Credit & Copyright: NASA, Hubble Space Telescope
Explanation:
The Cartwheel Galaxy shows a ring that is the result of a
collision between a small and a large galaxy. After a small galaxy has moved
through a big galaxy - in this case one that probably resembled our
own Milky Way - a
star formation wave moves out from the impact point like ripples
across the surface of a pond. When galaxies collide it
is rare that any two stars actually collide. Gravity, however, causes
density waves to move out through the galaxy
which in turn triggers the formation of hot, bright young stars,
producing the ring that we see in this picture.
For more information see NASA, Hubble Space Telescope Scientific Institute press release.
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:
Cartwheel galaxy - взаимодействующие галактики - звездообразование
Публикации со словами: Cartwheel galaxy - взаимодействующие галактики - звездообразование | |
См. также:
Все публикации на ту же тему >> |