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The evolution of early-type galaxies in clusters from z~ 0.8 to z~ 0: the ellipticity distribution and the morphological mix
Benedetta Vulcani, Bianca M. Poggianti, Alan Dressler +10
We present the ellipticity distribution and its evolution for early-type galaxies in clusters from z~0.8 to z~0, based on the WIde-field Nearby Galaxy-cluster Survey (WINGS)(0.04<z…
Dark halo response and the stellar initial mass function in early-type and late-type galaxies
Aaron A. Dutton, Charlie Conroy, Frank C. van den Bosch +6
We investigate the origin of the relations between stellar mass and optical circular velocity for early-type (ETG) and late-type (LTG) galaxies --- the Faber-Jackson (FJ) and Tully…
Galaxy Pairs in the Sloan Digital Sky Survey - III: Evidence of Induced Star Formation from Optical Colours
David R. Patton, Sara L. Ellison, Luc Simard +2
We have assembled a large, high quality catalogue of galaxy colours from the Sloan Digital Sky Survey Data Release 7, and have identified 21,347 galaxies in pairs spanning a range…
Automated Morphological Classification of SDSS Red Sequence Galaxies
Judy Y. Cheng, S. M. Faber, Luc Simard +4
(abridged) In the last decade, the advent of enormous galaxy surveys has motivated the development of automated morphological classification schemes to deal with large data volumes…
Superdense massive galaxies in the ESO Distant Cluster Survey (EDisCS)
T. Valentinuzzi, B. M. Poggianti, R. P. Saglia +9
We find a significant number of massive and compact galaxies in clusters from the ESO Distant Clusters Survey (EDisCS) at 0.4<z<1. They have similar stellar masses, ages, sizes and…
The infrared imaging spectrograph (IRIS) for TMT: on-instrument wavefront sensors and NFIRAOS interface
David Loop, Vlad Reshetov, Murray Fletcher +10
The InfraRed Imaging Spectrograph (IRIS) is a first light client science instrument for the TMT observatory that operates as a client of the NFIRAOS facility multi-conjugate adapti…
The Infrared Imaging Spectrograph (IRIS) for TMT: the atmospheric dispersion corrector
Andrew C. Phillips, Brian J. Bauman, James E. Larkin +4
We present a conceptual design for the atmospheric dispersion corrector (ADC) for TMT's Infrared Imaging Spectrograph (IRIS). The severe requirements of this ADC are reviewed, as a…
The infrared imaging spectrograph (IRIS) for TMT: the science case
Elizabeth J. Barton, James E. Larkin, Anna M. Moore +11
The InfraRed Imaging Spectrograph (IRIS) is a first-light instrument being designed for the Thirty Meter Telescope (TMT). IRIS is a combination of an imager that will cover a 16.4"…
The infrared imaging spectrograph (IRIS) for TMT: sensitivities and simulations
Shelley A. Wright, Elizabeth J. Barton, James E. Larkin +4
We present sensitivity estimates for point and resolved astronomical sources for the current design of the InfraRed Imaging Spectrograph (IRIS) on the future Thirty Meter Telescope…
The Infrared Imaging Spectrograph (IRIS) for TMT: Instrument Overview
James E. Larkin, Anna M. Moore, Elizabeth J. Barton +16
We present an overview of the design of IRIS, an infrared (0.85 - 2.5 micron) integral field spectrograph and imaging camera for the Thirty Meter Telescope (TMT). With extremely lo…
Colours of Bulges and Discs within Galaxy Clusters and the Signature of Disc Fading on Infall
Michael J. Hudson, Jeffrey B. Stevenson, Russell J. Smith +3
The origins of the bulge and disc components of galaxies are of primary importance to understanding galaxy formation. Here bulge-disc decomposition is performed simultaneously in B…
On the Evolution of the Velocity-Mass-Size Relations of Disk-Dominated Galaxies over the Past 10 Billion Years
Aaron A. Dutton, Frank C. van den Bosch, S. M. Faber +10
We study the evolution of the scaling relations between maximum circular velocity, stellar mass and optical half-light radius of star-forming disk-dominated galaxies in the context…
Galaxy Pairs in the Sloan Digital Sky Survey - II: The Effect of Environment on Interactions
Sara L. Ellison, David R. Patton, Luc Simard +3
We use a sample of close galaxy pairs selected from the Sloan Digital Sky Survey Data Release 4 (SDSS DR4) to investigate in what environments galaxy mergers occur and how the resu…