers , 0.50 micrometers and 1.00...
Through the Looking-Glass: Reflected Light from Other Worlds
High-resolution spectroscopy (R>100,000) is a robust and powerful tool for directly characterizing exoplanet atmospheres that is applicable to both transiting...
Tidal Remnants Around the Galactic Globular Clusters NGC1851 and NGC1904
Deep photometry around the Galactic globular clusters NGC 1851 and NGC 1904 obtained with the Wide Field Imager in the 2.2 m ESO telescope reveals a distinct...
We have the unique opportunity to observe and model nearby streams around the two large Local Group spirals Milky Way and M31 in great detail. However, the...
Photon-counting techniques have been applied to a study of the movement of the image of an unresolved star at the 50 cm telescope of the Royal Academy of...