A survey for DLA galaxies with integral field spectroscopy

Sauron: Integral-field Spectroscopy of Galaxies

We present the first results from a new and unique integral-field spectrograph, SAURON. Based upon the TIGER concept, SAURON uses a lens array to obtain two-dimensional spectroscopy with complete spatial coverage over a field of 33 ′′ × 41 ′′ in low-resolution mode (0. ′′ 94 lenslets) and of 9 ′′ × 11 ′′ in high-resolution mode (0. ′′ 26 lenslets). The spectra cover the wavelengths from 4800Å t...

Integral Field Spectroscopy of Extended Ly α Emission from the DLA Galaxy in Q 2233 + 131

This paper presents observations of an extended Lyman-α emission nebula surrounding the galaxy responsible for the Damped Lyman-α Absorption (DLA) line in the spectrum of the quasar Q2233+131. With the Potsdam Multi Aperture Spectrophotometer (PMAS) we measure the properties of the extended Lyα emission in an area of 3×5 having a total line flux of (2.8± 0.3)× 10 erg cm s, which at redshift z =...

Dust obscuration of DLA galaxies

We show that the extinction of quasar absorbers increases exponentially with the logarithmic column density of any volatile metal (e.g. zinc), with a charateristic turning point above which the quasars are severely dimmed. We derive the relation between extinction, HI column density (NHI), metallicity (Z ≡ NZnII/NHI) and fraction of iron in dust [fFe(Z)] in Damped Lyman α (DLA) systems. We use ...

Integral-Field Spectroscopy of High-Redshift Galaxies: Implications for Galaxy Evolution

Predictions and Strategies for Integral-field Spectroscopy of High-redshift Galaxies

We investigate the ability of infrared integral-field spectrographs to map the velocity fields of high redshift galaxies, presenting a formalism which may be applied to any telescope and imaging spectrograph system. We discuss the 5σ limiting line fluxes which current integral-field spectrographs will reach, and extend this discussion to consider future large aperture telescopes with cryogenica...