Missing Matter Found in Our Own Galaxy
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Although dark matter continues to elude direct detection, scientists likewise remain baffled as to where all of the
regular matter is. Now, a team of astronomers says it has found evidence for some of this missing regular (or “baryonic”) matter; they say it takes the form of lightless “snow clouds” made of hydrogen. And the team found the elemental ghosts right here in the Milky Way.
Wired reported on the discovery, which a team of astronomers led by Yuanming Wang at the University of Sydney recently published in the journal
Monthly Notices of the Royal Astronomical Society. Wang actually invented a novel technique for detecting baryonic matter, deployed in this situation to find the hydrogen snow clouds.
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IMAGE: Image of the studied galaxy cluster in formation, 12.5 billion light years from us. The circles indicate the new members discovered with the GTC, 4 of them are shown in. view more
Credit: Credit: NASA/ESA/GOODS-N+3DHST+CANDELS Team/Daniel López/IAC
A study, led by researchers at the Instituto de Astrofísica de Canarias (IAC) and carried out with OSIRIS, an instrument on the Gran Telescopio Canarias (GTC), has found the most densely populated galaxy cluster in formation in the primitive universe. The researchers predict that this structure, which is at a distance of 12.5 billion light years from us, will have evolved becoming a cluster similar to that of Virgo, a neighbour of the Local Group of galaxies to which the Milky Way belongs. The study is published in the specialized journal
A new theoretical study has proposed a novel mechanism for the creation of supermassive black holes from dark matter. The international team find that rather than the conventional formation scenarios involving normal matter, supermassive black holes could instead form directly from dark matter in high density regions in the centres of galaxies. The result has key implications for cosmology in the early Universe, and is published in
Supermassive black holes could be formed out of dark matter, a new study has suggested. The research aims to address the mystery over the gargantuan cosmic objects: the seemingly impossible problem how exactly they form, and so quickly. Researchers have observed supermassive black holes as early as 800 million years after the Big Bang. It is not clear how they could form in such little time, or how they were initially created. Usually,.