Wednesday, May 20, 2009

Collison in the Virgo Cluster?

Here's a shot of the Virgo Cluster of Galaxies from Palomar's 48-inch Samuel Oschin Telescope. Click to enlarge. The image was put out as part of a European Southern Observatory press release on giant elliptical galaxy M87. M87 is the round galaxy just about in the middle of the image.

Here's their caption for the image above:

Image of the Virgo cluster of galaxies taken with the Palomar Observatory 48-inch Schmidt telescope as part of the Digitized Sky Survey 2. The giant elliptical galaxy Messier 87 is seen in the centre, while Messier 84 and 86 are the two bright galaxies forming part of the small group on the centre right of the image. New observations obtained with ESO’s Very Large Telescope have shown that the halo of stars around Messier 87 has been truncated, possibly because of some interaction with Messier 84. The observations also reveal that Messier 87 and 86 are moving towards each other.

You can get a high-resolution TIFF version of the image by clicking here. Warning it is 370 mb! If that is too much for you, you can get different sized jpeg versions here.


Jeff Bytof said...

Are the faint, banded striations in the image an artifact, galactic or extragalactic?

Scott Kardel said...

I believe that they are an artifact, but I will attempt to find out for sure.

Jeff Bytof said...

LOL I just tried to load the large .tiff image and it blew Safari out of the water, even with 5 gigs of memory installed!

Scott Kardel said...

Wow, Jeff! It opens just fine in Photoshop. I would use your "save as" function and not view it in your browser.

By the way the "banded striations" are an artifact of the jpeg compression and are not there at all on the full -sized tiff image.

Mick Hyde said...

This is a fantastic image Scott, thanks for sharing.
It really needs to be seen big though, the print jpeg is a nice compromise.