Cosmic X-ray map also reveals more than 900,000 high-energy cosmic sources
New Delhi:
Scientists have released the largest X-ray map of the universe to date, discovering more than 900,000 high-energy cosmic sources, including more than 700,000 supermassive black holes
The German “eROSITA” alliance announced on January 31 the data collected by the eROSITA X-ray telescope on the Russian-German satellite Spektrum-RG.
The first eROSITA All-Sky Survey Catalog (eRASS1) is the largest collection of X-ray sources published to date, the Max Planck Society in Germany, which helps manage the mission, said in an official statement.
Half of the X-ray image #universe: First release of eROSITA Sky Survey data releases reveals largest ever catalog of high-energy cosmic sources 😲 https://t.co/POg5FuVraP@eROSITA_SRG@MPE_Garchingpic.twitter.com/X21gnUD6iW
— Max Planck Society (@maxplanckpress) January 31, 2024
“In its first six months of observations, eROSITA has discovered more X-ray sources than were known in the 60-year history of X-ray astronomy,” it said.
The eRASS1 observations of the eROSITA telescope were carried out from December 12, 2019 to June 11, 2020.
The Max Planck Society said eROSITA entered “safe mode” in February 2022 and has not restarted scientific operations since then.
In addition to about 710,000 supermassive black holes in distant galaxies, these 900,000 high-energy cosmic sources also include 180,000 X-ray emitting stars in the Milky Way, 12,000 galaxy clusters, and a small number of other exotic sources such as X-ray emitting binary stars, supernova remnants, and pulses. stars and other objects.
“These are stunning numbers for X-ray astronomy,” said eROSITA principal investigator Andrea Merloni.
She added: “We have discovered more sources in six months than the XMM-Newton and Chandra large flagship missions have accomplished in nearly 25 years of operation.”
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