My pareidolia hits me hard whenever I see the "face" of M86, M84, NGC 4388, NGC 4402 and NGC 4387 (that's the "nose" galaxy)!
But what I find even more fascinating is the fact that huge elliptical galaxy M86 is stealing gas from nearby battered spiral NGC 4438 (one of the "Eyes" galaxies, the one with a bluish disk).
The image above is from A Spectacular H$\alpha$ Complex in Virgo: Evidence for a Collision Between M86 and NGC 4438 and Implications for Collisional ISM Heating of Ellipticals
by Jeffrey D. P. Kenney et al. Go here
to read about it.
And I may as well use up all my three attachments:
The above image was taken by Patrick Dufour. This is what he wrote about his picture:
During a search to learn more about this Virgo galaxy cluster, I came across a research that highlighted the collision of the giant galaxy M86 and its neighbor NGC 4438 (http: //www.astro
. yale.edu/kenney/pages/projects.html). On the majority of images taken in color by amateurs, we cannot see this interaction other than by acquiring images in the H-Alpha band. That said, the signal is so weak that even 30-minute exposures barely make a noticeable difference. But clearly, large professional telescopes are able to get this information and I challenged myself to take as many exposures as necessary to bring out the phenomenon. Here is after almost 30 hours of exposures only in H-Alpha spread over a long period given a short presence in the sky of Chile since the month of May.
Let's finish with another APOD, this one by Mark Hanson from August 14, 2018
Nice, isn't it?
But according to the caption, the red bridge of gas between NGC 4438 and M86 may just be foreground high-altitude galactic cirrus in our galaxy! But honestly, isn't that too much of a coincidence that a bridge of gas connecting a spiral galaxy and a faintly red-glowing elliptical galaxy would be just foreground cirrus, completely unconnected to the galactic spectacle millions of light-years behind it?
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