cosmic glow. earth

In a new study, it is found out that diamond dust is responsible for mysterious glow which is emanating from certain regions of the Milky Way galaxy.

As per the astronomers, they have long known which have some type of very small, and they are rapidly spinning particle is throwing off this faint light, and they are known as anomalous microwave emission (AME).

This new study was carried out by researchers who use the Green Bank Telescope in West Virginia and the Australia Telescope Compact Array to search for AME light in 14 newborn star systems which were across the Milky Way. They have spotted the emissions in about three of these systems, and they come from the planet-forming disks of dust and gas which swirls around the stars.

According to the co-author of the study, David Frayer, who is an astronomer with the  Green Bank Observatory has said that this will be the first time that there will be the first clear detection of anomalous microwave emission which comes from the protoplanetary disks. The team who have done this study also detected that there are unique infrared-light signatures of nanodiamonds which have carbon crystals which is far smaller than a grain of sand and it is in same three systems. These signatures are very rare, and till now no younger stars have confirmed the infrared imprint. This study was led by Jane Greaves, who is an astronomer at Cardiff University in Wales.

Greaves added by saying that it is like Sherlock Holmes-like a method to eliminate all other causes which we can confidently be the best candidate which is capable of producing the microwave glow and it is in the presence of nanodiamonds which is around the newly formed stars.

As per the team estimation, only 1 to 2 percent of total carbon present on the protoplanetary disks has been incorporated into nanodiamonds. The other leading AME-source candidate, who is the family of organic molecules is known as polycyclic aromatic hydrocarbons (PAHs), and it doesn’t hold up under scrutiny as per researchers. This infrared signature of PAHs is identified as multiple young star systems which lack AME glow.


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