An exoplanet discovered in 1999 was found to have six different chemicals in its atmosphere.
The HD 209458 b, also nicknamed Osiris, is another star system planet very far from the solar system. It was discovered in 1999 when it passed the host star, a star very similar to our Sun.
It is the first time that so many molecules have been measured in the atmosphere of an exoplanet — Release today Nature- Use a larger telescope to test the technology used to try to detect signs of potentially habitable planets.
Where is it Osiris?
Osiris orbits a sun-like star in the constellation Pegasus, a winged horse, about 159 light-years away from the solar system.
This ultra-high temperature, larger world atmosphere than Jupiter, appears to have more carbon than oxygen. This is rated fairly normal for planets formed farther than their current location, that is, planets only 7 million kilometers away.
This corresponds to 5% of the distance from the earth to the sun.
When and how Osiris Have you been found?
In 1999, it was one of the first exoplanets discovered and was the first planet to use the now common exoplanets. Transit Method. Astronomers using Telescopio Nazionale Galileo on the island of La Palma in Spain observed it as they passed in front of the stars. A kind of solar eclipse..
Osiris was a lucky discovery.
Finding dim stars as planets pass is a very limited way to find exoplanets. Astronomers adopting this “transit method” only see exoplanets in a star system in which we have a sideways line of sight. The planet must be aligned between the telescope and the detected star.
It did not stop astronomers from using the transit method to find more than 4,000 exoplanets Kepler Space Telescope.. NASA’s currently operating Transiting Exoplanet Exploration Satellite (TESS) Space Telescope also uses the transit method.
That ’s one of the reasons astronomers are thinking most now. all Stars have planets.
Osiris gets a chemical close-up
Osiris has been studied many times since 1999, but this is the first time six individual molecules have been measured in the atmosphere to create detailed “chemical fingerprints.”
Researchers did this by capturing the light of a shining star through the atmosphere of Osiris as it passed in front of the host star in four separate steps. In the star’s light, there was a spectrum showing what chemicals were contained in the planet’s atmosphere.
What’s in the “Chemical Fingerprint” of Osiris?
Hydrogen cyanide, methane, ammonia, acetylene, carbon monoxide, and a small amount of water vapor. Carbon-based molecules such as hydrogen cyanide, methane, acetylene, and carbon monoxide are unexpected, suggesting that there are about as many carbon atoms in the atmosphere as there are oxygen atoms.
Its composition is only expected on planets that orbit further away from the stars when they are first formed, such as Jupiter and Saturn in the solar system.
What does that “chemical fingerprint” teach us?
It shows that Osiris was originally formed far away from the star system.
This is because it is warm near the stars and water vapor contains much of the oxygen in the planet’s atmosphere. Even colder, the water condenses into ice, leaving an atmosphere dominated by carbon-based and nitrogen-based molecules, similar to the atmosphere of Osiris.
Dr. Siddhars Gandhi of the Department of Physics at Warwick University in the United Kingdom said: “At the very hot temperatures of 1,500 K on this planet, when the atmosphere contains all the elements in the same proportions as the parent star, oxygen is twice as rich as carbon and most combine with hydrogen to form water. Or it must be bonded to carbon. It forms carbon monoxide. “
Wishing for fine weather and wide eyes
Welcome to Osiris, the world of aliens discovered during a solar eclipse that just shared a unique “fingerprint”
https:///sites/jamiecartereurope/2021/04/07/welcome-to-osiris-the-first-alien-exoplanet-to-be-found-during-an-eclipse-that-now-has-a-groundbreaking-chemical-fingerprint/ Welcome to Osiris, the world of aliens discovered during a solar eclipse that just shared a unique “fingerprint”