“Frenzied” –Strange, Monster Galaxy at Dawn of the Universe

Very Early Galaxies

 

“Even before the universe was 2 billion years old, XMM-2599 had already formed a mass of more than 300 billion suns, making it an ultramassive galaxy,” said Ben Forrest, a postdoctoral researcher at the UC Riverside about galaxy XMM-2599, that formed stars at a high rate and then inexplicably died. “More remarkably, we show that XMM-2599 formed most of its stars in a huge frenzy when the universe was less than one billion years old, and then became inactive by the time the universe was only 1.8 billion years old.”

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“Dead or Alive?” –Postmortem of Gigantic Galaxies at Dawn of the Cosmos

Hubble Deep Field Frontier Image

 

“We found that its core seems already fully formed at that time,” says Masayuki Tanaka who led a team of researchers of the Cosmic Dawn Center at the Niels Bohr Institute and the National Observatory of Japan about a recently discovered massive galaxy already dying only 1.5 billion years after the Big Bang. “This result pairs up with the fact that, when these dying gigantic systems were still alive and forming stars, they might have not been that extreme compared with the average population of galaxies”, adds Francesco Valentino, author of an article on the past history of dead galaxies appeared in the Astrophysical Journal.

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The Galaxy Report –“Gravitational-Wave Mystery to Strange Dark Matter Discovery”

 

ESO Observatories Chile

 

Today’s “Galaxy Report” connects you to headline news on the science, technology, discoveries, people and events changing our knowledge of the Milky Way and the Universe beyond.

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“Our Understanding is Limited” –Massive Galaxies in Place Soon After Big Bang

Early Galaxy NASA

 

“If we point a telescope to the sky and take a deep image, we can see so many galaxies out there. But our understanding of how these galaxies form and grow is still quite limited — especially when it comes to massive galaxies,” said Masayuki Tanaka, at the Graduate University for Advanced Studies and the National Astronomical Observatory of Japan about an ancient galaxy more massive than our Milky Way that has revealed that the ‘cores’ of massive galaxies in the Universe had formed already 1.5 billion years after the Big Bang, about 1 billion years earlier than previous measurements.

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“Galaxies Never Observed Before” –Radio ‘Time Machine’ Reaches Back at Speed of Light

 

Distant Galaxies MEERKAT

 

Each tiny dot in the radio image above, captured by astronomers using the South African Radio Astronomy Observatory (SARAO) MeerKAT telescope, is a distant galaxy, with the brightest spots galaxies that are powered by supermassive black holes. These are distant galaxies like the Milky Way that have never been observed in radio light before.

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“The Glittering Galaxy” –Neutron Stars & Black Holes Light Up The Whirlpool

M51 The Whirlpool Galaxy

 

This stunning image of M51, the Whirlpool Galaxy, with vast its arms like a grand spiral staircase sweeping through space, contains nearly a million seconds of observing time with NASA’s Chandra X-ray Observatory, revealing hundreds of glittering, point-like X-ray sources. Most of these point sources are binary systems with either a neutron star or black hole orbiting a Sun-like star. (more…)