Towering balloon-like structures discovered near center of the Milky Way

Giant balloon-like structures discovered at center of Milky Way
A radio image of the centerof the Milky Way with a portion of theMeerKAT telescope array in the foreground. The plane of the galaxy ismarked by a series ofbright features, exploded stars and regionswhere new stars are being born, and runs diagonally across the imagefrom lower right to top center.The black hole at the centerof theMilky Way is hidden in the brightest of these extended regions.The radio bubbles extend from betweenthetwonearest antennasto the upperright corner.Many magnetized filamentscan be seen runningparallel to the bubbles.In this composite view, the sky to the left of the second nearest antenna is the night sky visible to the unaided eye, and the radio image to the right has been enlarged to highlight its fine features. Credit: SARAO/Oxford/NRAO

An international team of astronomers, including Northwestern University's Farhad Yusef-Zadeh, has discovered one of the largest structures ever observed in the Milky Way. A newly spotted pair of radio-emitting bubbles reach hundreds of light-years tall, dwarfing all other structures in the central region of the galaxy.

The team believes the enormous, hourglass-shaped structure likely is the result of a phenomenally energetic burst that erupted near the Milky Way's several million years ago.

"The center of our galaxy is relatively calm when compared to other galaxies with very active central black holes," said Ian Heywood of the University of Oxford, first author of study. "Even so, the Milky Way's central black hole can—from time to time—become uncharacteristically active, flaring up as it periodically devours massive clumps of dust and gas. It's possible that one such feeding frenzy triggered powerful outbursts that inflated this previously unseen feature."

The paper will publish on Sept. 11 in the journal Nature. The study's co-authors represent 15 institutions, including Northwestern, Oxford, the South African Radio Astronomy Observatory in Cape Town and the National Radio Astronomy Observatory in Charlottesville, Virginia.

For this work, the team used the South African Radio Astronomy Observatory (SARAO) MeerKAT telescope, the largest science project in Africa. This is the first paper detailing research completed with MeerKAT's full 64-dish array since its launch in July 2018.

Mysteries of the Milky Way

More turbulent and unusually active compared to rest of the Milky Way, the environment surrounding our galaxy's central black hole holds many mysteries. Northwestern's Yusef Zadeh, a senior author of the paper, has dedicated his career to studying the physical processes that occur in the Milky Way's mystifying center.

Giant balloon-like structures discovered at center of Milky Way
A radio image of the central portionsof the Milky Way galaxy.The plane of the galaxy is marked by a series of bright features, exploded stars and regions where new stars are being born, and runs horizontallythrough the image. The black hole at the centerof the Milky Way is hidden in the brightest of these extended regions.The radio bubblesdiscovered by MeerKATextend vertically above and below the plane of the galaxy.Manymagnetized filamentscan be seen running parallel to the bubbles. Credit: SARAO/Oxford

In the early 1980s, Yusef-Zadeh discovered large-scale, highly organized magnetic filaments in the center of the Milky Way, 25,000 light-years from Earth. While their origin has remained an unsolved mystery ever since, the filaments are radio structures stretching tens of light-years long and one light-year wide.

"The radio bubbles discovered with MeerKAT now shed light on the origin of the filaments," Yusef-Zadeh said. "Almost all of the more than 100 filaments are confined by the radio bubbles."

Yusef-Zadeh is a professor of physics and astronomy at Northwestern's Weinberg College of Arts and Sciences and a member of CIERA (Center for Interdisciplinary Exploration and Research in Astrophysics), an endowed research center at Northwestern focused on advancing astrophysics studies with an emphasis on interdisciplinary connections.

The researchers believe that the close association of the filaments with the bubbles implies that the energetic event that created the radio bubbles also is responsible for accelerating the electrons required to produce the radio emission from the magnetized filaments.

Tracing energetic regions

Using MeerKAT, the research team mapped out broad regions in the center of the galaxy, conducting observations at wavelengths near 23 centimeters. Radio emission of this kind is generated in a process known as synchrotron radiation, in which electrons moving at close to lightspeed interact with magnetic fields. This produces a characteristic radio signal that can be used to trace energetic regions in space. The radio light seen by MeerKAT easily penetrates the dense clouds of dust that block visible light from the center of the galaxy.

