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In the Media

article imageESA telescopes capture new images of Hubble 'Pillars of Creation'

article:318106:17::0
By JohnThomas Didymus
Jan 18, 2012 in Science
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Two of the European Space Agency's (ESA) orbiting observatories have captured new and spectacular views of the gas pillars in the Eagle Nebula (M16) that were the subject of the iconic 1995 Hubble images dubbed "Pillars of Creation."
The gas pillars of the Eagle Nebula, 6500 light-years away, are clouds of molecular hydrogen gas and dust several light years in length and so dense that gas in the interior undergoes gravitational collapse to form stars. The interior of the Nebula is thus a region of active star formation.
The images of the Eagle Nebula captured by the Hubble telescope in 1995, suffered the consequences of a technological limitation: astronomers were unable to see through the clouds of dust and gas at the structures and star formation activity going on within. According to MSNBC, in 2001, a near-infrared image by the 8.2-meter VLT's ANTU telescope, using the ISAAC instrument at the European Southern Observatory's Very Large Telescope facility in Chile, managed to reveal some of the young star formations beyond the gas and dust. Astronomers were able to determine from the near-infrared images that 11 of the Pillars' 73 structures called Evaporating Gaseous Globules (EEGs) could contain young star formations within. Astronomers also concluded from the images that the tips of the gas pillars contain stars not revealed in the Hubble image.
 Pillars of Creation   the Eagle Nebula  iconic astronomical image of the 20th Century
NASA/ESA/STScI, Hester & Scowen (Arizona State University)
"Pillars of Creation," the Eagle Nebula, iconic astronomical image of the 20th Century
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XMM-Newton X-ray view of Messier 16
VLT/ISAAC/McCaughrean & Andersen/AIP/ESO
XMM-Newton X-ray view of Messier 16
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With the latest images from the ESA Herschel Space Observatory captured in far-infrared wavelengths, astronomers can now see through the obscuring gas and dust even more clearly. They achieved this by combining images from the ESA Herschel Space Observatory with X-ray readings from the XMM-Newton probe (both observatories produce images from different ranges of the electromagnetic spectrum). New hot young star clusters, besides the already known NGC6611, forming within the gas and dust were revealed.
ISO mid-infrared view of the Pillars of Creation
VLT/ISAAC/McCaughrean & Andersen/AIP/ESO
ISO mid-infrared view of the Pillars of Creation
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Wide-angle view of Messier 16 in visible light
VLT/ISAAC/McCaughrean & Andersen/AIP/ESO
Wide-angle view of Messier 16 in visible light
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The young stars are generating radiation interacting with surrounding dust only a few degrees above absolute zero, creating hollowed-out regions within the gas clouds in which new star systems are formed. The new images also show clearly the points of strong X-ray emission within the system.
Pillars of Creation in near-infrared
VLT/ISAAC/McCaughrean & Andersen/AIP/ESO
Pillars of Creation in near-infrared
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With the new images, astronomers now believe that one of the stars in NGC6611 clusters went supernova generating an explosion shock that may have collapsed the "Pillars of Creation," though we may not see them collapse in the next few hundred years because of the time it would take for light carrying the information to reach us.
article:318106:17::0
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