"Impossible" Star seen by Euro space telescope
2010 05 14
A vast hole in space has been unexpectedly discovered in a part of the universe thought to be packed with a cloud of dense gas and dust – the latest in a string of cosmic finds by the European Herschel infrared space telescope.
The surprising hole in space has provided astronomers with a new glimpse at the end of the star-forming process.
"No one has ever seen a hole like this," said study team member Tom Megeath of the University of Toledo in Ohio. "It’s as surprising as knowing you have worms tunneling under your lawn, but finding one morning that they have created a huge, yawning pit."
NGC 1999 is the green tinged cloud towards the top of the image. The dark spot to the right was thought to be a cloud of dense dust and gas until Herschel looked at it. It is in fact a hole that has been blown in the side of NGC 1999 by the jets and winds of gas from the young stellar objects in this region of space.
Credit: ESA/HOPS Consortium
Cloud associated with the Rosette Nebula, a stellar nursery about 5,000 light-years from Earth. The formation of new stars in galaxies like the Milky Way has declined five-fold in the last three billion years, initial findings of the European Space Agency’s Herschel telescope showed. Photo:/AFP
Stars are born in dense clouds of dust and gas, and while jets of gas have been spotted coming from young stars, the process of how a star uses this gas to disperse surrounding debris and emerge from its birth cloud has not been understood.
This latest discovery by Herschel, an infrared space telescope built by the European Space Agency, may be an unexpected step in the star-forming process.
A cloud of bright, reflective gas, known to astronomers as NGC 1999, is located next to a black patch of sky. For most of the 20th century, these black patches were understood to be dense clouds of dust and gas that block light that would normally pass through.
As Herschel’s infrared eye looked in the direction of NGC 1999 to study nearby young stars, the cloud continued to look black, even though the telescope’s infrared technology is designed to penetrate through such dense cloud material. This meant that either the cloud was immensely dense, or Herschel had happened upon a previously unexplained phenomenon.
Astronomers continued their investigation using ground-based telescopes and found the same results when looking at the patch of gas. This led to the conclusion that the patch looks black not because it is an extremely dense pocket of gas, but because it is truly empty – something had blown a hole through the cloud.
The astronomers think the hole must have been opened when the narrow jets of gas from some of the young stars in the region punctured the sheet of dust and gas that forms NGC 1999. The powerful radiation from a nearby mature star may have also helped to create the hole, researchers said.
Whatever the exact cause of the hole may be, the discovery may be an important glimpse into the way newborn stars shake off their birth clouds that helps astronomers develop a better understanding of the entire star-forming process, researchers said.
Herschel is the largest and most powerful infrared telescope in space today. The European Space Agency launched the observatory into orbit in May 2009.
Article from: Space.com
Herschel space telescope (2007)
Video from: YouTube.com
Vatican tied Mount Graham Observatory launches LUCIFER Telescope
Location chosen for European "Extremely Large Telescope"
Spacewalking Astronauts Seen With a Backyard Telescope (Video)
Robots in space: Navy will send ’bots to build lunar telescope
What space telescopes of tomorrow will see
"Red Square" Captured by Palomar and Keck Telescopes in the constellation Serpens
Search on for Death Star that throws out deadly comets
Lucus - The Destroyer Star & The Future of Mankind
Astronomers catch a shooting star for first time
Latest News from our Front Page
Pope Francis named Time’s ‘Person of the Year 2013’
2013 12 11
Pope Francis, the first Jesuit pontiff, elected nine months ago, was named Time magazine’s Person of the Year for 2013, leaving whistleblower Edward Snowden in second place, the magazine revealed on Wednesday.
The iconic title goes each year to the one chosen by prominent US magazine Time as the individual who had the most influence on the world and news over ...
Equal Opportunity Killing
2013 12 11
Nancy Pelosi called it the “selfie of the year": the group snapshot of the first four women to make it through Marine infantry training.
"Fearless," as Pelosi describes them. "Badasses," as onlookers have labeled them. Here is an acerbic quote from an article on Gawker:
These women have now definitively proven what fatuous Congressional oldsters for so long prevented other women from ...
(NOOOOOOOO!) JPMorgan files patent for Bitcoin-style payment system
2013 12 11
These guys never stop. I respect that about JP (in the way that I respect the Empire in Star Wars) and there is something to be said for an idea so disruptive that it attracts the sharks at JP.
But given this, if one doesn’t trust Bitcoin, don’t even consider trusting JPMorgan’s version of it.
(From The FT)
JPMorgan’s proposed system involves creating ...
New ‘Revelations’ on Kenya Mall Massacre: There were only FOUR shooters – who escaped alive
2013 12 11
21st Century Wire says…
From the onset, the Kenya Mall Massacre was riddled with odd circumstances and dramatised media coverage, so much so that it is very difficult not to skeptical about the official narrative of what happened, and who was involved. That narrative continues to unravel…
As 21Wire reported in late September, the attack which took place at the Westfields Shopping ...
Record outdoor radiation level that ‘can kill in 20 min’ detected at Fukushima
2013 12 11
Outdoor radiation levels have reached their highest at Japan’s Fukushima nuclear plant,warns the operator company.Radiation found in an area near a steel pipe that connects reactor buildings could kill an exposed person in 20 minutes,local media reported.
The plant’s operator and the utility responsible for the clean-up Tokyo Electric Power Company (TEPCO) detected record radiation levels on a duct which connects ...
|More News » |