Hubble discovers mysterious black hole disc

Hubble discovers mysterious black hole disc
Artist's impression of the peculiar thin disc of material circling a supermassive black hole at the heart of the spiral galaxy NGC 3147, located 130 million light-years away. Credit: ESA/Hubble, M. Kornmesser

Astronomers using the NASA/ESA Hubble Space Telescope have observed an unexpected thin disc of material encircling a supermassive black hole at the heart of the spiral galaxy NGC 3147, located 130 million light-years away.

The presence of the black hole disc in such a low-luminosity active galaxy has astronomers surprised. Black holes in certain types of such as NGC 3147 are considered to be starving as there is insufficient gravitationally captured material to feed them regularly. It is therefore puzzling that there is a thin disc encircling a starving black hole that mimics the much larger discs found in extremely active galaxies.

Of particular interest, this disc of material circling the black hole offers a unique opportunity to test Albert Einstein's theories of relativity. The disc is so deeply embedded in the black hole's intense gravitational field that the from the gas disc is altered, according to these theories, giving astronomers a unique peek at the dynamic processes close to a black hole.

"We've never seen the effects of both general and special relativity in with this much clarity," said team member Marco Chiaberge of AURA for ESA, STScI and Johns Hopkins Univeristy.

The disc's material was measured by Hubble to be whirling around the black hole at more than 10% of the speed of light. At such extreme velocities, the gas appears to brighten as it travels toward Earth on one side, and dims as it speeds away from our planet on the other. This effect is known as relativistic beaming. Hubble's observations also show that the gas is embedded so deep in a gravitational well that light is struggling to escape, and therefore appears stretched to redder wavelengths. The black hole's mass is around 250 million times that of the Sun.

Hubble discovers mysterious black hole disc
A Hubble Space Telescope image of the spiral galaxy NGC 3147 appears next to an artist's illustration of the supermassive black hole residing at the galaxy’s core. Credit: Hubble Image: NASA, ESA, S. Bianchi (Università degli Studi Roma Tre University), A. Laor (Technion-Israel Institute of Technology), and M. Chiaberge (ESA, STScI, and JHU); Illustration: NASA, ESA, and A. Feild and L. Hustak (STScI)

"This is an intriguing peek at a disc very close to a black hole, so close that the velocities and the intensity of the gravitational pull are affecting how we see the photons of light," explained the study's first author, Stefano Bianchi, of Università degli Studi Roma Tre in Italy.

In order to study the matter swirling deep inside this disc, the researchers used the Hubble Space Telescope Imaging Spectrograph (STIS) instrument. This divides the light from an object into its many individual wavelengths to determine the object's speed, temperature, and other characteristics at very high precision. STIS was integral to effectively observing the low-luminosity region around the black hole, blocking out the galaxy's brilliant light.

The astronomers initially selected this galaxy to validate accepted models about lower-luminosity active galaxies: those with malnourished . These models predict that discs of material should form when ample amounts of gas are trapped by a black hole's strong gravitational pull, subsequently emitting lots of light and producing a brilliant beacon called a quasar.

Hubble discovers mysterious black hole disc
Credit: NASA, ESA, S. Bianchi (Università degli Studi Roma Tre University), A. Laor (Technion-Israel Institute of Technology), and M. Chiaberge (ESA, STScI, and JHU)

"The type of disc we see is a scaled-down quasar that we did not expect to exist," Bianchi explained. "It's the same type of disc we see in objects that are 1000 or even 100 000 times more luminous. The predictions of current models for very faint active galaxies clearly failed."

The team hopes to use Hubble to hunt for other very compact discs around low-luminosity black holes in similar active galaxies.

The team's paper will appear in the journal the Monthly Notices of the Royal Astronomical Society.


Explore further

Hubble observes tiny galaxy with big heart

More information: Stefano Bianchi et al. HST unveils a compact mildly relativistic broad-line region in the candidate true type 2 NGC 3147, Monthly Notices of the Royal Astronomical Society: Letters (2019). DOI: 10.1093/mnrasl/slz080
Citation: Hubble discovers mysterious black hole disc (2019, July 11) retrieved 22 July 2019 from https://phys.org/news/2019-07-hubble-mysterious-black-hole-disc.html
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Jul 11, 2019
Prob'ly an old system, too - calorie restricted diets are known to do that....

