An international team of astronomers discovered it more distant astronomical object in the universe, one galaxy by name HD1at a distance of about 13.5 billion light years.
The researchers, led by Fabio Pakucci of the Harvard-Smithsonian Center for Astrophysics in the USA, made the relevant publication in the journal “Monthly Notices” of the Royal Astronomical Society of Britain, reported that the galaxy is too bright in ultraviolet light for reasons that are not clear.
They appreciate that said galaxy either creates stars at an impressive rate (more than 100 each year, at least ten times what is expected), or contains an oversized black hole with a mass of about 100 million times greater than that of Ήλιουsomething that could alternatively explain its high brightness HD1.
As “swallows” Huge amounts of gas, high-energy photons can be emitted from the area around the black hole. If so, it’s the earliest known black hole, much closer to the original Big Bang than has been found to date.
HD1 was discovered after 1,200 hours of observations with various telescopes (Subaru, VISTA, Spitzer. UK Infrared). Observations from the large ALMA telescope in Chile followed, showing that HD1 is 100 million light-years away from GN-z11, the record holder for the oldest and most distant galaxy. HD1 observations from the new James Webb Space Telescope, which is “working” this year, will follow to confirm that it is the new holder of the galactic distance record.
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