Sunday, December 6

Star Swallowing Black Holes

Via radio signals, scientists have detected a black hole swallowing a star similar to our sun.  A team of astrophysicists, led by a Johns Hopkins University scientist, were able to witness destruction, which led to the ejection of a flare of matter that moved close to the speed of light.
Sjoert van Velzen, a Hubble fellow at Johns Hopkins, stated:
These events are extremely rare...It's the first time we see everything from the stellar destruction followed by the launch of a conical outflow, also called a jet, and we watched it unfold over several months.
We have seen this before. Years back NASA's Swift satellite discovered evidence of a neutron star being swallowed by a black hole back in 2005.  It is not the same thing as watching a sun like our own being pulled apart, but it similarly demonstrates the danger of a star's proximity to the sun.

And below is an image from a few years ago showing a flare from a star being destroyed at a galaxy's center by a black hole.  As the NASA site noted:
These images, taken with NASA's Galaxy Evolution Explorer and the Pan-STARRS1 telescope in Hawaii, show a brightening inside a galaxy caused by a flare from its nucleus. The arrow in each image points to the galaxy. The flare is a signature of the galaxy's central black hole shredding a star that wandered too close.
Yes, the universe can be a violent place.