Try this interactive page that allows you to identify galaxies with stellar shells in the Illustris simulation.
You might have seen the beautiful shell galaxy below in the Astronomy Picture of the Day and wondered how these shells are formed. I summarize our results in just 14 tweets (or press on the text in the tweet below). If you want to learn more, check our paper here. And try identifying a few shell galaxies at the bottom of the page before you leave!
How do shells form? Through beautiful galaxy mergers! keep on reading for more details & pics! Shell galaxies are relatively common, ~18% of massive galaxies (>6 x 10^12 solar masses) have shells. We used the Illustris cosmological simulation to study them pic.twitter.com/tkJ9PtgDuu— Roxana Pop (@AnaRoxanaPop) February 6, 2018
Note that this page is under construction. Some features might not be available at this time.
Invert Central Entire Mock
Does this galaxy have stellar shells?
Other features than shells? You can identify them or leave us a comment here.