MW mass inflow, outflow

[notFritzArgelander]

https://phys.org/news/2019-10-mass-infl ... milky.html

[helicon]

These results show that galaxies like the Milky Way do not evolve in a steady state," Dr. Fox summarized. "Instead they accrete and lose gas episodically. It's a boom and bust cycle: When gas comes in, more stars can be formed, but if too much gas comes in, it can trigger a starburst so intense that it blows away all the remaining gas, shutting off the star formation. Thus, the balance between inflow and outflow regulates how much star formation occurs. Our new results help to illuminate this process.

Also, the article postulates that similar outflows of gas are possible even on planets such as Earth. Thanks for posting this notFritz - a fairly lengthy article.

[notFritzArgelander]

AAS has an article on this that is a fun read.

https://aasnova.org/2019/10/08/is-the-m ... 2Hfmu0Vz48

[Michael131313]

Thanks n_FA. Pretty interesting. Liked the part about the solar system gaining and loosing.

[notFritzArgelander]

https://phys.org/news/2019-10-milky-rai ... ounts.html

A more sensational take...