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Unexpected: Active Black Hole not Suppressing Galaxy Star Formation | High Sierra Backpacker

Unexpected: Active Black Hole not Suppressing Galaxy Star Formation


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 20 February 2018

Updated:
Black Holes Are Suppressing Dwarf Galaxy Star Formation

 

DEEP SPACE
Unexpected Observations

Active Black Hole not Suppressing Host Galaxy Star Formation

No relation between a supermassive black hole and its host galaxy!?
National Institutes of Natural Sciences, February 20, 2018.

Observation Target
These astronomers observed, "...(WISE1029)...is outflowing gas ionized by the strong radiation from its supermassive black hole. WISE1029 is known as an extreme case in terms of ionized gas outflow, and this particular factor has motivated the researchers to see what happens to its molecular gas."

Unexpected Results
"...showing that the ionized gas outflow driven by the supermassive black hole does not necessarily affect its host galaxy..."

"...star forming activity is neither activated nor suppressed. This indicates that a strong ionized gas outflow launched from the supermassive black hole in WISE1029 neither significantly affect the surrounding molecular gas nor the star formation."

That was completely unexpected. Current conventional wisdom expected these ionized gas flows to suppress star formation.

The Bottom Line
"we astronomers do not understand the real relation between the activity of supermassive black holes and star formation in galaxies."

Despite our physical ability to operate perfectly within our surrounding, "reality," we are much more intellectually ignorant about the nature of our surrounding reality that informed. We are as ignorant about the true nature of the universe, galaxies, and stars around us as we have been misguided about the "junk" DNA within us.

Our ignorance is as externally expansive as it's internally deep.

It's funny that we humans throughout our history have always sincerly believed that we know and could explain everything, when we know virutally nothing.

UPDATE

 

Star-Forming Galaxy
NGC1569 is a star-forming galaxy, credit HST/NASA/ESA.
NGC1569 is a star-forming galaxy, credit HST/NASA/ESA.

 

Do They or Don't They?

Don't Stunt Galaxy Star Formation, But Stifle Dwarf Galaxy Star Formation

Black Holes Stunt Growth of Dwarf Galaxies,
University of California - Riverside, October 11, 2019.

MAIN POINTS

Galaxies
"Dwarf galaxies are small galaxies that contain between 100 million to a few billion stars. In contrast, the Milky Way has 200-400 billion stars. Dwarf galaxies are the most abundant galaxy type in the universe and often orbit larger galaxies."

The Issue
"...astronomers have suspected for the past couple of decades that supermassive black holes at the centers of large galaxies can have a profound influence on the way large galaxies grow and age."

Dwarf Galaxy Black Holes
"...have discovered that powerful winds driven by supermassive black holes in the centers of dwarf galaxies have a significant impact on the evolution of these galaxies by suppressing star formation."

 

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Black Holes are Not Suppressing Galactic Star Formation

 

 

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