Hubble solves the 40-year-old mystery of the Magellanic Stream
2013-08-12 0:00

By Katie Collins | Ars Technica



The origins of a mysterious ribbon of gas that stretches nearly halfway around the Milky Way has been discovered by astronomers using the Hubble Space Telescope.

Ever since its discovery 40 years ago, astronomers have wondered where the Magellanic Stream originated. And now they have their answer. The stream was, for the most part, stripped from the Small Magellanic Cloud around two billion years ago.

The Small Magellanic Cloud is one of the dwarf galaxies that orbit our own. Computer models had predicted that the stream had been torn entirely from the smaller cloud, which is why astronomers were surprised to discover that a small part of the Magellanic Stream was also torn more recently from the larger of the Magellanic Clouds.

The sources were finally determined by using Hubble’s Cosmic Origins Spectrograph and the European Southern Observatory’s Very Large Telescope. Along most of the stream, the team found low abundances of oxygen and sulphur that correlated with levels found in the Small Magellanic Cloud two billion years ago. The composition of an inner region of the stream, however, was found to be full of heavy elements that made it more consistent with the Large Magellanic Cloud.

[...]

Read the full article at: arstechnica.com








Related Articles
Origin of Magellanic Stream that Wraps Halfway Around Milky Way Discovered
There’s a mysterious glow in this galaxy
Infinity Symbol of Dense Gas Observed at the Centre of the Milky Way Galaxy
Bubbles of Energy Are Found in Galaxy


Latest News from our Front Page

Facebook completes first drone flight above UK, Mark Zuckerberg confirms
2015-03-28 3:15
Solar powered drones which provide internet access to rural and remote areas have been trialled in UK for first time by Facebook. They “have a wingspan greater than a Boeing 737 but will weigh less than a car”, according to the social network's chief Mark Zuckerberg. The drones, developed by Somerset-based company Ascenta which Facebook bought last March, will beam down laser-guided ...
300 Young English Girls (and a few Boys) Groomed and Assaulted by Oxfordshire "Gangs," Report Finds
2015-03-28 2:04
Editor's note: This story is a few days old now but the echoes of Rotherham just keeps coming. A few weeks ago there was Halifax, now Britain proudly can add Oxfordshire to their line up of diversity success stories. Below is the story from the telegraph: Serious case review finds failings by police and social services as it identifies hundreds of victims A ...
British POW describes the horror of the bombing of Dresden
2015-03-28 0:33
Partial Transcript of Interview with Victor Gregg, WW2 British solder and POW: Interviewer: "Tell us how it was that you were in Dresden at that time." Victor Gregg: "It was evil....thousands of firebombs dropping all over the place, heat, fire, people screaming, people burning, people alight. After about half an hour it started developing into something that was really bad....It was ...
Rape of 285,000 German Women at the End of WWII Trigger Damage Control by Mainstream Media
2015-03-27 20:25
Is Exposing Allied War Crimes an honorable act? No, it’s slandering heroes according to Daily Mail A recent article from the Daily Mail that pretends to look at the post WWII crimes and rapes of the Allies against the German people is actually damage control. It’s really an attempt to divert away from the true horrors that was visited upon Germany ...
Minister of Migration attacked by asylum seeker with fire extinguisher
2015-03-27 2:12
Sweden’s Minister of Justice & Migration also known as Morgan “only 1%” Johansson, has been attacked with a fire extinguisher when he visited an asylum home for future Swedes. Regional newspaper, Kristiandstadsbladet reported that a man who had been living at the home for a couple of weeks grabbed a fire extinguisher and sprayed foam all over the minister who didn’t ...
More News »