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Астронет: Астрономическая картинка дня Волокна остатка сверхновой в Парусах http://variable-stars.ru/db/msg/1293816/eng |
Credit & Copyright: Angus Lau, Y Van, SS Tong
(Jade Scope Observatory)
Explanation:
The explosion is over but the consequences continue.
About eleven thousand years ago a star in the constellation of
Vela could be seen
to
explode,
creating a strange point of light briefly visible to humans living near the beginning
of
recorded history.
The outer layers of the star crashed into the
interstellar medium, driving a
shock wave that is still visible today.
A roughly spherical, expanding shock wave is
visible in X-rays.
The
above image
captures some of that filamentary and gigantic shock in
visible light.
As gas flies away from the detonated star, it
decays and reacts with the interstellar medium,
producing light in many different colors and energy bands.
Remaining at the center of the
Vela Supernova Remnant is a
pulsar, a star as dense as nuclear matter that rotates completely around
more than ten times in a single second.
Note:
How to follow APOD if the US government shuts down
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.