M31 Globular Clusters: Colors and Metallicities
- P. Barmby, J. Huchra, J. Brodie, D. Forbes, L. L. Schroder, C. Grillmair
- Physics
- 9 November 1999
We present a new catalog of photometric and spectroscopic data on M31 globular clusters (GCs). The catalog includes new optical and near-infrared photometry for a substantial fraction of the 435…
An Extremely Luminous Panchromatic Outburst from the Nucleus of a Distant Galaxy
Multiwavelength observations of a unique γ-ray–selected transient detected by the Swift satellite, accompanied by bright emission across the electromagnetic spectrum, and whose properties are unlike any previously observed source are presented.
Properties of Globular Cluster Systems in Nearby Early-Type Galaxies
- S. Larsen, J. Brodie, J. Huchra, D. Forbes, C. Grillmair
- Physics
- 21 February 2001
We present a study of globular clusters (GCs) in 17 relatively nearby early-type galaxies, based on deep F555W and F814W images from the Wide Field Planetary Camera 2, on board the Hubble Space…
Accreted versus in situ Milky Way globular clusters
- D. Forbes, T. Bridges
- Physics
- 25 January 2010
A large, perhaps dominant fraction, of the Milky Way’s halo is thought to be built-up by the accretion of smaller galaxies and their globular cluster (GC) systems. Here we examine the Milky Way’s GC…
The WiggleZ Dark Energy Survey: survey design and first data release
- M. Drinkwater, R. Jurek, H. Yee
- Physics
- 22 November 2009
The WiggleZ Dark Energy Survey is a survey of 240 000 emission-line galaxies in the distant Universe, measured with the AAOmega spectrograph on the 3.9-m Anglo-Australian Telescope (AAT). The primary…
A catalogue and analysis of local galaxy ages and metallicities
- A. Terlevich, D. Forbes
- Physics
- 18 October 2001
We have assembled a catalogue of relative ages, metallicities and abundance ratios for about 150 local galaxies in field, group and cluster environments. The galaxies span morphological types from cD…
Ellipticals with Kinematically Distinct Cores: V – I Color Images with WPFC2
- C. Carollo, M. Franx, G. Illingworth, D. Forbes
- Physics
- 28 January 1997
We have analyzed Hubble Space Telescope WFPC2 F555W and F814W (i.e., V and I) images for 15 elliptical galaxies with kinematically distinct cores. For each of them, we have derived surface brightness…
Early-type galaxies at large galactocentric radii: II. Metallicity gradients and the [Z/H]-mass, [α/Fe]-mass relations
- M. Spolaor, C. Kobayashi, D. Forbes, W. Couch, G. Hau
- Physics
- 9 June 2010
We present the results of a study of stellar population properties at large galactocentric radii of 14 low-mass early-type galaxies in the Fornax and Virgo clusters. We derive radial profiles of Age,…
Structural Parameters for Globular Clusters in M31 and Generalizations for the Fundamental Plane
- P. Barmby, D. McLaughlin, W. Harris, G. Harris, D. Forbes
- Physics
- 16 April 2007
The structures of globular clusters (GCs) reflect their dynamical states and past histories. High-resolution imaging allows the exploration of morphologies of clusters in other galaxies. Surface…
THE MASS–METALLICITY GRADIENT RELATION OF EARLY-TYPE GALAXIES
- M. Spolaor, R. Proctor, D. Forbes, W. Couch
- Physics
- 5 January 2009
We present a newly observed relation between galaxy mass and radial metallicity gradients of early-type galaxies. Our sample of 51 early-type galaxies encompasses a comprehensive mass range from…
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