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Host Galaxies of Luminous Quasars: Structural Properties and the Fundamental Plane
Marsha J. Wolf, Andrew I. Sheinis
We present stellar velocity dispersion measurements in the host galaxies of 10 luminous quasars (M_V < -23) using the Ca H&K lines in off-nuclear spectra. We combine these data wit…
Small Solutions to the Large Telescope Problem: A Massively Replicated MEMS Spectrograph
Nicholas Konidaris, Joel Kubby, Andrew Sheinis
In traditional seeing-limited observations the spectrograph aperture scales with telescope aperture, driving sizes and costs to enormous proportions. We propose a new solution to t…
MEMS-based Speckle Spectrometer
A. I. Sheinis, L. Nigra, M. Q. Kuhlen
We describe a new concept for a MEMS-based active spatial filter for astronomical spectroscopy. The goal of this device is to allow the use of a diffraction-limited spectrometer on…
The Integral Field Unit for the Echellette Spectrograph and Imager at Keck II
A. I. Sheinis
We report on the design, development and commissioning of an Integral Field Unit (IFU) that has been built for the Echellette Spectrograph and Imager (ESI) at the W.M. Keck Observa…
The NIR Upgrade to the SALT Robert Stobie Spectrograph
Andrew I. Sheinis, Marsha J. Wolf, Matthew A. Bershady +3
The near infrared (NIR) upgrade to the Robert Stobie Spectrograph (RSS) on the Southern African Large Telescope (SALT), RSS/NIR, extends the spectral coverage of all modes of the v…
Keck Spectroscopy of 4 QSO Host Galaxies
J. S. Miller, A. I. Sheinis
We present optical spectroscopy of the host galaxies of 4 QSO's: PG1444+407, PKS 2349-147, 3C 323.1, and 4C 31.63 having a redshift range (0.1 < z < 0.3). The spectra were obtained…
ESI, a new Keck Observatory echellette spectrograph and imager
A. I. Sheinis, M. Bolte, H. W. Epps +5
The Echellette Spectrograph and Imager (ESI) is a multipurpose instrument which has been delivered by the Instrument Development Laboratory of Lick Observatory for use at the Casse…
Spatially resolved spectroscopy of emission-line gas in QSO Host galaxies
Andrew Sheinis
We present off-nuclear spectra of 3 radio loud QSO's, 3C249.1, 3C273 and 3C323.1., taken with the echellette spectrograph and imager (ESI) at Keck observatory. From these spectra w…
Performance characteristics of the new Keck Observatory echelle spectrograph and imager
A. I. Sheinis, J. Miller, M. Bolte +1
The Echelle Spectrograph and Imager (ESI) is a multipurpose instrument which has been delivered by the Instrument Development Laboratory of Lick Observatory for use at the Cassegra…