Jeremy R. Allington-Smith

The sauron project. I. the panoramic integral-field spectrograph

A new integral-field spectrograph, SAURON, is described. It is based on the TIGER principle, and uses a lenslet array. SAURON has a large field of view and high throughput, and allows simultaneous sky subtraction. Its design is optimized for studies of the stellar kinematics, gas kinematics, and line-strength distributions of nearby early-type galaxies. The instrument design and specifications are described, as well as the extensive analysis software which was developed to obtain fully calibrated spectra, and the associated kinematic and line-strength measurements. A companion paper will report on the first results obtained with SAURON on the William Herschel Telescope.

The Gemini-North Multi-Object Spectrograph: Performance in imaging, long-slit, and multi-object spectroscopic modes

ABSTRACT Results of the commissioning of the first Gemini Multi‐Object Spectrograph (GMOS) are described. GMOS and the Gemini–North telescope act as a complete system to exploit a large 8 m aperture with improved image quality. Key GMOS design features such as the on‐instrument wave‐front sensor (OIWFS) and active flexure compensation system maintain very high image quality and stability, allowing precision observations of many targets simultaneously while reducing the need for frequent recalibration and reacquisition of targets. In this paper, example observations in imaging, long‐slit, and multiobject spectroscopic modes are presented and verified by comparison with data from the literature. The expected high throughput of GMOS is confirmed from standard star observations; it peaks at about 60% when imaging in the \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \use...

A faint galaxy redshift survey to B=24

Using the multislit LDSS-2 spectrograph on the {\it William Herschel Telescope} we have completed a redshift survey in the magnitude range

Ultrafast laser inscription: an enabling technology for astrophotonics

22.5 1

The evolution of galaxies in radio-selected groups

and includes the highest redshift galaxy (

A low-dispersion survey spectrograph (LDSS-2) for the William Herschel Telescope

z=1.108

GMOS: the GEMINI Multiple Object Spectrographs

) yet discovered in a field sample. The median redshift,

Photonic spatial reformatting of stellar light for diffraction-limited spectroscopy

\zmed=0.46

Galaxies under the Cosmic Microscope: A Gemini Multiobject Spectrograph Study of Lensed Disk Galaxy 289 in A2218

, and form of the redshift distribution constitute compelling evidence against simple luminosity evolution as an explanation of the large excess of faint galaxies (

Integral field spectroscopy with the Gemini Multiobject Spectrographs

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