Stereo Signals From Distant Celebrities Suggest Hidden Planets
“We’ve discovered signals from nineteen distant red dwarf celebrities, four of which are best explained by the existence of planets orbiting them. “
Using the world’s most powerful radio antenna, scientists have discovered celebrities unexpectedly blasting out radio stations waves, possibly indicating the presence of hidden planets.
The University of Queensland’s Dr Benjamin Pope plus colleagues at the Dutch national observatory ASTRON have been searching for exoplanets using the world’s most powerful radio stations telescope Low Frequency Variety (LOFAR) situated in the Netherlands.
“ We’ve found out signals from 19 faraway red dwarf stars, four of which are best explained by existence of planets orbiting them, ” Dr Pope said.
“ We’ve long known that the planets of our own sun system emit powerful stereo waves as their magnetic areas interact with the solar breeze, but radio signals through planets outside our pv system had yet to become picked up.
“ This discovery is an important step for radio astronomy and may potentially lead to the finding of planets throughout the universe. ”
Formerly, astronomers were only able to detect the very nearest superstars in steady radio emission, and everything else in the radio stations sky was interstellar gasoline, or exotica such as dark holes.
Now, radio astronomers are able to find plain old stars when they make their observations, and with that will information, we can search for any planets surrounding those stars.
The group focused on red dwarf superstars, which are much smaller than the Sun and known to have intense magnetic activity that hard disks stellar flares and stereo emission.
But some old, magnetically inactive stars also showed up, challenging conventional understanding.
Dr Joseph Callingham at Laborieren University and ASTRON and lead author of the breakthrough, said that the team is definitely confident these signals are coming from the magnetic connection from the stars and unseen orbiting planets, similar to the interaction among Jupiter and its moon, Io.
“ Our own Earth has aurorae, commonly recognised here as the northern and southern lights, that also emit powerful stereo waves – this is from the interaction of the planet’s permanent magnet field with the solar wind, ” he said.
“ But in the situation of aurorae from Jupiter, they’re much stronger as its scenic moon Io is blasting material out into area, filling Jupiter’s environment with particles that drive unusually powerful aurorae.
“ Our model with this radio emission from our celebrities is a scaled-up version associated with Jupiter and Io, with a planet enveloped in the magnetic field of a star, giving material into vast currents that similarly power shiny aurorae.
“ It’s a spectacle that has captivated our attention from lightyears away. ”
The research team now wanted to confirm the proposed exoplanets do exist.
“ We can’t be 100 % sure that the four celebrities we think have planets are usually indeed planet hosts, but we can say that a planet-star interaction is the best explanation intended for what we’re seeing, ” Dr Pope said.
“ Follow-up findings have ruled out planets more massive than Earth, but there’s nothing to say that a smaller sized planet wouldn’t do this. ”
The breakthroughs with LOFAR are just the beginning, but the telescope only can monitor stars that are relatively nearby, up to 165 lightyears away.
With Australia and South Africa’s Square Kilometre Array radio telescope finally under construction, hopefully switching on in 2029, the team predict they are able to see hundreds of relevant stars out to much greater distances.
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