A quasar
jet shines in brilliant colors in this kaleidoscope view taken by a series of
space-based telescopes.
The Hubble,
Chandra and Spitzer space telescopes put their eyes together to record this
look a quasar known as 3C273, which is spewing a jet of high-energy material
that spans some 100,000 light-years. The quasar is about three billion
light-year from Earth towards the constellation Virgo.
First
discovered in 1963, 3C273 – like all other quasars – is among the most
brightest objects in the universe. Hubble visible light observations show up as
green, while Spitzer’s infrared look appears in red. They overlap in the yellow
regions.
The highest
energy areas of the jet were recorded by Chandra’s X-ray camera, and can be
seen in the far left as blue.
Astronomers
used these multiple observations of 3C273 to study how light forms in different
ways. Unlike the Sun, which generates most of its light by fusing hydrogen
atoms together in a process called fusion, the quasar’s jet light stems from
charged particles spiraling through a magnetic field.
The process
is known as synchrotron radiation.
-- SPACE.com Staff
Credit: NASA/JPL-Caltech/Yale Univ
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