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Using Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument), a team led by Tea Temim at Princeton University is searching for answers about the Crab Nebula’s origins.
“Webb’s sensitivity and spatial resolution allow us to accurately determine the composition of the ejected material, particularly the content of iron and nickel, which may reveal what type of explosion produced the Crab Nebula,” explained Temim.
At first glance, the general shape of the supernova remnant is similar to the optical wavelength image released in 2005 from NASA’s Hubble Space Telescope: In Webb’s infrared observation, a crisp, cage-like structure of fluffy gaseous filaments are shown in red-orange. However, in the central regions, emission from dust grains (yellow-white and green) is mapped out by Webb for the first time.
Additional aspects of the inner workings of the Crab Nebula become more prominent and are seen in greater detail in the infrared light captured by Webb. In particular, Webb highlights what is known as synchrotron radiation: emission produced from charged particles, like electrons, moving around magnetic field lines at relativistic speeds. The radiation appears here as milky smoke-like material throughout the majority of the Crab Nebula’s interior.
webbtelescope.org...-id-2
originally posted by: MoreCoyoteAngels
a reply to: dothedew
Are those the legendary Crabcats that are so fear invoking?
.....(shudder).....
Then when you consider the fact that the area is 6,500 light-years distant.....
Which when taking the size of the Universe as a whole is practically next door.
originally posted by: MoreCoyoteAngels
a reply to: dothedew
Are those the legendary Crabcats that are so fear invoking?
.....(shudder).....
The Crab Nebula is about 6,500 light-years away from Earth , it was created by a giant Star that went Bang about 1,000 years ago leaving a pretty Nebula in the sky for us to look at