Optical and mechanical design of the fore-optics of HARMONI
HARMONI is a visible and near-infrared (0.47μm to 2.5μm) integral field spectrometer providing the E-ELT's core spectroscopic capability. It will provide ~32000...
Optical and mechanical updates in the GREGOR Infrared Spectrograph for simultaneous spectral observations
The GREGOR Infrared Spectrograph (GRIS) can perform spectropolarimetric observations in 1.0-1.8 μm and pure spectroscopic in the band 2.0-2.3 μm. The...
Optical and Near-IR Observations of the Current Outburst of Aql X-1
As part of a monitoring campaign of quiescent and outbursting low-mass X-ray binaries with the CTIO/SMARTS telescopes and the Faulkes telescopes , we report...
We report optical and near-infrared (NIR) observations of the field containing the neutron star X-ray transient XTE J1739-285 (IAUC #7300, ATel #622). The...
Optical and NIR Spectroscopic analysis of OB Stars
OB stars are very active actors shaping their environment and contributing to the chemical and dynamical evolution of their host galaxies. Accurate analyses of...