Posted on 02/06/2017 5:58:14 PM PST by MtnClimber
A chance observation in a corner of the Milky Way galaxy could hint at a hidden black hole.
A cloud travelling in a corner of our galaxy at a blistering 100 kilometres per second likely harbours a black hole, according to Japanese astronomers.
Masaya Yamada and colleagues from Keio University mapped the motion and appearance of the fast-moving feature nicknamed the "Bullet" and concluded that its shape and velocity can be attributed to a black hole hiding within.
The work, which was published in The Astrophysical Journal, outlines one of only a few such "quiet" black holes found in the Milky Way so far.
Black holes, which don't let any light escape their gravitational clutches aside from Hawking radiation are generally detected from their effects on other, visible objects.
For instance, astronomers deduced the location of the Milky Way's central supermassive black hole from the movement of a single star around the centre of our galaxy.
It's not just stars that give away a black hole's location. Clouds of gas and stellar debris can do so too such as the Bullet, outlined by Yamada and colleagues in their paper.
They discovered the Bullet while investigating the shell of an exploded star, a supernova, nearly 10,000 light-years from Earth. They noticed a cloud, around two light-years across, moving extremely quickly against the motion its surrounds.
When they examined the cloud closely with the Atacama Submillimetre Telescope Experiment's 10-metre telescope in Chile and the Nobeyama 45-metre telescope in Japan, they picked out a couple of weird features.
The Bullet isn't in the shape of an actual bullet; rather, it splits into a Y-shape. And while most of it is expanding at 50 kilometres per second, its tip is travelling at 120 kilometres per second.
(Excerpt) Read more at cosmosmagazine.com ...
Pretty close astronomically. I wonder what the direction of travel is relative to us. A black hole could ruin the neighborhood and that is not racist.
“In 2002, astronomers calculated there should be up to a billion black holes in the Milky Way, but scant few candidates only around 60 have been found.”
Time to get right with God?
Some will never get it.
Getting vacuumed up will be suboptimal...
” The Bullet isn’t in the shape of an actual bullet; rather, it splits into a Y-shape. And while most of it is expanding at 50 kilometres per second, its tip is travelling at 120 kilometres per second.”
Cosmic water dowser headed towards a source of water.
120 kilometres per second will vaporize any water it finds. And all nearby star syatems.
>A cloud traveling in a corner of our galaxy at a blistering 100 kilometers per second likely harbors a black hole, according to Japanese astronomers.
Stop right there. Is it gaining on US or leaving US?
https://www.youtube.com/watch?v=nnjV7qIPVsA
60 miles a second is “blistering”? Mercury speeds around the sun at about 30 miles a second.
then that douses the need for water.
It was a quiet, intense gravitational field but kept to itself, something of a loner—unless you got too close.
Is the light-shift to the red or to the violet?
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