we all know that there is giant massive black hole at the center of our milky way galaxy. The new study suggest that this super massive black hole is not only responsible for the shape and drive the flows of gas at core, but along with this massive magnetic fields is also existing in the core.
A mixture of gas and dust particles that continuously swirls
down into the center of the galaxy. It forms the tight compact rapidly rotating disk and the gas particles are heated up to millions of degree celsius and attain the plasma state. This spinning disk of plasma create a strong magnetic line of force along the disk and and over themselves.
While that strong magnetic field is a major player in the dynamics of the accretion disk around the black hole, astronomers had previously thought that it had limited ability to influence anything much beyond that.
But then they looked at dust. Using the Stratospheric Observatory for Infrared Astronomy (SOFIA, also know as the big airplane+telescope contraption), astronomers at the Universities Space Research Association examined the center of our Milky Way in detail. They looked out at the grain of dust particles at the disk, they spinning perpendicularly to the magnetic field and the dust particles polarize the infrared lights falling on them, and this polarization pattern reveals the shape and strength of the magnetic field.
All these leads into the conclusion that these magnetic field is stronger and more widely distributed, so it can shape the direction of flow of gas well before it reaches the inner acceleration disk and event horizon. previous theory suggest that black hole gravity is alone responsible for the gas movement in black hole but, this shows that magnetic field also plays an important role in this
Related post : how do we detect black holes ?
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| Magnetic streamlines (that look like a fingerprint) overlaid on a composite image of the center of our galaxy, near the supermassive black hole. Image credit: NASA/SOFIA/L. Proudfit, ESA /Herschel/Hubble Space Telescope |
A mixture of gas and dust particles that continuously swirls
down into the center of the galaxy. It forms the tight compact rapidly rotating disk and the gas particles are heated up to millions of degree celsius and attain the plasma state. This spinning disk of plasma create a strong magnetic line of force along the disk and and over themselves.
While that strong magnetic field is a major player in the dynamics of the accretion disk around the black hole, astronomers had previously thought that it had limited ability to influence anything much beyond that.
But then they looked at dust. Using the Stratospheric Observatory for Infrared Astronomy (SOFIA, also know as the big airplane+telescope contraption), astronomers at the Universities Space Research Association examined the center of our Milky Way in detail. They looked out at the grain of dust particles at the disk, they spinning perpendicularly to the magnetic field and the dust particles polarize the infrared lights falling on them, and this polarization pattern reveals the shape and strength of the magnetic field.
All these leads into the conclusion that these magnetic field is stronger and more widely distributed, so it can shape the direction of flow of gas well before it reaches the inner acceleration disk and event horizon. previous theory suggest that black hole gravity is alone responsible for the gas movement in black hole but, this shows that magnetic field also plays an important role in this
Related post : how do we detect black holes ?
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