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Space Telescope Science Institute Office of Public Outreach
Astronomers Release Most Complete Ultraviolet-Light Survey of Galaxies in the Local Universe
To piece together a more complete picture of star birth, astronomers
have used the Hubble Space Telescope to look at star formation among
galaxies in our own cosmic back yard. The survey of 50 galaxies in the
local universe, called the Legacy ExtraGalactic UV Survey (LEGUS), is the
sharpest, most comprehensive ultraviolet-light look at nearby star-
forming galaxies.
The LEGUS survey combines new Hubble observations with archival
Hubble images for star-forming spiral and dwarf galaxies, offering a
valuable resource for understanding the complexities of star formation
and galaxy evolution. Astronomers are releasing the star catalogs for
each of the LEGUS galaxies and cluster catalogs for 30 of the galaxies, as
well as images of the galaxies themselves. The catalogs provide detailed
information on young, massive stars and star clusters, and how their
environment affects their development.
The local universe, stretching across the gulf of space between us and
the great Virgo cluster of galaxies, is ideal for study because astronomers
can amass a big enough sample of galaxies, and yet, the galaxies are
close enough to Earth that Hubble can resolve individual stars. The survey
will also help astronomers understand galaxies in the distant universe,
where rapid star formation took place.
LEGUS
http://hubblesite.org/copyright/
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