By examining the nearly identical extent and morphology of the twin bubbles, the researchers think they have found convincing evidence that these features were formed from a violent eruption that over a short period of time punched through the interstellar medium in opposite directions.

"These enormous bubbles have until now been hidden by the glare of extremely bright radio emission from the center of the galaxy," said Fernando Camilo of SARAO in Cape Town and co-author on the paper. "Teasing out the bubbles from the background noise was a technical tour de force, only made possible by MeerKAT's unique characteristics and ideal location. With this unexpected discovery we're witnessing in the Milky Way a novel manifestation of galaxy-scale outflows of matter and energy, ultimately governed by the central black hole."


Explore further

Detecting dusty clouds and stars in our galaxy in a new way

More information: Inflation of 430-parsec bipolar radio bubbles in the Galactic Centre by an energetic event, Nature (2019). DOI: 10.1038/s41586-019-1532-5 , https://nature.com/articles/s41586-019-1532-5
Journal information: Nature

Citation: Towering balloon-like structures discovered near center of the Milky Way (2019, September 11) retrieved 19 October 2019 from https://phys.org/news/2019-09-towering-balloon-like-center-milky.html
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Sep 11, 2019
Hourglass shaped feature, that is z-pinched plasma filaments. The helical filaments are result of electric currents flowing through the plasma. All of this evidence supports Plasma Cosmology and the Electric Universe.

Sep 11, 2019
Hourglass shaped feature, that is z-pinched plasma filaments. The helical filaments are result of electric currents flowing through the plasma. All of this evidence supports Plasma Cosmology and the Electric Universe.


Hahahahahahahahha! Nope, you just made that up. It is a bad habit. You should desist forthwith.

Sep 11, 2019
Lest we forget the radio signatures of the electric currents flowing in the plasma. Clearly we live in and Electric Universe, not the dark pseudosciences pushed by the darkists.

Sep 11, 2019
Hint for the clueless;

Z-pinch: >>>>>>>>>>> * >>>>>>>>>>


Planetary nebulae, radio 'bubble' etc:

<<<<<<<<<< * >>>>>>>>>>>

Not a z-pinch! EU plasma ignoramuses strike again!


Sep 11, 2019
Lest we forget the radio signatures of the electric currents flowing in the plasma. Clearly we live in and Electric Universe, not the dark pseudosciences pushed by the darkists.


Wrong. Trivially. Current equals synchrotron; synchrotron does not always equal current. In fact it mostly doesn't.

Sep 11, 2019
It's just a weather balloon guys

/s

Sep 11, 2019
Lest we forget the radio signatures of the electric currents flowing in the plasma. Clearly we live in and Electric Universe, not the dark pseudosciences pushed by the darkists.


Wrong. Trivially. Current equals synchrotron; synchrotron does not always equal current. In fact it mostly doesn't.

Except in plasma, of which our Universe is 99.99%...

Sep 11, 2019
There are a lot of cosmic structures - cavities with tenuous, high temperature gas. The nomenclature of these cavities is not finally established yet, but in general there are cavities with a characteristic size of 10 pc – bubbles, about 100 pc – superbubbles, and extended up to 1 kpc or more – supershells. There are a lot of global outflows in our and other star-forming galaxies that percolate galactic disk and are streaming away in galactic halo. These are so called chimneys, fountains, winds and high velocity clouds. All of these structures have an enigmatic nature.
https://www.acade...nd_Winds

Sep 11, 2019
It's just a weather balloon guys

/s
says Fyrewolf

LOL That's what they said about the UFO crash-landing in Roswell, New Mexico back in 1947.

Sep 11, 2019
Hourglass shaped feature, that is z-pinched plasma filaments. The helical filaments are result of electric currents flowing through the plasma. All of this evidence supports Plasma Cosmology and the Electric Universe.
The features are effects, not causes.

"Even so, the Milky Way's central black hole can—from time to time—become uncharacteristically active, flaring up as it periodically devours massive clumps of dust and gas."

Let's not get some haywire GUT-horse before the plasma cart.

