Welcome to the Coma Legacy Survey pages at Astro-WISE.
The core of the Coma Legacy survey is an HST ACS Treasury
imaging survey of the core and an infall region of the richest
local cluster of galaxies, Coma. The observations contain
thousands of galaxies down to magnitude g=27.5 and I=26.6. In addition
various ground-based and space-based observing campaigns are
being undertaken at other wavelengths. This will result in a
multi-wavelength public legacy dataset of calibrated data and
Our main scientific objectives are:
- Measurement of the luminosity function of galaxies to
a V band absolute magnitude of -9.
- A study of the structure of the dwarf galaxies, including
scaling laws, nuclear structure and morphology, to compare with
hierarchical and evolutionary models of their formation
- A study of the stellar populations from colours and colour
gradients, and how the internal chemical evolution of galaxies is
affected by interaction with the cluster gaseous and galaxy
- To determine the effect of the cluster environment upon
morphological features, disks, bulges and bars, by comparing
these structure in the Coma sample with field galaxy
- Identification of dwarf galaxy samples for further study with
the new generation of multi-object and integral-field
spectrographs on 8-10 metre class telescopes such as Keck,
Subaru, Gemini, and GTC.
- Study of the photometric properties of the Globular Cluster
systems associated with the bright and faint galaxies of the
This is the first such survey of a nearby rich cluster. It will
provide a key database for studies of galaxy formation and
evolution, and a very needed reference for comparison with
similar galaxy surveys both in lower density environments in the
nearby universe, and in high density environments at high
In addition to HST/ACS images, additional data from ground-
based facilities will be added to the survey, and will be available
in future data releases, including:
An overview of the HST Treasury program of the Coma Legacy Survey is given
in paper I:
Surveys Objectives and Desgin, ApJS in press
and on the Coma Legacy Survey website
See the homepage
of the Coma Cluster HST Treasury program for further details.
The role of the Astro-WISE Information System in the Coma
Legacy Survey is to disseminate the legacy data (ACS and other
auxiliary data and catalogs) and perform surface photometry
analysis of the Coma galaxies. The Astro-WISE homepage is the entry for more
information about Astro-WISE.
||The HST/ACS Coma Cluster Survey. II. Data Description and Source Catalogs: see paper .
||19 May 2010
||Data release 2 of images and catalogs of the HST/ACS Treasury Survey.
Please see ACS data page for data retrieval and release note.
||19 May 2010