Monday, 08 Augst 2022 | 17:57 WIB

KELT-9b: The Hot Extrasolar Planet That is Three Times Larger than Jupiter

KELT-9b: The Hot Extrasolar Planet That is Three Times Larger than Jupiter (publicdomainpictures)

BERN, NETRALNEWS.COM - Scientists reveal the existence of a hot planet they found. It is known that the hottest surface temperatures on the planet have been found at 4,327°C.

The boiling extrasolar planet experiencing high temperatures like that is due to the iron and titanium vapor found in the atmosphere, which is something that is usually only observed in stars.

Known as KELT-9b, this celestial body has a size three times larger than Jupiter. The planet is known to be only half-solid, which allows heavy metal vapor to form.

The researchers published their findings in the journal Nature and described a unique laboratory to analyze how the atmosphere could evolve under strong star radiation.

The temperature in KELT-9b reaches an extreme state, so the planet gets hotter than a few stars. The incredible heat is because of its star, KELT, which is about 10,000°C and a large planet that is 30 times closer to its star.

Due to the proximity, the extrasolar planet encircles its star in 36 hours and is hotter than several stars.

A team of astronomers from the University of Bern and the University of Geneva observed the planet as it moved in front of its hot white star.

Using the HARPS-North spectrograph in La Palma, on the Baleaeric island of Mallorca, the researchers studied in great detail, even though it occurred 650 light years from Earth in the Cygnus (Swan) constellation.

By taking very precise readings of the light emitted before and during the planetary part, the team was able to identify the atmospheric components of KELT-9b from the chemical signs produced.

"We are as if following a treasure map. When we dug deeper into the data, we found more new things," said a researcher at the University of Geneva and Bern and lead author of the study, Jens Hoeijmakers, as quoted from the Daily Mail.

In colder giant exoplanets, these atomic species are thought to be hidden in gas oxides or in the form of dust particles, making them difficult to detect.

Although scientists now know some key ingredients in the KELT-9b atmosphere, they still have little idea about how the atmosphere on this hot planet is formed and what shape it looks like.