torn apart approaching the giant elliptical galaxy Centaurus A. The 2,000 light-year long arc is revealed in the upper right corner of this processed color digital image, while the dense central region of Centaurus A is near the bottom. Star clusters that make up the blue arc are likely strung out along the incoming trajectory of the small galaxy and are estimated to be only 200-400 million years old. The remarkable result suggests that astronomers have identified a spectacular example of a kind of galactic cannibalism in progress, a process which is believed to contribute to the formation and evolution of large galaxies, including our own Milky Way. Over time, stars and star clusters in this stream should eventually disperse and merge with tumultuous Centaurus A. The image data was recorded with the four meter Blanco telescope at Cerro Tololo Inter-American Observatory.
1998 1999 2000
2001 2002 2003
2004 2005 2006
2007 2008 2009
2010 2011 2012
2013 2014 2015
2016 2017 2018
2019 2020 2021
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Publikacii s klyuchevymi slovami:
Centaurus A - NGC 5128 - galactic collision - star formation - Centavr A - zvezdoobrazovanie
Publikacii so slovami: Centaurus A - NGC 5128 - galactic collision - star formation - Centavr A - zvezdoobrazovanie
Vse publikacii na tu zhe temu >>