Sep 11, 2019
It's just a weather balloon guys

/s
says Fyrewolf

LOL That's what they said about the UFO crash-landing in Roswell, New Mexico back in 1947.
I say swamp-gas; that's what it is. Or the planet Mercury. I'd also suggest ball-lightning, but that would get a certain indefatigable party greatly excited.

Sep 12, 2019
A summary of the article from the experts who spend their days studying why and what goes on at the galactic core:
Some events happened at the core sometime in the past. Two major events coincide and maybe they are related. Not yet sure but they are in the same area. Possibly more discoveries will be made in the future.

And that is all they have to say on the matter. It is extremely doubtful that folks that spend less than a hour a week on the subject have more answers than scientists who spend all day every day studying what happened using orbital telescopes. ground based radio telescope arrays, and massively parallel computers.
Seriously.

Sep 12, 2019
Lest we forget the radio signatures of the electric currents flowing in the plasma. Clearly we live in and Electric Universe, not the dark pseudosciences pushed by the darkists.


Wrong. Trivially. Current equals synchrotron; synchrotron does not always equal current. In fact it mostly doesn't.

Except in plasma, of which our Universe is 99.99%...


Wrong. Electrons spiralling in a magnetic field will produce cyclotron or synchrotron radiation. Accompanied by ions or otherwise. Learn the subject, or restrict yourself to Velikovsky.

Sep 12, 2019
Hourglass shaped feature, that is z-pinched plasma filaments. The helical filaments are result of electric currents flowing through the plasma. All of this evidence supports Plasma Cosmology and the Electric Universe.

"Plasma" does not necessarily equal any useful amount of electricity...

Sep 12, 2019
"The new discovery isn't the first giant bubble seen escaping from the Milky Way. In 2010, astronomers discovered two similar giant bubbles of gamma ray radiation blossoming above and below the galaxy, extending a combined length of 50,000 light-years. Now known as the Fermi bubbles, the origin of these balloons of radiation is still unexplained, but likely linked to the galaxy's central supermassive black hole. The astronomers on this latest research think that the new radio bubbles they've discovered may have been caused by a smaller but similar event.

... "Other observations taken across the electromagnetic spectrum have revealed evidence for a burst of activity several million years ago, and these new observations provide another clue. Taken together, the results show that the Milky Way blows bubbles on different scales.""

[ https://astronomy...s-center ]

@danR: Yes. Not plasma phenomena, gravitation/fusion causes.

Sep 12, 2019
Lest we forget the radio signatures of the electric currents flowing in the plasma. Clearly we live in and Electric Universe, not the dark pseudosciences pushed by the darkists.


Wrong. Trivially. Current equals synchrotron; synchrotron does not always equal current. In fact it mostly doesn't.

Except in plasma, of which our Universe is 99.99%...


Wrong. Electrons spiralling in a magnetic field will produce cyclotron or synchrotron radiation. Accompanied by ions or otherwise. Learn the subject, or restrict yourself to Velikovsky.

Electrons accelerating in a magnetic field, driven by electric currents.

Sep 12, 2019
Electrons accelerating in a magnetic field, driven by electric currents.


Nope.

Sep 12, 2019
Electrons accelerating in a magnetic field, driven by electric currents.


Nope.

Good one, so concise! What do you expect is causing the electrons to spiral then?

Sep 12, 2019
@danR: Yes. Not plasma phenomena, gravitation/fusion causes.

Yet, fusion is a plasma phenomenon... LOL!

Sep 12, 2019
Electrons accelerating in a magnetic field, driven by electric currents.


Nope.

Good one, so concise! What do you expect is causing the electrons to spiral then?


Why don't you read the paper? Is this a comments section, or has it turned into Education for Cranks 101?

Sep 12, 2019
@danR: Yes. Not plasma phenomena, gravitation/fusion causes.

Yet, fusion is a plasma phenomenon... LOL!


Really? What is causing two H atoms to fuse at the start of the p-p chain?

Sep 12, 2019
Why don't you read the paper? Is this a comments section, or has it turned into Education for Cranks 101?


OK. From the paper;

Although this age is greater than the synchrotron lifetime given above,
the acceleration of relativistic electrons is likely from shocks generated
in the initiating event. As such, the shocks will continue to propagate
and accelerate fresh radiating electrons.


