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Astronomers Discovered Earliest Galaxy Merger 13-Billion LY Ago

Artist’s impression of the merging galaxies B14-65666 located 13 billion light years-away (Credit: National Astronomical Observatory of Japan)

Specialists utilizing the radio telescope ALMA (Atacama Large Millimeter/submillimeter Array) watched the sign of oxygen, carbon, and residue from a cosmic galaxy in the early Universe 13 billion years prior. This is the steadiest galaxy where this valuable blend of three sign has been identified. By looking at the changed sign, the group confirmed that the world is dual galaxies merger, making it the steadiest case of combining cosmic galaxies yet found.

Takuya Hashimoto, a postdoctoral scientist at the Japan Society for the Promotion of Science and Waseda University, Japan, and his group utilized ALMA to watch B14-65666, an object found 13 billion light-years away in the constellation Sextans. On account of the limited speed of light, the sign we get from B14-65666 today needed to go for 13 billion years to contact us. They demonstrate to us the picture of what the universe resembled 13 billion years prior, under 1 billion years after the Big Bang.

Reference:

Hashimoto et al. “Big Three Dragons”: a z = 7.15 Lyman Break Galaxy Detected in [OIII] 88 um, [CII] 158 um, and Dust Continuum with ALMA” in the Publications of the Astronomical Society of Japan.

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