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View Full Version here: : Sky Watcher spies gassy cosmic ghost


Amy
07-08-2008, 11:30 AM
Here's the link to the thread....

http://news.aol.com/article/sky-watcher-spies-gassy-cosmic-ghost/119539

Here are the pictures from the article

http://o.aolcdn.com/dims-photohub/dims/NEWS/1/408/272/60/http://o.aolcdn.com/photo-hub/news_gallery/5/6/567317/1218038526219.JPEG

The green object above was first spotted by Hanny van Arkel, a Dutch teacher and amateur astronomer. What is it? Scientists aren't sure, but it consists of gas and contains no stars. "What we saw was really a mystery," said Kevin Schawinski, an astrophysicist at Yale University. Some have called it a "cosmic ghost."

http://o.aolcdn.com/dims-photohub/dims/NEWS/1/618/412/60/http://o.aolcdn.com/photo-hub/news_gallery/5/6/567318/1218038771854.JPEG

Van Arkel came across the object while volunteering for Galaxy Zoo, an effort to classify galaxies. The cosmic ghost is visible thanks to light from a galaxy called IC 2497, Schawinski said. Above is Messier 101, a spiral galaxy.

http://o.aolcdn.com/dims-photohub/dims/NEWS/1/618/412/60/http://o.aolcdn.com/photo-hub/news_gallery/5/6/567316/1218038406488.JPEG

Researchers plan to use the Hubble Space Telescope to try to glean more information about the cosmic ghost, which has been named "Hanny's Voorwerp" after its discoverer. Voorwerp is the Dutch word for "object." Source: Reuters


And here's the article copied and pasted in case the link is ineffective:
(I've discovered the links don't seem to last long)

CHICAGO (Aug. 5) - A Dutch primary school teacher and amateur astronomer has discovered what some are calling a "cosmic ghost," a strange, gaseous object with a hole in the middle that may represent a new class of astronomical object.
The teacher, Hanny van Arkel, discovered the object while volunteering in the Galaxy Zoo project, which enlists the help of members of the public to classify galaxies online.
"At first, we had no idea what it was. It could have been in our solar system, or at the edge of the universe," Yale University astrophysicist Kevin Schawinski, a member and co-founder of the Galaxy Zoo team, said in a statement.
The find, nicknamed "Hanny's Voorwerp" (Dutch for object), soon had scientists training their telescopes on the object.
"What we saw was really a mystery," Schawinski said. "The Voorwerp didn't contain any stars."
Made entirely of very hot gas, the eerie green object is illuminated by remnant light from the nearby galaxy IC 2497.
"We think that in the recent past the galaxy IC 2497 hosted an enormously bright quasar," Schawinski said.
He said light from the past still illuminates the ghostly object, even though the quasar shut down some 100,000 years ago and the galaxy's black hole went quiet.
"It's this light echo that has been frozen in time for us to observe," said Chris Lintott, a co-organizer of Galaxy Zoo at Oxford University in the United Kingdom, said in a statement.
Researchers will soon use the Hubble Space Telescope to get a closer look.
"It's amazing to think that this object has been sitting in the archives for decades and that amateur volunteers can help by spotting things like this online," van Arkel said in a statement.
Van Arkel is one of more than 150,000 amateur astronomers who have assisted in classifying more than 1 million galaxies over the past year as part of the Galaxy Zoo project.
The next stage of Galaxy Zoo will ask volunteers to search for more unusual astronomical objects.
Galaxy Zoo can be found at www.galaxyzoo.org .
(Editing by Jackie Frank)
Copyright 2008, Reuters
2008-08-05 15:51:18

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I think those first two pictures are awesome! Now...did they give enough info where y'all can find this, too? I'd love to see more pictures!

Kal
07-08-2008, 01:19 PM
Fascinating find! It amazes me how there can be so many telescopes imaging the sky, and things like this are still out there waiting to be discovered!

madtuna
07-08-2008, 03:54 PM
Great article Amy..tah for posting :thumbsup:
that pic in your link was taken by a 2.5 metre telescope in the Canary Islands, a tad bigger than my humble 8" one

Amy
07-08-2008, 08:39 PM
I thought I was including the images rather than the links to the images but at least they're there. They showed as I hit post. I see an insert image icon so guess I'll try that route next time.

So does the article give enough info so that folks can gaze in the right direction of this and capture some more images? I'd love to see more...tho yeah the Hubble telescope is the better way to go. lol. At the same time I've seen some amazing images from this forum's members. :)

What I thought was rather interesting is that the area where the cosmic ghost was found was void of stars.

Jen
07-08-2008, 11:25 PM
:eyepop: thats a cool pic :thumbsup:

Kal
07-08-2008, 11:45 PM
Nice capture Steve! When did you image that one?

madtuna
08-08-2008, 06:58 PM
wish I could take credit for it but alas..I just flogged the pic off the net to give an idea where it's located

Ric
08-08-2008, 10:33 PM
What a fascinating object, thanks for the links Amy.

As Kal said it is amazing what is still out there waiting to be discovered.