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Small Snack for Milky Way: Astrophysicists Find New Remnants of Neighboring Galaxy in Our Own
Science Daily ^ | 2-3-2011 | Staff

Posted on 02/03/2011 7:24:52 PM PST by Red Badger

An international team of astronomers led by Mary Williams from the Astrophysical Institute Potsdam (AIP) has discovered a new stream of stars in our Milky Way: the "Aquarius Stream," named after the constellation of Aquarius. The stream of stars is a remnant of a smaller galaxy in our cosmic neighbourhood, which has been pulled apart by the gravitational pull of the Milky Way about 700 million years ago. The discovery is a result of the measurement of the velocities of 250,000 stars with the RAVE Survey based at the Australian Astronomical Observatory's UK Schmidt Telescope at Siding Spring Observatory, NSW, Australia."I have a stream": with these words the 33-year old scientist from New Zealand enthusiastically presented her discovery to the audience of an international conference. The Aquarius stream was indeed hard to find. Contrary to practically all known streams of stars it is located within the galactic disk. Within the disk, the high concentration of stars of the Milky Way are blocking our way and the stream is indistinguishable from the rest of the stars in its shape. "It was right on our doorstep" Williams says, "but we just couldn't see it." Using RAVE data, the astronomer has now measured the radial velocity of 12,000 stars in that region for the first time. In this way she found that 15 stars show a different velocity pattern than the others, ...

(Excerpt) Read more at sciencedaily.com ...


TOPICS: Culture/Society; Technical
KEYWORDS: astronomy; catastrophism; space; stars; telescope; xplanets
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To: grey_whiskers

;’)


21 posted on 02/05/2011 4:02:36 AM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
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To: Red Badger; eclecticEel; saundby; Ernest_at_the_Beach; SunkenCiv; KoRn; grey_whiskers

Pinging everyone who made a serious comment on this thread to thank you for your input.

I read these any time I see them and rarely comment because of my ignorance on the subject. I consider it all part of God’s grand design and no, I do not think the universe is only 6,000 years old.

Somebody I’ve pinged has the “godsgravesglyphs” ping list, please add me and I promise that, while I may not add to the serious discussions, I will do my best to not add any “joke” comments. If astronomy is a different list, put me on that one too. If and when I ask a question, it may sound stupid but it won’t be intentional.

By the way, my grand daughter got me interested in this a few years back, she’s a member here too, as are 2 of my sons, we are an F.R. family.


22 posted on 02/05/2011 6:13:28 AM PST by Graybeard58
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To: Graybeard58

Thanks, I’ll add you to GGG and X-Planets, and I can take some joking. In fact, I’m as often as not one of the guilty parties. ;’) At least no one has made a Uranus joke yet, such as, “this explains the dark rings around Uranus”. Oh, sorry.


23 posted on 02/05/2011 6:48:36 AM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
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To: SunkenCiv

I’m no “stick in the mud” either, I can take some of the joke comments but “Bush’s fault”, “Palin’s fault” really gets old, time after time, thread after thread.


24 posted on 02/05/2011 7:17:54 AM PST by Graybeard58
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To: Graybeard58
“Bush’s fault”, “Palin’s fault” really gets old, time after time, thread after thread.

I love a good joke but these aren't jokes. They are so overdone that it is ridiculous.

25 posted on 02/05/2011 9:45:09 AM PST by Eaker (The problem with the internet, you're never sure the accuracy of the quotes. ~ Abraham Lincoln, 1865)
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To: Graybeard58

Sunkenciv has the GGG PING LIST and Kevin Davis, IIRC, has the Space Ping list.........


26 posted on 02/05/2011 1:25:47 PM PST by Red Badger (Whenever these vermin call you an 'idiot', you can be sure that you are doing something right.)
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To: Red Badger; KevinDavis
Thanks, I have been added to Sunkenciv's list and am pinging Kevin Davis with this reply, to be added to his.
27 posted on 02/05/2011 1:34:14 PM PST by Graybeard58 (Of course Obama loves his country. The thing is, Sarah loves mine.)
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To: eclecticEel
Call me skeptical, but any large data set will have outliers. And what's with the image anyway? If there's only 15 discovered members in this steam of stars (if it exists at all) why do I see several hundred stars locations depicted?

Good points. Some of the data may be correct but they are so quick to decide what causes something unusual. They then talk about their conclusion as though it is fact and the only possible reason for the anomaly. We really know so little about the operations of universe that we do not have a right to draw quick conclusions and pronounce them as near facts/facts.

28 posted on 11/17/2011 4:44:29 PM PST by Bellflower (Judas Iscariot, first democrat, robber, held the money bag, claimed to care for poor: John 12:4-6)
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To: Red Badger

#OccupyMilkyWay!


29 posted on 11/17/2011 4:45:30 PM PST by COBOL2Java (Obama is the least qualified guy in whatever room he walks into.)
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To: saundby
We need a filter to drop out the jokers and Helen Thomas pics on science and tech threads.

Or maybe two categories within a science thread. One choice to post or click onto the serious category and a second choice to post or click unto the fun category. I often get a little frustrated trying to search for the serious stuff but must admit end up chuckling at some of the fun stuff.

30 posted on 11/17/2011 4:48:11 PM PST by Bellflower (Judas Iscariot, first democrat, robber, held the money bag, claimed to care for poor: John 12:4-6)
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