Wobbling star reveals most massive stellar black hole in our Milky Way (which also happens to be very close by)

Astronomers discover the stellar black hole in data from the Gaia telescope, as report in the. journalhe Gaia telescope is design to record the position, distance and movements of billions of stars more accurately than ever before. And in doing so, it came across a star that made what at first glance seem an inexplicable ‘wobbling motion’. It hint that the orbit of this star was being influenc by an invisible companion. And researchers quickly conclud that it had to be a stellar black hole.

BH3 may be quite remarkable here in our Milky Way, but black holes with similar masses have been discover outside our galaxy. They are thought to form when stars that contain few elements heavier than hydrogen and helium collapse.

The observations end of their lives and

These so-call ‘metal-poor’ stars would lose less mass during their lives, leaving them with more material at the  thus able to transform into a relatively heavy stellar black hole. It may sound like a logical story, but until recently

Follow-up observations of the star – using the Very Large Telescope in Chile – in combination with the Gaia data – then help data library of telegram researchers to accurately calculate the mass of the stellar-mass black hole. And those calculations reveal that the stellar-mass black hole is a whopping 33 times more massive than our sun. This makes the black hole – which is designat BH3 – the most massive stellar-mass black hole discover in our Milky Way to date.

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By far the heaviest

The discovery is remarkable for several reasons. For example, the mass of the object is truly exceptional; most stellar-mass chine directoryAI CRM в продажбите на застраховки: промяна на играта black holes in our Milky Way are on average ‘only’ 10 times heavier than our sun. And even the second heaviest stellar-mass black hole we know of – Cygnus X-1 – doesn’t come close to BH3, with a mass ‘only’ 21 times greater than that of the sun.

What is also remarkable is that the be numbers stellar black hole is quite close; it is only 2000 light years away. “The fact that a black hole of this mass could have gone unnotic in our neighbourhood came as a surprise to everyone,” says Pasquale Panuzzo.

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