4 papers
Probing eV-scale axions with CAST
CAST Collaboration, E. Arik, S. Aune +70
We have searched for solar axions or other pseudoscalar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) setup. Whereas we previously have report…
The X-ray Telescope of the CAST Experiment
R. Kotthaus, H. Braeuninger, P. Friedrich +5
The CERN Axion Solar Telescope (CAST) searches for solar axions employing a 9 Tesla superconducting dipole magnet equipped with 3 independent detection systems for X-rays from axio…
pn-CCDs in a Low-Background Environment: Detector Background of the CAST X-ray Telescope
M. Kuster, S. Cebrian, A. Rodriquez +8
The CAST experiment at CERN (European Organization of Nuclear Research) searches for axions from the sun. The axion is a pseudoscalar particle that was motivated by theory thirty y…
UV to X-ray Spectra of Radio-Quiet Quasars. Comparison With Accretion Disk Models
H. Brunner, C. Mueller, P. Friedrich +3
We present UV to soft X-ray spectra of 31 radio-quiet quasars, comprising data from the IUE ULDA database and the ROSAT pointed observation phase. 90 % of the sample members show a…