Credit & Copyright: L. Kaper et. al. (ESO)
Explanation:
Runaway stars are massive stars
traveling rapidly through interstellar space.
Like a ship plowing through
the interstellar medium,
runaway star HD 77581 has produced this graceful arcing bow wave or "bow
shock" - compressing the gaseous material in its path.
Located near the centre of
this European Southern Observatory photograph,
HD 77581 itself is so bright that it saturates the sensitive camera and
produces the spiky
cross shape.
This star is over 6,000 light-years away in
the constellation Vela, and
appears to move at over 50 miles per second.
What force could set this star in motion?
A clue to the answer may lie in its optically invisible companion star, an
X-ray bright
pulsar known as Vela X-1.
This pulsar is clearly the remnant of
a supernova explosion ...
which seems to have given this massive star and
its companion a mighty kick!
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:
pulsar - runaway star - supernova - Пульсар - Рентгеновский пульсар - взрывы сверхновых - двойная система
Публикации со словами: pulsar - runaway star - supernova - Пульсар - Рентгеновский пульсар - взрывы сверхновых - двойная система | |
См. также:
Все публикации на ту же тему >> | |
