Image of the Day: Hyper-Active Black Hole at the Heart of a Spectacular Galaxy
Follow the Daily Galaxy
Add Daily Galaxy to igoogle page AddThis Feed Button Join The Daily Galaxy Group on Facebook Follow The Daily Galaxy Group on twitter
 

« "Discovery of Alien Life in Next 10 Years" --One of Five 'X Factors' According to World's Leaders | Main | Was Water on Mars 10 Million Years Ago Enough to Support Life? --New Evidence from the Nakhla Meteorite »

February 05, 2013

Image of the Day: Hyper-Active Black Hole at the Heart of a Spectacular Galaxy

 

 

          Aspiralgalax

 

Galaxy Messier 106, located a little over 20 million light-years away, is one of the brightest and nearest spiral galaxies to our own. Despite its appearance, which looks much like countless other galaxies, it has a supermassive black hole, but this one is particularly active. Unlike the black hole at the center of the Milky Way, which pulls in wisps of gas only occasionally, Messier 106's black hole is actively gobbling up material. As the gas spirals towards the black hole, it heats up and emits powerful radiation.

Part of the emission from the center of Messier 106 is produced by a process that is somewhat similar to that in a laser - although here the process produces bright microwave radiation. As well as this microwave emission from Messier 106's heart, the galaxy has another startling feature - instead of two spiral arms, it appears to have four. Although the second pair of arms can be seen in visible light images as ghostly wisps of gas, as in this image, they are even more prominent in observations made outside of the visible spectrum, such as those using X-ray or radio waves.

Unlike the normal arms, these two extra arms are made up of hot gas rather than stars, and their origin remained unexplained until recently. Astronomers think that these, like the microwave emission from the galactic center, are caused by the black hole at Messier 106's heart, and so are a totally different phenomenon from the galaxy's normal, star-filled arms.

The extra arms appear to be an indirect result of jets of material produced by the violent churning of matter around the black hole. As these jets travel through the galactic matter they disrupt and heat up the surrounding gas, which in turn excites the denser gas in the galactic plane and causes it to glow brightly. This denser gas closer to the center of the galaxy is tightly-bound, and so the arms appear to be straight. However, the looser disc gas further out is blown above or below the disc in the opposite direction from the jet, so that the gas curves out of the disc—producing the arching red arms seen here.

Despite carrying his name, Messier 106 was neither discovered nor catalogued by the renowned 18th century astronomer Charles Messier. Discovered by his assistant, Pierre Méchain, the galaxy was never added to the catalogue in his lifetime. Along with six other objects discovered but not logged by the pair, Messier 106 was posthumously added to the Messier catalog in the 20th century.

Amateur astronomer Robert Gendler retrieved archival Hubble images of M 106 to assemble a mosaic of the centre of the galaxy. He then used his own and fellow astrophotographer Jay GaBany's observations of M 106 to combine with the Hubble data in areas where there was less coverage, and finally, to fill in the holes and gaps where no Hubble data existed.

The center of the galaxy is composed almost entirely of Hubble data taken by the Advanced Camera for Surveys, Wide Field Camera 3, and Wide Field and Planetary Camera 2 detectors. The outer spiral arms are predominantly HST data colourised with ground-based data taken by Gendler's and GaBany's 12.5-inch and 20-inch telescopes, located at very dark remote sites in New Mexico, USA. Gendler was a prizewinner in the recent Hubble's Hidden Treasures image processing competition.

The Daily Galaxy via ESA/Hubble Information Centre

Comments

20 million years ago, for all we know the entire galaxy has been gobbled up by the black hole.

WHAT GOES IN - MUST COME OUT
Once again we can read an article heavily influenced by the ancient and outdated thoughts of "gravity", "singularity" and "event horizon" and the usual "dark magics".
How is it that modern scientists have such a hard time imaging "what goes in, must come out" and thus just make the logical conclusion that we are talking of a CIRCUIT OF FORMATION, very much like Hurricane?
This must be because it is to simple to grasp in the very confused minds which is occuppied by theoretical mathemathics and laws that are contradicted (the galactic rotation anomaly which clearly and logically indicates a circuital movement in our galaxy).

Amazing; and here is site from 2009 saying jetting is producing mass: http://news.sciencemag.org/sciencenow/2009/12/01-02.html
What do we have here? A galaxy without a black hole, a bh without a galaxy and now a galaxy that combines the two. Are these two separate functions that combine?
Does it appear gravity is a product of slowing mass/energy?
Is this description above exactly what our galaxy is doing right now: fermi bubbles, fog, and geysers all the same? pouring magnetically charged material out of the bh with the same form of right-angle pour?

I found this science mag site looking for a quasar with one jet which is what I think produced the 'ribbon' at the edge of our universe. Where did this 'tear' come from? Perhaps it originated from our sun that underwent a controlled collapse of one hemisphere?

"Despite its appearance, which looks much like countless other galaxies, it has a supermassive black hole, but this one is particularly active."
"Unlike the black hole at the center of the Milky Way, which pulls in wisps of gas only occasionally, Messier 106's black hole is actively gobbling up material."
"As these jets travel through the galactic matter they disrupt and heat up the surrounding gas, which in turn excites the denser gas in the galactic plane and causes it to glow brightly."

I guess this one is a dying galaxy.


Post a comment

« "Discovery of Alien Life in Next 10 Years" --One of Five 'X Factors' According to World's Leaders | Main | Was Water on Mars 10 Million Years Ago Enough to Support Life? --New Evidence from the Nakhla Meteorite »




1


2


3


4


5


6


7


8





9


11


12


13


14


15

Our Partners

technology partners

A


19


B

About Us/Privacy Policy

For more information on The Daily Galaxy and to contact us please visit this page.



E