Why are they spiralling? That is what electrons (and ions) do in a magnetic field! Now, if that field is considerable, then the electrons (and ions) will spiral at a greater velocity. Given the violence of these shocks, it would hardly be surprising that the magnetic field already in existence was not compressed, and therefore magnified in strength. A CME will do this to the magnetic field around a comet, for instance. And a CME is nothing in comparison to this event.

Sep 12, 2019
I understand why they spiral (accelerate), and their guess that it is caused by shocks is typical for plasma ignoramuses.
Now, if that field is considerable, then the electrons (and ions) will spiral at a greater velocity.

This is meaningless drivel.

Sep 12, 2019
I understand why they spiral (accelerate), and their guess that it is caused by shocks is typical for plasma ignoramuses.
Now, if that field is considerable, then the electrons (and ions) will spiral at a greater velocity.

This is meaningless drivel.


Nope, it is accurate.

Sep 12, 2019
This is meaningless drivel.


You mean like stars having stable elliptical orbits around a plasmoid, caused by electric charge? lol.

Are you excited for the Nobel Prize you'll undoubtedly receive for this new physics?

Sep 14, 2019
Hourglass shaped feature, that is z-pinched plasma filaments. The helical filaments are result of electric currents flowing through the plasma. All of this evidence supports Plasma Cosmology and the Electric Universe.


Hahahahahahahahha! Nope, you just made that up. It is a bad habit. You should desist forthwith.

Sep 14, 2019
Too be fair if he made it up then nuclear fusion wouldn't be possible...

Sep 14, 2019
Too be fair if he made it up then nuclear fusion wouldn't be possible...


Huh? Nuclear fusion happens in the Sun. Has been doing for ~ 4.5 Ga. It has nothing to do with z-pinch woo, nor with this non z-pinch observation. So yes, he made it up!

Sep 14, 2019
Too be fair if he made it up then nuclear fusion wouldn't be possible...


Huh? Nuclear fusion happens in the Sun. Has been doing for ~ 4.5 Ga. It has nothing to do with z-pinch woo, nor with this non z-pinch observation. So yes, he made it up!

Regardless of jonesdumb's fanciful pontifications, gravity confined fusion has never been observed nor attempted. However, z-pinch fusion is a daily occurrence in laboratories on Earth.

Sep 14, 2019
Regardless of jonesdumb's fanciful pontifications, gravity confined fusion has never been observed nor attempted. However, z-pinch fusion is a daily occurrence in laboratories on Earth.


Wrong. Gravity caused fusion is observed from the neutrinos the Sun produces. These can only come from p-p chain fusion. And that requires high temperature and pressure.
We would not even attempt p-p fusion in the laboratory - it is very inefficient. That is why they use deuterium and tritium.

Sep 14, 2019
jonesdumb making more disingenuous comments, it is purely hypothetical what occurs on or in the Sun. jonesdumb clearly doesn't understand how science works.

Sep 14, 2019
jonesdumb making more disingenuous comments, it is purely hypothetical what occurs on or in the Sun. jonesdumb clearly doesn't understand how science works.


Liar. I know perfectly well how science works. I know that the neutrino spectrum was predicted before we ever saw it. I know it is now detected to be just as predicted. Only one way you are getting those neutrinos with that energy spectrum - p-p fusion. And the fact that we aren't being fried by gamma tells us that it must be in the core.

Sep 14, 2019
jonesdumb making more disingenuous comments, it is purely hypothetical what occurs on or in the Sun. jonesdumb clearly doesn't understand how science works.


Liar. I know perfectly well how science works. I know that the neutrino spectrum was predicted before we ever saw it. I know it is now detected to be just as predicted. Only one way you are getting those neutrinos with that energy spectrum - p-p fusion. And the fact that we aren't being fried by gamma tells us that it must be in the core.

Sep 14, 2019
jonesdumb making more disingenuous comments, it is purely hypothetical what occurs on or in the Sun. jonesdumb clearly doesn't understand how science works.


Liar. I know perfectly well how science works. I know that the neutrino spectrum was predicted before we ever saw it. I know it is now detected to be just as predicted. Only one way you are getting those neutrinos with that energy spectrum - p-p fusion. And the fact that we aren't being fried by gamma tells us that it must be in the core.

