Authors: George Rajna
Unexpected hot spots in the cosmic microwave background (CMB) could have been produced by black holes evaporating before the Big Bang.  Researchers have developed a new way to improve our knowledge of the Big Bang by measuring radiation from its afterglow, called the cosmic microwave background radiation.  The group's results reinforce a disagreement over the value of the Hubble constant as measured directly and as calculated via observations of primordial radiation – a disparity, say the researchers, which likely points to new physics.  Neutron stars consist of the densest form of matter known: a neutron star the size of Los Angeles can weigh twice as much as our sun.  Supermassive black holes, which lurk at the heart of most galaxies, are often described as "beasts" or "monsters".  The nuclei of most galaxies host supermassive black holes containing millions to billions of solar-masses of material.  New research shows the first evidence of strong winds around black holes throughout bright outburst events when a black hole rapidly consumes mass.  Chris Packham, associate professor of physics and astronomy at The University of Texas at San Antonio (UTSA), has collaborated on a new study that expands the scientific community's understanding of black holes in our galaxy and the magnetic fields that surround them.  In a paper published today in the journal Science, University of Florida scientists have discovered these tears in the fabric of the universe have significantly weaker magnetic fields than previously thought.  The group explains their theory in a paper published in the journal Physical Review Letters—it involves the idea of primordial black holes (PBHs) infesting the centers of neutron stars and eating them from the inside out.  But for rotating black holes, there's a region outside the event horizon where strange and extraordinary things can happen, and these extraordinary possibilities are the focus of a new paper in the American Physical Society journal Physical Review Letters. 
Comments: 33 Pages.
[v1] 2018-08-21 09:15:37
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