X Rays from the Galactic Core
Explanation:
Using the orbiting
Chandra
X-ray Observatory, astronomers have taken
this long look at the core of our
Milky Way galaxy, some 26,000 light-years away.
The spectacular
false-color view spans about 130 light-years.
It reveals an
energetic region
rich in x-ray sources and
high-lighted by the
central source, Sagittarius A*, known
to be a
supermassive black hole
with 3 million times the
mass
of
the Sun.
Given its tremendous mass, Sagittarius A* is amazingly faint in x-rays
in comparison to central black holes observed in
distant galaxies,
even during its frequent x-ray flares.
This suggests that this supermassive black hole has been
starved
by a lack of infalling material.
In fact, the sharp Chandra image shows clouds of multi-million
degree gas dozens of light-years across flanking
(upper right and lower left) the
central
region -- evidence that violent events have
cleared much material from
the vicinity of the black hole.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.
