Extreme Emission Lines of Early Galaxies
Using very deep data from NASA's Spitzer Space Telescope our team has found that some of the universe's earliest galaxies were emitting more extreme radiation than expected. The finding offers new clues to the cause of the Epoch of Reionization, a major cosmic event that transformed the universe from being mostly neutral to ionized today.
In our paper that was just published (deBarros et al. 2019), we analyze the light of a large number of galaxies only ~600 Myr after the Big Bang, and measure their emission properties.
Our local press release in French can be found here.
The international press release, together with images can be found here.
May 8, 2019