Jul 11, 2019
In search of black holes and dark matter astrophysicists are relying on indirect observations. It would seem that the measurement of the event horizon of a black hole directly would be a direct evidence. However, by the nature of a horizon, any real measurement of the event horizon will be indirect. The Event Horizon Telescope will get picture of the silhouette of the Sgr A* which is due to optical effects of spacetime outside of the event horizon. The result will be determined by the simple quality of the resulting image that does not depend on the properties of the spacetime within the image. So, it will be also indirect and an existence of BH is a hypothesis.
https://www.acade...ilky_Way

Jul 11, 2019
i would expect that eventually we will have observed a wild variety of "mysterious hyperboles"

random is as random does
the star crap gets pulled in whenever it wanders too close ti the gravitational attraction of a Black Hole

following "equal & opposite"
a lot pf the crap gets flung away
maybe to ballistic back into the accretion dusk, maybe not

we monkeys ohh & ahh at the temporary sparkles & makeshift flaring jets
pretending those fleeting phenomena have some sort of special meaning

anymore then the flint action on a lighter
banging some rocks together at a cosmic scale to impress the may-fly audience

Jul 12, 2019
The predictions of current models for very faint active galaxies clearly failed."

Because infalling material is not the principal source of luminosity. And because lower mass central core stars are less frequently in their active state, ejecting new matter and energy therefrom. This core is simply in the inactive state at the moment.

Quasars by contrast have grown so large (from within) and therefore more actively ejecting newly formed matter and energy, that they are in the active state most of the time.

Jul 12, 2019
Black Holes don't starve they wait, like a spider in a web.

Jul 12, 2019
The predictions of current models for very faint active galaxies clearly failed.

As usually.

Jul 12, 2019
The predictions of current models for very faint active galaxies clearly failed.

As usually.
.....and to make up foroit they come up with "artist's impressions".

Jul 13, 2019
Nice surprise!

But it is a surprise on the side of "physics told you so", since the large active galaxy supermassive black hole with disk model - called "AGN 1" class in the paper - survives in smaller galaxies. I suspect the reason for having a non-disk "AGN 2" class was because they haven't been able to detect the thin disk (and its low accretion rate) earlier.

Jul 15, 2019
or, to our present observational date , these faint, undetected BH/AD various versions pf galaxies are just too young

it's only been 14+/- billion years of existence.
hardly enough time to scratch their own butts!

give 'em a few more tens of billions of years of close-misses & outright collisions

they'll perk right up!

eventually

"Time & Gravity
await no wooloon"


Jul 15, 2019
Lol, what a bunch of jokers.
Hubble's observations also show that the gas is embedded so deep in a gravitational well that light is struggling to escape, and therefore appears stretched to redder wavelengths.
This proves GR and SR wrong, you nincompoops

Jul 15, 2019
You deserve better information than the physorg biased coverage. This is a bigger story than told here.

https://www.unive...ck-hole/

It was therefore rather surprising to see a disk encircling the black hole in NGC 3147 that resembles the more powerful ones found around much larger SMBHs at the center of extremely active galaxies. As Ari Laor of the Technion-Israel Institute of Technology, explained: "We thought this was the best candidate to confirm that below certain luminosities, the accretion disk doesn't exist anymore. What we saw was something completely unexpected. We found gas in motion producing features we can explain only as being produced by material rotating in a thin disk very close to the black hole."


Relativity is a math model, accurate only within certain limits. Infinite density is illogical. There must be a counterpoint.

Jul 15, 2019
& yet the hypocrite scammers are using SR/GR/QM based technology to communicate their lunatic ravings
that SR/GR/QM sciences are completely wrong & cannot work

hmm? i'm sure but that may be "Truth" in the fairyland dimension they inhabit?

res i am laughing at you
for saying you believe in magic
while tour fingers are tapping your lies onto a keyboard

Jul 15, 2019
Lol, what a bunch of jokers.
Hubble's observations also show that the gas is embedded so deep in a gravitational well that light is struggling to escape, and therefore appears stretched to redder wavelengths.
This proves GR and SR wrong, you nincompoops


No it doesn't you idiot.

Jul 15, 2019
Thank Heaven For Artist Simulations

The disc's material
Measured by Hubble
Whirling around the black hole
More than 10% of the speed of light
At such extreme velocities
The gas appears to brighten
As it travels toward Earth on one side
Then dims as it speeds away from our planet on the other
This effect known as relativistic beaming
Hubble's observations
Show the gas is embedded
Deep in its gravitational well
That light is struggling to escape
Appears stretched to redder wavelengths
The black hole's mass is around 250 million times that of the Sun
Hubble Space Telescope observed a disc of material encircling this black hole
In the spiral galaxy NGC 3147
130 million light-years away

Pity we have to make do
Observing mini blackholes millions of Lys away of 250million solar mass's
When
Not 25,000 Lys away at 4.3million solar mass
For as its relative brightness is d²
Makes Sagittarius*A
465,000 times brighter and larger than NGC 3147

