Yale: Black Holes & Their Host Galaxies Grow Old Together

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Yale: Black Holes & Their Host Galaxies Grow Old Together

Post by bystander » Tue Oct 01, 2019 5:11 pm

Growing Old Together: A Sharper Look
at Black Holes and Their Host Galaxies

Yale University | 2019 Sep 30
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Some relationships are written in the stars. That’s definitely the case for supermassive black holes and their host galaxies, according to a new study from Yale University.

The “special relationship” between supermassive black holes (SMBHs) and their hosts — something astronomers and physicists have observed for quite a while — can now be understood as a bond that begins early in a galaxy’s formation and has a say in how both the galaxy and the SMBH at its center grow over time, the researchers note. ...

“There has been a lot of uncertainty regarding the SMBH-galaxy connection, in particular whether SMBH growth was more tightly connected to the star formation rate or the mass of the host galaxy,” said Yale astrophysicist Priyamvada Natarajan ... “These results represent the most thorough theoretical evidence for the former — the growth rate of black holes appears to be tightly coupled to the rate at which stars form in the host.” ...

Tracing Black Hole and Galaxy Co-Evolution in the Romulus Simulations ~ Angelo Ricarte et al
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We Will All Grow Together When We Go

Post by neufer » Tue Oct 01, 2019 5:41 pm

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Art Neuendorffer