Credit & Copyright: Davide De Martin (Skyfactory)
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 much of that filamentary and gigantic shock in
visible light,
spanning almost 100
light years
and appearing twenty times the diameter of the
full moon.
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 completely rotates
more than ten times in a single second.
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
Январь Февраль Март Апрель Май Июнь Июль Август Сентябрь Октябрь Ноябрь Декабрь |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
|
Публикации с ключевыми словами:
Vela - supernova remnant - остаток Сверхновой - Паруса
Публикации со словами: Vela - supernova remnant - остаток Сверхновой - Паруса | |
См. также:
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