The discovery of a planet-like body that is hotter than the sun has sparked the interest of scientists and researchers in the field of astronomy. Where this brilliant discovery was announced, which heralds a major change in our understanding of the outer planets.
According to the latest study published in the Astrophysical Journal, an astronomical object called “KELT-9b” has been spotted, which is a planet orbiting a star similar to the Sun, and is located about 650 light-years from Earth. The planet has a temperature of 4,300 degrees Celsius, which is much hotter than the surface temperature of the Sun, which is about 5,500 degrees Celsius.
This amazing discovery opens the door to studying the effects of extreme heat on planetary systems and astronomical bodies. In fact, KELT-9b’s temperature is the highest ever recorded of any planetary body.
Scientists believe that the surface of this planet holds unique and amazing details. Where they believe that the atmosphere of this planet contains forms of molten iron, which gives it this enormous heat.
Thanks to new technologies and advances in astronomy, we are now able to observe and analyze important details about distant planets. Thanks to this surprising discovery, we will be able to better understand the other planets in the universe and their composition.
In the end, the discovery of a planet-like object hotter than the sun proves once again the importance of innovation and avant-garde in scientific discoveries in the field of astronomy. It will open the door to deeper and more detailed studies to understand distant planets and their extreme environments.
expression of the sun
It is the hottest brown dwarf ever observed
Dubai – Al Arabiya.net
Posted on: Aug 19, 2023: 03:16am GST
Last updated: August 19, 2023: 03:34 AM GST
An international team of astronomers has discovered a planet-like object hotter than the sun, according to a report in Nature Astronomy.
Scientists have found a brown dwarf called WD0032-317B, and this object is located 1,400 light-years away.
A brown dwarf orbits its host star so closely that it reaches an incredibly high temperature of more than 8,000 degrees Kelvin, about 2,000 degrees hotter than the surface temperature of the Sun. It is the most important brown dwarf observed to date.
Objects located between planets and stars
Brown dwarfs are classified as objects located between planets and stars, and although they are hotter than planets, they cannot reach the temperatures of stars.
The discovery of WD0032-317B provides valuable insights into the behavior of gas giants, such as Jupiter, orbiting hot, massive stars.
These observations are often difficult due to the brightness and activity of the stars. The harsh environment around these exoplanets can cause their atmospheres to evaporate and break up molecules due to the intense ultraviolet radiation they receive.
opportunity for scholars
WD0032-317B presents an opportunity for scientists to study such extreme environments, since its companion is a white dwarf star, called WD0032-317, which is much smaller and dimmer, with a mass of only 40% that of our sun. Hotter than it, the temperature is about 37,000 K (for comparison, the surface of the Sun is about 5,778 K).
Brown dwarfs are different from planets and stars. It has enough mass to spark deuterium fusion, a process involving a heavy isotope of hydrogen, but it doesn’t have the same fusion reactions as stars.
Its temperature can reach about 2,500 K, and its mass is 80 times that of Jupiter.
On the other hand, white dwarfs are remnants of stars and their temperatures can be similar to giant blue planets.
In early 2000, observations with the Echelle Spectrograph instrument on the European Southern Observatory’s Very Large revealed WD0032-317, and that it was being influenced by an unseen companion.
These are his qualities
Recent observations, published in a paper in the journal Nature Astronomy, confirmed that this companion is a brown dwarf, rather than a companion star, with masses between 75 and 88 Jupiters. The proximity of a brown dwarf to its host star causes it to be phase-locked, meaning that the same side of the planet is constantly facing its star.
Daytime maximum temperatures range from 7,250 to 9,800 K (about 7,000 and 9,500 degrees Celsius), which is as hot as A-type stars, sun-like stars that can be twice the mass of the Sun, and hotter than any known giant planet. On the other hand, the temperature of the night side is between 1,300 and 3,000 K (about 1,000 and 2,700 °C), which leads to an extreme temperature difference of about 6,000 degrees between the two hemispheres.
Studying WD0032-317B could provide valuable insights into how hot stars vaporize their small companion objects.
