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Scientists have found microscopic nanodiamonds surrounding three infant star systems in the Milky Way.
Astronomers indicate that tiny diamonds account for the shimmer of cosmic microwave light that has puzzled researchers for 20 years.
For a long time, researchers have fought to explain why the odd glow emanates from several of the galaxy’s protoplanetary disks.
As claimed www.spacedaily.com “Until now, scientists thought the most likely culprit was a type of carbon-based molecule called a polycyclic aromatic hydrocarbon, or PAH. The interstellar particles yield a faint infrared signature”.
Astronomers could only observe three young stars; (V892 Tau, HD 97048 and MWC 297) with a help of National Science Foundation’s Green Bank Telescope in West Virginia and the Australia Telescope Compact Array. They discovered the AME emissions most directly matched the infrared pattern produced by nanodiamonds.
“This is the first clear detection of anomalous microwave emission coming from protoplanetary disks,” Green Bank astronomer David Frayer said in a news release.
The observations that was realized the last time showed other star systems produce the signature made by PAHs but show no signs of AME, offering nanodiamonds alone account for the faint shimmer.
According to www.spacedaily.com “Studies have previously suggested the presence of nanodiamonds, tiny particles of crystalline carbon, in the protoplanetary disks surrounding distant stars, but the latest findings – are the first to link the particles with AME”
Nanodiamonds are so small that they can spin at tremendous speeds, emitting electromagnetic radiation in the microwave range. They also produce what is called a “dipole moment,” yielding an electromagnetic radiation when they spin. Because they’re so small,
“This is a cool and unexpected resolution to the puzzle of anomalous microwave radiation,” said Jane Greaves, an astronomer at Cardiff University in Wales. “It’s even more interesting that it was obtained by looking at protoplanetary disks, shedding light on the chemical features of early solar systems, including our own.”