When Did the First Stars in the Universe Form?

[wolram]

http://arxiv.org/pdf/1609.00716.pdf

Date:
September 2, 2016
Source:
European Space Agency (ESA)
Summary:
ESA's Planck satellite has revealed that the first stars in the Universe started forming later than previous observations of the Cosmic Microwave Background indicated. This new analysis also shows that these stars were the only sources needed to account for reionising atoms in the cosmos, having completed half of this process when the Universe had reached an age of 700 million years.

 

[DrSteve]

The link you provide is a lecture on inflation

 

[wolram]

The link you provide is a lecture on inflation

OOPs sorry here is the correct link.

https://www.sciencedaily.com/releases/2016/09/160902125859.htm

 

[|Glitch|]

http://arxiv.org/pdf/1609.00716.pdf

Date:
September 2, 2016
Source:
European Space Agency (ESA)
Summary:
ESA's Planck satellite has revealed that the first stars in the Universe started forming later than previous observations of the Cosmic Microwave Background indicated. This new analysis also shows that these stars were the only sources needed to account for reionising atoms in the cosmos, having completed half of this process when the Universe had reached an age of 700 million years.

That conflicts with their earlier finding:

Hubble breaks cosmic distance record

...

Before astronomers determined the distance to GN-z11, the most distant measured galaxy, EGSY8p7, had a redshift of 8.68. Now, the team has confirmed GN-z11’s distance to be at a redshift of 11.1, which corresponds to 400 million years after the Big Bang.

“The previous record-holder was seen in the middle of the epoch when starlight from primordial galaxies was beginning to heat and lift a fog of cold, hydrogen gas,” explains co-author Rychard Bouwens from the University of Leiden, the Netherlands. “This transitional period is known as the reionisation era. GN-z11 is observed 150 million years earlier, near the very beginning of this transition in the evolution of the Universe.”

Source:
NASA/ESA Hubble Space Telescope News

Since stars are a fundamental component of galaxies, that would mean stars would have had to form earlier than 400 million years after the Big Bang. It would also mean that the reionization era ended approximately 550 million years after the Big Bang.