• Something mysterious is killing 11,000 nearby galaxies
    58 replies, posted
[url]http://www.businessinsider.com/ram-pressue-stripping-killing-11000-nearby-galaxies-2017-1[/url] [url]http://www.icrar.org/galaxy-murder-mystery/[/url] [url]http://s3-ap-southeast-2.amazonaws.com/icrar.org/wp-content/uploads/2016/12/11085410/Ram-Pressure-Stripping-Paper.pdf[/url] [IMG]http://s3-ap-southeast-2.amazonaws.com/icrar.org/wp-content/uploads/2016/12/11082737/GALAXY-STRIPPING-1-1024x1024.jpg[/IMG] [QUOTE]New research published January 17, 2017 by a global team of researchers focused on 11,000 relatively nearby galaxies and asked why their gas — their lifeblood for the formation of new stars — is being violently stripped away on a widespread scale. The answer, according to these scientists, relates to the great halos of dark matter thought to surround galaxies and paints a picture of these galaxies falling through these larger halos, having their star-forming gas removed in a fast-acting process called ram-pressure stripping. The study – published in the peer-reviewed journal Monthly Notices of the Royal Astronomical Society – was based at the International Centre for Radio Astronomy Research (ICRAR) in Australia. It shows that the phenomenon is more prevalent than previously thought and that it drives gas from galaxies, sending them to an early death by depriving them of the material to make new stars. Toby Brown, a PhD candidate at ICRAR and Swinburne University of Technology, led the study. He said: "During their lifetimes, galaxies can inhabit [dark matter] halos of different sizes, ranging from masses typical of our own Milky Way to halos thousands of times more massive. As galaxies fall through these larger halos, the superheated intergalactic plasma between them removes their gas in a fast-acting process called ram-pressure stripping. You can think of it like a giant cosmic broom that comes through and physically sweeps the gas from the galaxies."[/QUOTE] [sp]the tyranids are coming, may the emperor protect us.[/sp]
Someone released the W'rkncacnter...
Hurry up, please.
Cool.
Sensationalist Headlines is trying to kill me.
Please note that gas being stripped is not a new phenomenon ([url]https://en.wikipedia.org/wiki/Ram_pressure[/url]) but the study implies there's more of it than there should be for the interstellar medium. Also, it's not violently being stripped - it happens on timescales of tens of millions of years.
[QUOTE=Disseminate;51730477]Please note that gas being stripped is not a new phenomenon ([url]https://en.wikipedia.org/wiki/Ram_pressure[/url]) but the study implies there's more of it than there should be for the interstellar medium. Also, it's not violently being stripped - it happens on timescales of tens of millions of years.[/QUOTE] Yeah but for galaxies that's pretty much a matter of few minutes at most.
Shit, who summoned Shub-Niggurath?
Oh god, the Reapers are coming.
[IMG]http://astro-staff.uibk.ac.at/~hydroskiteam/pictures/moviesundpics/pics/ab_09_08/rps_tommy.jpg[/IMG] that's completely nuts, i didn't even know this was a phenomenon
They call him...Galactus
What if this were a unlimited number of Von-neumann drones?
We are all doomed! The end is nigh!
Ah, yes. "Reapers." We have dismissed that claim.
Fucking Broly
Sure, you could run with the official ram pressure explanation, but it could also be an expanding k-2 civilization's dyson swarms.
Isn't this the scrapped plot of ME3
demon sultan azathoth
Kind of spooky, but not really anything to be worried about. It's an interesting phenomenon though and I hope we'll get a nice answer to the questions as to why this is happening. The universe is absolutely amazing.
[QUOTE=Kahgarak;51730463]Someone released the W'rkncacnter...[/QUOTE] The Jjaro will save us
11,000 Galaxies, that's a lot of potential lifeforms.
[QUOTE=ROFLBURGER;51731010]11,000 Galaxies, that's a lot of potential lifeforms.[/QUOTE] And a hilariously small number in the grand scheme of things. Pretty interesting news.
It's the liberals and the liberal media doing this. They hate the galactic race and want us to all be one big universe with no galaxies in it. This is why I voted Trump.
[QUOTE=!LORD M!;51730541]We are all doomed! The end is nigh![/QUOTE] yeah but apparently because what Trump said though. Alien frackers maybe?
clealy thanos
Huh. I wonder how antigravity theory handles this. [sp]Basically it postulates that antimatter has a negative gravity sign, and that dark matter halos (and all dark matter) are actually gravitational dipoles created by virtual particle-antiparticle pairs. While usually randomly oriented, when a body of matter is "submerged' in the vacuum of space the dipoles would create halos of gravity pointing at the mass like a compass. This theory is gaining traction, with some strong proponents at CERN.[/sp]
Insane. How does it exactly work? Its amazing that despite the large numbers, 11,000 galaxies is really small in context to the freaking universe! [QUOTE=Arbys Watcher;51730508]Oh god, the Reapers are coming.[/QUOTE] Please, we all know who it really is... [IMG]http://tfwiki.net/mediawiki/images2/b/b4/Transformers_Covenant_of_Primus_Unicron.jpg[/IMG]
This is clearly the work of Unicron.
[QUOTE=Disseminate;51730477]Please note that gas being stripped is not a new phenomenon ([url]https://en.wikipedia.org/wiki/Ram_pressure[/url]) but the study implies there's more of it than there should be for the interstellar medium. Also, it's not violently being stripped - it happens on timescales of tens of millions of years.[/QUOTE] That's a blink of an eye in terms of the age of galaxies, let alone the universe. Like, Jesus Christ that's quick. [editline]26th January 2017[/editline] Thankfully this only seems to be the case with galaxies with a thicker dark matter halo around them, as our galaxy is painfully average in nearly every regard as far as we know.
So what happens to the gas it sweeps away after?
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