Most galaxies in the universe are classified into
three forms: elliptical, disc-and usually flattened, and irregular spiral arms. That
is so strange Leda 074886, a dwarf galaxy that is about 70 million light years
from Earth is rectangular or, as astronomers have discovered, like a bright
emerald.
"It's one of those things that just make you smile because it should not
exist or, rather, did not expect to exist," says Alsiter Graham (Swinburne
University of Technology in Melbourne, Australia), lead researcher.
Scientists had noted the Japanese Subaru telescope (primary mirror 8.2 meters
in diameter and located in the Mauna Kea Observatory in Hawaii) to a cluster of
stars that are around the giant galaxy NGC 1407, and on the edge image using a
camera, were equivalent to a wide angle photo-discovered the strange
rectangular galaxy.
Graham and colleagues from Australia, Germany, Switzerland and Finland present
their discovery in the journal Astrophysical Journal, in an article entitled
precisely Leda 074886 is a striking rectangular galaxy, according to
the National Astronomical Observatory of Japan.
Leda 074886 is not easy to see because it is very bright, given its low
intrinsic brightness. It has 50 times fewer stars than the Milky Way and
the distance that the Earth is equivalent to line up one after another, 700
galaxies like ours, which is about 100,000 light years across, say the makers
of Subaru.
Astronomers have proposed the reason for this unexpected star of the whole
rectangular shape, which, they acknowledge, may have much to do with the focus
that has seen from Earth. "One possibility is to be formed by the
collision of two spiral galaxies, so that stars existed in them remain
distributed in the orbits thus creating major diamond cutting, while the gas is
concentrated in the median plane where condensed to form our star and the disk
we see, "said Duncan Forbes, also of Swinburne University.
"Maybe when our Milky Way disc shaped collision with the Andromeda galaxy,
in about 3,000 million years, end up belonging to a rectangular-looking
galaxy," say the scientists from Subaru.
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