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ASTROPHYSICS NEWS: Fireworks as Black Hole Eats a Star | High Sierra Backpacker

ASTROPHYSICS NEWS: Fireworks as Black Hole Eats a Star


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 16 June 2018

 

 

ASTROPHYSICS NEWS

Celestial Fireworks
supermassive black hole shreds passing star, NRAO, 2018.
Star is Shredded -- Radio Telescopes Show Aftermath  Credit: Sophia Dagnello, NRAO/AUI/NSF; NASA, STScI

Artist's conception of Tidal Disruption Event (TDE) in Arp 299. Powerful gravity of supermassive black hole shreds passing star, pulling material into disk rotating around the black hole, and launching jet of particles outward. Artist's conception in pullout -- background is Hubble Space Telescope image of Arp 299, a pair of colliding galaxies.

 

Black Hole "Pops" a Passing Star

Astronomers see distant eruption as black hole destroys star,
National Radio Astronomy Observatory, June 14, 2018.

 MAIN POINTS

"For the first time, astronomers have directly imaged the formation and expansion of a fast-moving jet of material ejected when the powerful gravity of a supermassive black hole ripped apart a star that wandered too close to the cosmic monster."

"in a pair of colliding galaxies called Arp 299, nearly 150 million light-years from Earth. At the core of one of the galaxies, a black hole 20 million times more massive than the Sun shredded a star more than twice the Sun's mass, setting off a chain of events that revealed important details of the violent encounter."

"The first indication came on January 30, 2005, when astronomers using the William Herschel Telescope in the Canary Islands discovered a bright burst of infrared emission coming from the nucleus of one of the colliding galaxies in Arp 299."

"... discovered as part of a project that sought to detect supernova explosions in such colliding pairs of galaxies. Arp 299 has seen numerous stellar explosions, and has been dubbed a "supernova factory." This new object originally was considered to be a supernova explosion. Only in 2011, six years after discovery, the radio-emitting portion began to show an elongation. Subsequent monitoring showed the expansion growing, confirming that what the scientists are seeing is a jet, not a supernova."

 

 

Same Event, Different Perspective

Supermassive black hole swallows star, lights up galaxy core,
Ars Technica, June 15, 2018.

 

 

The National Radio Astronomy Observatory

 

 

OUR GALAXY: Centered on a Supermassive Black Hole & a Swirling Swarm of Hundreds of Smaller Holes?

 

What would that look like?

Direct to Video
N-Body Simulation Showing Black Hole Dynamics.
Northwestern.

 

 

 

Other Threats 
Things that go BOOM in the Night

Black Hole Plasma Planet Killer Beam

 

LIGO Neutron Star Merger Detection, Four LIGO Articles: Gravity Waves Shine Visible Light on Gold, Gamma Rays, and a Gravity Hole

 

Massive Invisible Explosion
Two Reports: Three LIGOS Triangulate on Source of Gravity Wave

 

 

The Existential Zone 

 

 

 

 

Astro-Physics News

 

 

 

 

June 2018 News of Man & Nature

 

 

 

 

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