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strongmanmike2002 | all galleries >> Awards, discoveries and publications >> Miscellaneous Albums >> Comparisons with images by Hubble and other large telescopes > Shells in Centautus A Halo
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21-JAN-2009 Press F11 for full screen mode

Shells in Centautus A Halo

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The revealing image at the top left was taken by the 4m Blanco telescope at the Cerro Tololo
Inter American Observatory in Chile and was released as recently as October 2002. Through
clever processing it clearly shows the complex system of shells of stars in the extensive
halo of Centaurus A - a result of a galaxy merger in the past.

Many of the faint arcs can also be identified in my image.

Read more here: http://apod.nasa.gov/apod/ap021111.html

See my full colour images here and see if you can make out the shells or arcs:

Wide field: http://www.pbase.com/strongmanmike2002/image/110446969/original

Narrower field: http://www.pbase.com/strongmanmike2002/image/108205041/original


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Robert Lang 31-Jan-2011 21:47
Hi Mike,
regarding shell galaxies and other peculiar southern ellipticals, I note that there has been an recent imaging Atlas of about ~50 Bright elliptical galaxies, many of them southern objects. Most of them show subtle signs of interaction with other galaxies!!
Just "google up" the "Astronomical Journal" website, and find the paper; (year) 2009, AJ, Volume 138, Page 1417 (November 2009 journal)
You can download the .pdf version of this paper to find out how the images were made, but the mini-atlas of elliptical galaxies is accessed via the .htm version of the paper.
For many of these galaxies, these are the first Wide-field and Very Deep images that I am aware of. (mostly there exist only HST images, often focusing only on the very centres of these systems)
Another beautiful imaging atlas of elliptical galaxies can be found at:
//www.astro.yale.edu/obey/galaxies
Now if only we could remove from amateur imagers' brains the unjustified prejudice that E and S0 galaxies are less interesting than spirals!!

cheers, from madbadgalaxyman