New Delhi: The US space agency said that for the first time it has seen signs of a star transiting a planet outside our Milky Way galaxy. NASA’s Chandra X-ray Observatory made a discovery that opened a new avenue for the discovery of exoplanets at greater distances than previously thought.
NASA in a statement
Rosanne Di Stefano of the Center for Astrophysics said, “We are trying to open up a new field for finding other worlds by searching for planet candidates in X-ray wavelengths, a strategy that would make it possible to find them in other galaxies.” ” Harvard and the Smithsonian (CFA) in Cambridge, Massachusetts, who led the study.
The exoplanet candidate was spotted in a binary system called M51-ULS-1. The system consists of a black hole orbiting a companion star with a mass about 20 times that of the Sun. The team estimates that the exoplanet candidate will be roughly the size of Saturn, and orbiting a neutron star, or black hole, at about twice the distance of Saturn from the Sun.
Researchers will need more data to verify the interpretation as an extragalactic exoplanet. Since the planet candidate’s orbit is massive, it means the next time it crosses in front of its binary companion again for about 70 years, decades in the process thwarted any attempts to confirm observations. It goes, NASA said.
So far all other known exoplanets and exoplanet candidates have been found in the Milky Way, and almost all of them are placed less than about 3,000 light-years from Earth. NASA said that the exoplanet in M51 will be about 28 million light-years away.
The findings have been published in the journal Nature Astronomy.
live TV
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