Jul 15, 2019
Lol, what a bunch of jokers.
Hubble's observations also show that the gas is embedded so deep in a gravitational well that light is struggling to escape, and therefore appears stretched to redder wavelengths.
This proves GR and SR wrong, you nincompoops


No it doesn't you idiot.
Yes it does you half wit

Jul 15, 2019
Light Stretched To Redder Wavelengths

For as Hubble's observations show the gas embedded so deep in its gravitational well
Light is struggling to escape
Appearing stretched to redder wavelengths
Even as this reddening occurs at 130million Lys
This reddening occurs at 25thousand Lys
Foreth as NGC 3147 is a starving malnourished blackhole
Due to Sagittarius*A quiescence
Sagittarius*A is also a malnourished blackhole
For as Sagittarius*A is relatively brighter because of its closeness

Sagittarius*A
Also has gas embedded so deep in its gravitational well
Its light is struggling to escape
Appearing stretched to redder wavelengths

Jul 15, 2019
Lol, what a bunch of jokers.
Hubble's observations also show that the gas is embedded so deep in a gravitational well that light is struggling to escape, and therefore appears stretched to redder wavelengths.
This proves GR and SR wrong, you nincompoops


No it doesn't you idiot.
Yes it does you half wit


Really, dumbo? And where is this mentioned in the paper? Or any other paper? Idiot.

Jul 15, 2019
Gravity wells causing redshift, and this is "proof" "GR is wrong?"

What an idiot.

Jul 15, 2019
Why are Astronomers always 'surprised'? Didn't their 'general consensus work out for them this time?
Black Holes are the leeches and amoebas of the Universe. Instead of blood and microscopic organisms, they` consume all kinds of Matter that happen to fall into their "sphere of influence". One might call it "the law of the jungle" - consume and/or be consumed". Of course, Astronomers don't see it that way, and such as Castrovagina and Schneib and some others will pooh-pooh the idea due to their not understanding that what happens in the microscopic world can also occur at macro at all levels. There are often misunderstandings as to what is alive and what is not.

Jul 15, 2019
"why are astronomers surprised?"

cause as scientists they have a working method of empirical experimentation
that constantly discovers new data, creating new ideas

unlike sillyegghead & all the other looneyticks in Bedlam

who base their fakery on sumerian mythology as missed-translated by drunken religious buffoons

& the proof is in the sanguinary pudding as none of these simpletons have ever invented any working technology based on their delusions to superior knowledge
that police investigators have proven that these frauds had outright stolen or plagiarize from the real creators,
clever stage illusionists

& it really pisses off these woomongers & fakirs too no end...
that Real Scientists are delighted by new discoveries challenging their prior assumptions & wildest speculations

Jul 15, 2019
https://imgur.com.../ZqtLd7i

This is the infantile lizardman's conception of its religious icon.

Jul 16, 2019
Lol, what a bunch of jokers.
Hubble's observations also show that the gas is embedded so deep in a gravitational well that light is struggling to escape, and therefore appears stretched to redder wavelengths.
This proves GR and SR wrong, you nincompoops


No it doesn't you idiot.
Yes it does you half wit


Really, dumbo? And where is this mentioned in the paper? Or any other paper? Idiot.
you half wit, freq is reducing in gravity well or increasing?

Jul 16, 2019
Gravity wells causing redshift, and this is "proof" "GR is wrong?"

What an idiot.
Arschloch, hast du kein sinn am arsch?
go back to school and learn some physics

Jul 16, 2019
Gravity wells causing redshift, and this is "proof" "GR is wrong?"

What an idiot.
Arschloch, hast du kein sinn am arsch?
go back to school and learn some physics


We understand physics, dumbo. It is you that seems to be struggling. Which is why you are the only person on the planet claiming that this observation invalidates SR and GR. You are just another unqualified crank, with zero idea about the science, who wants to look important by posting drivel in a comments section. Methinks Dunning-Kruger is probably involved here.

Jul 16, 2019
you half wit, freq is reducing in gravity well or increasing?


Science isn't your strong point is it (rhetorical)? Read the article;

Hubble's observations also show that the gas is embedded so deep in a gravitational well that light is struggling to escape, and therefore appears ***stretched to redder wavelengths***.


So, I'm guessing that comprehension is also a struggle for you. Now have a read of;

https://en.wikipe...redshift

More specifically the term refers to the ***shift of wavelength of a photon to longer wavelength (the red side in an optical spectrum)*** when observed from a point in a lower gravitational field. In the latter case the 'clock' is the frequency of the photon and a lower frequency is the same as a longer ("redder") wavelength.


So, confirmation of GR. Now head back to school and finish your education.

Jul 20, 2019
My word you are beyond repair you half witted monkey.
Lower freq means time dilation or compression?

Heck you go back to kindergarten

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