The VST Early-type GAlaxy Survey (VEGAS) data release 1
E. Iodice, M. Spavone, M.A. Raj, M. Capaccioli, M. Cantiello, VEGAS, science team

TL;DR
The VEGAS DR1 provides deep, multi-band imaging of 10 galaxy groups and clusters, enabling detailed studies of galaxy outskirts, intra-cluster light, globular clusters, and ultra-diffuse galaxies at very faint surface brightness levels.
Contribution
This is the first data release of VEGAS, offering high-quality mosaics that facilitate new research on galaxy structure, formation, and low-surface brightness features.
Findings
Detection of intra-cluster light and faint features
Estimation of stellar halo mass assembly
Identification of ultra-diffuse galaxies
Abstract
We present the first data release (DR1) of the VST Early-type GAlaxy Survey (VEGAS). This is a deep multi-band (u'g'r'i') imaging survey, carried out with the ESO VLT Survey Telescope (VST). To date, using about 90% of the total observing time, VEGAS has already collected 43 targets (groups and clusters of galaxies) covering a total area on the sky of about 95 square degrees. Taking advantage of the wide (1 deg^2) field-of-view of OmegaCAM@VST, the long integration time and the wide variety of targets, VEGAS has proven to be a gold mine to explore the structure of galaxies down to the faintest surface brightness levels of about 27-30 mag/arcsec^2 in the SDSS g' band, for the dense clusters of galaxies and for the unexplored poor groups of galaxies. Based on the analysed data, VEGAS allowed us to i) study the galaxy outskirts, detect the intra-cluster light and low-surface brightness…
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Taxonomy
TopicsGeophysics and Gravity Measurements · Solar and Space Plasma Dynamics · Geomagnetism and Paleomagnetism Studies
