NGC 7679: an anomalous, composite Seyfert 1 galaxy whose X-ray luminous AGN vanishes at optical wavelengths
ASTRONOMY & ASTROPHYSICS 447:2 (2006) 441-451
On the evolution of the black-hole:spheroid mass ratio
NEW ASTRONOMY REVIEWS 50:9-10 (2006) 782-785
Opto-mechanical design of the KMOS spectrograph module - art. no. 62694G
P SOC PHOTO-OPT INS 6269 (2006) G2694-G2694
Abstract:
We present the optical and mechanical design of the KMOS spectrograph module together with a detailed analysis of its performance. KMOS is a cryogenic near-infrared multi-object spectrograph being developed as a second-generation instrument for the VLT by a consortium of UK and German institutes. Three identical spectrograph modules provide Nyquist sampled spectra in the wavelength range covering the atmospheric bands z, J, H, and K with a resolving power exceeding 3200. The spectrographs are fully achromatic over the bands and the single mirror collimator and six-element camera, together with six high efficiency gratings provide high throughput. The optical performance analysis includes amongst others the spectral resolving power and variation of the PSF as a function of the pupil illumination.Origin of the counterrotating gas in NGC 1596
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 370:3 (2006) 1565-1572
Probing the low-luminosity X-ray luminosity function in normal elliptical galaxies
ASTROPHYSICAL JOURNAL 652:2 (2006) 1090-1096