2023-07-14 19:07:29
Astronomers at the University of Sydney have revealed that the dim star is the coldest emitting star ever detected, and in the study they examined a glob of gas boiling at 425 degrees Celsius. The surface temperature of the Sun, the nuclear hell, is regarding 5,600 degrees. And while it’s not the coolest star, it’s the best at emitting radio waves, according to findings published in Astrophysical Journal Letters. “It is very rare to find radio-emitting stars like this very cool brown dwarf,” said Kofi Rose, a researcher in the School of Physics. This is because their dynamics do not usually produce magnetic fields that produce radio emissions detectable from Earth. “Finding this star that is emitting radio waves at such a low temperature is an amazing discovery,” he added. In this case, the radio waves are thought to be generated by the flow of electrons into the star’s magnetic pole region, causing the radio bursts to repeat continuously. Rose analyzed the star using new data from the CSIRO ASKAP telescope in Western Australia and observations from the Australian Integrated Telescope Array near Narrabri in New South Wales and the Meerkat telescope in South Africa.
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