Israeli scientists discover the universe's first stars - study
Astrophysicists managed for the first time to statistically characterize the first galaxies in the universe.
By JUDY SIEGEL-ITZKOVICH
Published: DECEMBER 4, 2022
Only 200 million years after the Big Bang created the universe, the earliest galaxies were relatively small and dim – fainter than present-day galaxies – and probably processed only 5% or less of their gas into stars. These first galaxies also did not release radio waves at an intensity much higher than that of modern galaxies.
This breakthrough discovery was made by an international team headed by Dr. Anastasia Fialkov of the University of Cambridge, England, and included Prof. Rennan Barkana from the Sackler School of Physics and Astronomy at Tel Aviv University (TAU). Fialkov was a former student of Barkana at TAU.
The team of astrophysicists managed for the first time to statistically characterize the first galaxies in the universe. The results of this innovative study have just been published in the prestigious journal Nature Astronomy under the title “Astrophysical constraints from the SARAS 3 non-detection of the cosmic dawn sky-averaged 21-cm signal.”
more............. https://www.jpost.com/science/article-724049
Astrophysicists managed for the first time to statistically characterize the first galaxies in the universe.
By JUDY SIEGEL-ITZKOVICH
Published: DECEMBER 4, 2022
Only 200 million years after the Big Bang created the universe, the earliest galaxies were relatively small and dim – fainter than present-day galaxies – and probably processed only 5% or less of their gas into stars. These first galaxies also did not release radio waves at an intensity much higher than that of modern galaxies.
This breakthrough discovery was made by an international team headed by Dr. Anastasia Fialkov of the University of Cambridge, England, and included Prof. Rennan Barkana from the Sackler School of Physics and Astronomy at Tel Aviv University (TAU). Fialkov was a former student of Barkana at TAU.
The team of astrophysicists managed for the first time to statistically characterize the first galaxies in the universe. The results of this innovative study have just been published in the prestigious journal Nature Astronomy under the title “Astrophysical constraints from the SARAS 3 non-detection of the cosmic dawn sky-averaged 21-cm signal.”
more............. https://www.jpost.com/science/article-724049