Black hole is 30 times expected size

September 24, 2015
A still frame from a movie, illustrating an active galactic nucleus, with jets of material flowing from out from a central black hole. Credit: NASA / Dana Berry / SkyWorks Digital

The central supermassive black hole of a recently discovered galaxy is far larger than should be possible, according to current theories of galactic evolution. New work, carried out by astronomers at Keele University and the University of Central Lancashire, shows that the black hole is much more massive than it should be, compared to the mass of the galaxy around it. The scientists publish their results in a paper in Monthly Notices of the Royal Astronomical Society.

The galaxy, SAGE0536AGN, was initially discovered with NASA's Spitzer space telescope in infrared light. Thought to be at least 9 billion years old, it contains an (AGN), an incredibly bright object resulting from the accretion of gas by a central . The gas is accelerated to high velocities due to the black hole's immense gravitational field, causing this gas to emit light.

The team has now also confirmed the presence of the black hole by measuring the speed of the gas moving around it. Using the Southern African Large Telescope, the scientists observed that an emission line of hydrogen in the galaxy spectrum (where light is dispersed into its different colours – a similar effect is seen using a prism) is broadened through the Doppler Effect, where the wavelength (colour) of light from objects is blue- or red-shifted depending on whether they are moving towards or away from us. The degree of broadening implies that the gas is moving around at high speed, a result of the strong gravitational field of the black hole.

These data have been used to calculate the black hole's mass: the more massive the black hole, the broader the . The black hole in SAGE0536AGN was found to be 350 million times the mass of the Sun. But the mass of the galaxy itself, obtained through measurements of the movement of its stars, has been calculated to be 25 billion solar masses. This is seventy times larger than that of the black hole, but the black hole is still thirty times larger than expected for this size of galaxy.

"Galaxies have a vast mass, and so do the in their cores. This one though is really too big for its boots – it simply shouldn't be possible for it to be so large", said Dr Jacco van Loon, an astrophysicist at Keele University and the lead author on the new paper.

In ordinary galaxies the black hole would grow at the same rate as the galaxy, but in SAGE0536AGN the black hole has grown much faster, or the galaxy stopped growing prematurely. Because this galaxy was found by accident, there may be more such objects waiting to be discovered. Time will tell whether SAGE0536AGN really is an oddball, or simply the first in a new class of .

Explore further: Oxymoronic black hole RGG 118 provides clues to growth

More information: "An evolutionary missing link? A modest-mass early-type galaxy hosting an oversized nuclear black hole." mnras.oxfordjournals.org/content/453/3/2341

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9 comments

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ogg_ogg
2.2 / 5 (10) Sep 24, 2015
Junk writing. "should be possible" is rubbish. The study authors present several alternative explanations for their observations. I sure wish these pieces were signed. That would allow me to ignore those authors who are misleading (obviously by intention). The fact that they are not, indicates that phys.org isn't all it should be.
Bigbangcon
2.3 / 5 (18) Sep 24, 2015
["Galaxies have a vast mass, and so do the black holes in their cores. This one though is really too big for its boots – it simply shouldn't be possible for it to be so large", said Dr Jacco van Loon, an astrophysicist at Keele University and the lead author on the new paper.]

The "Black Hole" is a Big Hole in the official science of astrophysics and cosmology. The more findings they make in astrophysics, the bigger becomes the Big Hole and the greater the extent of the bankruptcy of their theories and their premise!

But our confident and brave astrophysicists gleefully march on to dig more into their Big Hole! It could be a great comedy show, was it not for the sad fact that the poor public has to feed them and pay for their toys and their games!

Tuxford
1 / 5 (8) Sep 24, 2015
... but in SAGE0536AGN the black hole has grown much faster, or the galaxy stopped growing prematurely.

Not surprising here. I have predicted such, since the core stars grow at an ever increasing rate as there mass grows from new matter formed there-inside. Eventually, the core star must grow so large that merger maniac accretion theories fall apart. Here we have just more evidence in support of LaViolette's Continuous Creation model, however inconvenient. See my comments in the first two:

http://phys.org/n...als.html

http://phys.org/n...ter.html

http://www.huffin...665.html

http://phys.org/n...wth.html

http://phys.org/n...axy.html
Captain Stumpy
4.4 / 5 (13) Sep 24, 2015
I sure wish these pieces were signed. That would allow me to ignore those authors
@ogg_ogg
1- it is Oxford Journal and Royal Astronomical society Monthly notice
2- the above article is a bot/other derived article also distributed elsewhere
3- Phys.org is a pop-sci clearing house for science articles, so you will find these in all genra
4- the article is also likely an interpretation of the work found in the linked study: try reading the studies
5- most of the articles found on PO are also printed elsewhere, verbatim. you can find the other journals or links demonstrating this at the bottom of each article. feel free to simply ignore the journals of science that you don't like
jonesdave
4.5 / 5 (8) Sep 24, 2015
""The central supermassive black hole of a recently discovered galaxy is far larger than should be possible, according to current theories of galactic evolution"

In the beginning was established the order and we now see the reverse process of gradual transition of order to chaos because of entropy with which God reminds us that sin leads to corruption and spirit is on higher level than matter. Matter is temporary, but the spirit is eternal.


Bollocks.
viko_mx
1 / 5 (7) Sep 25, 2015
The ideology of cosmic evolution connected with mythology of biologic evolution for which must ensure needed for visionaries billions of years is corrupted from the beginning. This is the reason why bold hypothesis accepted by evolutions meet so many contradiction with physical reality. It is useless for explaining it. Like every other people who do no want to take responsibility, evolutionist do not like reality in which we are living. So such kind of people prefer to invent their own virtual reality without God.
docile
Sep 25, 2015
This comment has been removed by a moderator.
docile
Sep 25, 2015
This comment has been removed by a moderator.
katesisco
2.3 / 5 (3) Sep 25, 2015
In the LMC there is a sun who shouldn't be. Impossibly large. Which implies that there is a process creating/holding matter together which defies physics understanding. One suspect impossible magnetic fields.

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