Yo Starfriend, I do not know what a shell galaxy is, and while I can guess from the name and the picture, it would be awesome if you could give a description so that the people on this tiny and insignificant speck of stardust can wonder.
Shell galaxies are galaxies with outer shells of dust and gas and stars. Basically they’re characterized by the arcs you see surrounding the underlying galaxy. The structures are three dimensional but not necessarily perfect spheres, which is why “arcs” is a better way to think about it. They are MAYBE a result of galaxy mergers. Also, they happen mostly around elliptical galaxies, and never around spiral galaxies!
Shell galaxies have very amazing and unique shapes. We believe they can be formed by 1 in 3 ways: collisions, companions on radial/nonradial orbits, and mass transfers via rough parabolic encounters.
So I guess I haven’t posted a selfie in a while (or since I got new followers who don’t know who I am). Anyway, this is me. I’m going to do a little bio on this post in case anyone wants to know a little about who runs this blog.
I have an “about me” page but I haven’t updated it in a while.
A few things: I am very girly girl - love makeup, hair, fashion, and cheerleading. My favorite sport to watch by far is basketball. I’m okay at it, I play point guard on a not so competitive league. I love science fiction, so much. My favorite show is X Files and fav movie is Contact. I love being a blond. I like to watch people’s faces when I tell them that I want to be an astrophysicist and all of their stereotyping about me crumbles :) I love this blog and everyone who follows me. I love just about any music I can get my hands on, whether it’s early 50’s Dion & the Belmonts, down south folk, or today’s top 100 (except for justin Bieber). I want to be talking to someone at all times for some reason. I just really like the company even if over text. Message me if you want to talk!!(:
Thanks for anyone who read that whole thing! Oh and that band aid on my arm is from the IV when I went to the hospital after passing out in school. I’m okay, just dehydration! Drink your water, folks!
- An Astronomy Nerd
That’s so funny, because I’m a cheerleader who wants to become a astrophysicist too :)
Sorry, but this week (even though I’m not very diligent on posting these weekly) I decided to a principle/property, so it would be more like “Unpopular Astronomy Principle Of The Week”
This week, the principle is the Holographic Principle.
The Holographic Principle is a complex property that plays a part in string theory, but down to the basic summary of it, the Holographic Principle say that our ENTIRE universe is “painted” on a cosmological horizon (the edge of the universe) via information in the second dimension.
So, according to the Holographic Principle, you, me, and everything else is a projection from a lower dimension.
Sorry for the shortness of this week’s (or more like month’s) Unpopular Astronomy Object Of The Week, I’ll try to make more if people actually like reading these.