<
https://theconversation.com/we-mapped-a-massive-explosion-in-space-showing-how-galaxies-pollute-the-cosmos-228287>
"We breathe oxygen and nitrogen gas in our atmosphere every day, but did you
know that these gases also float through space, around and between galaxies?
Our team captured a high-resolution view of how these elements make it so far
out into the universe. Our study is now published in
Monthly Notices of the
Royal Astronomical Society.
Gas outflows from galaxies happen when supernovae – the explosive deaths of
stars – eject a mixture of gas and heavy elements such as oxygen, sulphur and
even nickel. In addition to “polluting” space with heavy elements, these
outflows also play a key role in star formation within galaxies as a whole.
Observing outflows from galaxies is hard, because the gas is many times fainter
than the light from the galaxy itself. As a result, we have observed outflows
in only a handful of galaxies in the nearby universe.
This lack of data has significantly limited our understanding of their physical
nature. It means that every time we do find a new outflow, we gain a wealth of
new information."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
