Wild Times at a Misaligned Black Hole-Giant Star Binary System


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 01 May 2019

 

ASTROPHYSICS

Artistic Impression of V404 Cygni Black Hole Sloppily Eating a Giant Star
Artistic Impression of V404 Cygni Black Hole Sloppily Eating a Giant Star, ICRAR.
"The binary star system consists of a normal (reddish giant) star in orbit with a black hole. Material from the star falls towards the black hole and spirals inwards in an accretion disk, with powerful jets being launched from the inner regions close to the black hole. The key deal here is the rotation of the jet." By the International Centre for Radio Astronomy Research, ICRAR.

 

Massive Plasma Jets Spraying Wildly out of Black Hole-Giant Star Binary System

Spinning Black Hole Sprays Light-Speed Plasma Clouds into Space,
International Centre for Radio Astronomy Research, April 29, 2019.

MAIN POINTS

V404 Cygni

"V404 Cygni was first identified as a black hole in 1989 when it released a big outburst of jets and radiation."

"...a black hole almost 8000 light-years from Earth."

"Where jets are usually thought to shoot straight out from the poles of black holes, these jets were shooting out in different directions at different times. "

Artist's Impression of Jet Ejections in V404 Cygni Artistic Impression of the Changing Jet Orientation Over Time in V404 Cygni, ICRAR."Artistic interpretation of jet ejections in V404 Cygni. With our radio telescopes, we see individual bright clouds of plasma that have been ejected from the innermost regions, and redirected by the puffed-up inner accretion disk." Credit to ICRAR.

"...shows jets from V404 Cygni's black hole behaving in a way never seen before on such short timescales."

"The jets appear to be rapidly rotating with high-speed clouds of plasma--potentially just minutes apart--shooting out of the black hole in different directions."

What Science Looks Like
Video 1: Video showing the evolution of the jet morphology over four hours on 22 June 2015.

Why
"What's different in V404 Cygni is that we think the disk of material and the black hole are misaligned. This appears to be causing the inner part of the disk to wobble like a spinning top and fire jets out in different directions as it changes orientation."

Artist's View  of Core of Jet Ejections in V404 Cygni
Artist's View  of Core of Jet Ejections in V404 Cygni, ICRAR.
"Artistic interpretation of jet ejections in V404 Cygni. With our radio telescopes, we see individual bright clouds of plasma that have been ejected from the innermost regions, and redirected by the puffed-up inner accretion disk." ICRAR.

 

"You can think of it like the wobble of a spinning top as it slows down--only in this case, the wobble is caused by Einstein's theory of general relativity."

 

Bottom LIne

Nobody in the neighborhood of this mis-matched couple are living quiet or secure lives.

 

V404 Cygni,
Wiki

 

Earlier Plasma Jets

Black Hole Plasma Planet Killer Beam

 

Mother of All Quasars?

MOAQ?

Astro Physics News: Early Universe Surprises, Super-massive black hole is ahead of its time

 

Black Hole With Jet
Artist's concept shows a black hole with an accretion disk -- a flat structure of material orbiting the black hole - and a jet of hot gas, called plasma, nustar171030a, NASA/JPL-Caltech.
Artist's concept shows a black hole with an accretion disk -- a flat structure of material orbiting the black hole - and a jet of hot gas, called plasma, nustar171030a, NASA/JPL-Caltech.

 

Recent Black Hole News

Black Hole Image Makes History

 

 

Star Chart

Cygnus the Swan,
Top of chart, at 21h

 

Location of V404 Cygni

20h 24m 03.83s

+33° 52′ 02.2″

(This puts it near n Cyg)

 

 

 

Astro-Physics News

May 2018 News of Man & Nature

 

 

 

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v404 cygni, black hole, binary system, accretion disk, plasma, plasma beams, plasma jets

 

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