More lies by jonesdumb, neutrino count doesn't match predictions. He still doesn't understand radiation physics. You shouldn't post on things you don't understand.

Sep 15, 2019

More lies by jonesdumb, neutrino count doesn't match predictions. He still doesn't understand radiation physics. You shouldn't post on things you don't understand.


Neutrino count does match predictions. Stop lying, you clown. And what the hell are you babbling on about 'radiation physics' for? Instead of making sh!t up, actually show us some science. And I'm not talking about links to Youtube woo. Real science. Like this;

Neutrinos from the primary proton-proton fusion process in the Sun
Borexino Collaboration
https://collabora...n-the-su


Sep 15, 2019
They been tellin' that lie about neutrino counts for a decade.

They never reply when someone points it out.

Sep 15, 2019
From the abstract of your nonsense;
"Although solar neutrinos from secondary processes have been observed, proving the nuclear origin of the Sun's energy and contributing to the discovery of neutrino oscillations, those from proton–proton fusion have hitherto eluded direct detection."

So they wrote up some ad hoc pseudoscientific claptrap and hid it behind a paywall. Good try jonesdumb.

Sep 15, 2019
So they wrote up some ad hoc pseudoscientific claptrap and hid it behind a paywall. Good try jonesdumb.


Is another lie. Don't you get sick of having to lie to prop up your loony cult's belief system? Nothing ad hoc about detection. Ad hoc would be inventing invisible currents to power the Sun, and connect galaxies!
And if you really want to read the paper, that currently has ~ 300 citations;

https://fais.uj.e...s....pdf

Sep 15, 2019
So they wrote up some ad hoc pseudoscientific claptrap and hid it behind a paywall. Good try jonesdumb.


Is another lie. Don't you get sick of having to lie to prop up your loony cult's belief system? Nothing ad hoc about detection. Ad hoc would be inventing invisible currents to power the Sun, and connect galaxies!
And if you really want to read the paper, that currently has ~ 300 citations;

https://fais.uj.e...s....pdf

So "eluded direct detection" indicates detection to jonesdumb...
And then he incites to number of "votes" as if this is an exercise in the democratic process. LOL!

Sep 15, 2019
So "eluded direct detection" indicates detection to jonesdumb...
And then he incites to number of "votes" as if this is an exercise in the democratic process. LOL!


So, let's add comprehension to th list of basic skills that you lack!

Abstract:
Although solar neutrinos from secondary processes have been observed, proving the nuclear origin of the Sun's energy and contributing to the discovery of neutrino oscillations, those from proton–proton fusion **have hitherto eluded direct detection***........


Now, what is the meaning of the word "hitherto"?

until now or until a particular time:


https://dictionar...hitherto
Back to the abstract:
....Here we report spectral observations of pp neutrinos, demonstrating that about 99 per cent of the power of the Sun, 3.84 x 10^33 ergs per second, is generated by the proton–proton fusion process.


So, for the hard of thinking - they hadn't been detected up until when they were.


Sep 15, 2019
The "detection" of which is only applicable via statistical gymnastics.

Sep 15, 2019
The "detection" of which is only applicable via statistical gymnastics.


More lies. Not good at science, are you (rhetorical)?

Sep 15, 2019
Not hardly, it is open knowledge the ratios of colors do not match prediction. It's only the assumption that the colors change in just the right quantities to support your guesswork. And it should also be mentioned, the detection of neutrinos doesn't falsify the Electric Sun in any way, fusion still occurs.

Sep 15, 2019
Not hardly, it is open knowledge the ratios of colors do not match prediction. It's only the assumption that the colors change in just the right quantities to support your guesswork. And it should also be mentioned, the detection of neutrinos doesn't falsify the Electric Sun in any way, fusion still occurs.


What colours? Huh? Flavours, you mean? And yes, they do match prediction. Want another paper to misunderstand? And the laughably silly electric sun woo is trivially falsified by neutrinos. Amount, for a start; that tells us that the amount of fusion predicted to be needed to match the energy output of the Sun is occurring. Energy spectrum; that tells us that it is definitely p-p fusion. Lack of gamma; this shows us that the fusion is happening deep within the Sun.
There are loads of reasons why the electric sun woo is not taken seriously by actual scientists. The list is too long for here. It is the irrational fantasy of Velikovskian loons.

Sep 15, 2019
There are loads of reasons why the electric sun woo is not taken seriously by actual scientists.

Not actual scientists but plasma ignoramuses. Actual scientists who do real science, which also involves laboratory experimentation, have shown the Electric Sun theory matches observation and experimentation.
https://www.safir...ons.html

Sep 15, 2019
Not actual scientists but plasma ignoramuses. Actual scientists who do real science, which also involves laboratory experimentation, have shown the Electric Sun theory matches observation and experimentation.
https://www.safir...ons.html


Lol. And where have they written up the 'model' that their unpublished woo experiments are supposed to match? Don't make me laugh. There is not a single electric sun woo model that makes any scientific sense. And no scientist takes it seriously.

Sep 15, 2019
Just a little background for the boys and girls who may be wandering, with every justification, what the hell the 'electric sun' 'model' is:-

Back in the 60s or 70s a non-event electrical engineer, name of Juergens, who was also a Velikoskian fruitloop, scribbled down some really, really dumb ideas about the Sun being some sort of electrical woo. He never published it. Obviously! He left his scribblings under his bed, and promptly snuffed it.
His family sent said scribblings to Kronos, a Velikovskian rag, with which Juergens had been associated. They 'published' it. They'd publish anything. Move along a few decades, and the Electric universe cult is formed. Another non-event EE, Don Scott, picks up Juergen's woo and runs with it. Unhindered, like Juergen's, by any real knowledge of plasma physics, astrophysics or solar physics, he promotes this woo via the EU cult. People like cantthink come along and actually fall for it!
It is unscientific woo of the worst kind. A joke.

Sep 15, 2019
@cantdrive
Seems to me EU proponents have little, if any, science education and no understanding of mathematics. I can see how EU would attract low IQ crackpots.

"The electric universe concept does not meet the National Academy of Sciences' definition of a "theory," which is "a comprehensive explanation of some aspect of nature that is supported by a vast body of evidence" and "can be used to make predictions about natural events or phenomena that have not yet been observed."

In physics, theories need math. That's how you predict, gather evidence, verify, disprove, and support. But EU theory isn't big on math. In fact, "Mathematics is not physics," Thornhill said. While that equation aversion makes the theory pretty much a nonstarter for "mainstream" astronomers, it is the exact thing that appeals to many adherents. "

https://www.vice....hornhill

Sep 15, 2019
@Cantdrive

Please take my IQ test:

What does 1/0 equal?
What does 2 + 2/2 equal?
Is infinity a number?
What is force between two charges (Coulomb's Law) when the distance between those charges equals zero?
Do Maxwell's Equation hold true in all inertial frames of reference?
If "yes" what does this tell us about the speed of light?
If "no" what does this tell us about the speed of light?
Will you refuse to answer like your friend Benni and respond that it is "Pop-Cosmology mathematical psycho-babble"?


Sep 15, 2019
@jimmybobber
I can see how EU would attract low IQ crackpots
Read their comments and techno-jargon: they're not just low IQ crackpots, but also religious ideologists who crave a faith that sounds scientific as they desire acceptance from a community they can't possibly join due to their lack of education

What this does is allow the proselytizing individual to push an ideological belief that sounds more plausible than current religious ideology and that makes the listener and believer feel good (like the dedicated believers of certain Sci-Fi books/stories)

It also makes the believer feel as though they belong to a small, select community of educated forward-thinking heroes of society

also note: most, like cd, are dedicated adherents of conspiracy and other irrational beliefs, be it anti-vaccines, anti-AGW or pro-overunity/perpetual motion

Sep 16, 2019
Why do electrons, in the absence of electric currents, spiral magnetic fields?

@cantdrive
What do you expect is causing the electrons to spiral then?

@Castro
Why are they spiralling? That is what electrons (and ions) do in a magnetic field! Now, if that field is considerable, then the electrons (and ions) will spiral at a greater velocity

Cantdrive, did you actually give a reason why electrons, in the absence of electric currents, spiral these magnetic fields
All alone in the vacuum

And that includes cant, in the absence, of your precious!

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