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Astronomers report the most distant radio galaxy ever discovered 5nvklj





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Astronomers report the most distant radio galaxy ever discovered

Dragon
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Astronomers report the most distant radio galaxy ever discovered Empty Astronomers report the most distant radio galaxy ever discovered

Post by Dragon Sat Aug 11, 2018 12:02 am

After nearly 20 years, the record of the most distant radio galaxy ever discovered has been broken. A team led by Ph.D. student Aayush Saxena (Leiden Observatory, the Netherlands) has found a radio galaxy from a time when the universe was only 7 percent of its current age, at a distance of 12 billion light-years.

The team used the Giant Meter-wave Radio Telescope (GMRT) in India to initially identify the radio galaxy. The distance to this galaxy was then determined using the Gemini North telescope in Hawaii and the Large Binocular Telescope in Arizona by measuring the redshift of the galaxy.

The redshift of z = 5.72 means that the galaxy is perceived as it looked when the universe was only a billion years old. This also means that the light from this galaxy is almost 12 billion years old.

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Astronomers report the most distant radio galaxy ever discovered 334pu7m
Dragon
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Astronomers report the most distant radio galaxy ever discovered Empty Re: Astronomers report the most distant radio galaxy ever discovered

Post by Dragon Sat Aug 11, 2018 12:03 am

Astronomers report the most distant radio galaxy ever discovered 3-astronomersr
Credit: Leiden Observatory

This picture shows the near-infrared image in K band taken using the Large Binocular Telescope in Arizona, with radio emission overlaid in white. The fact that the host galaxy was not detected at infrared wavelengths from where the radio emission originates helped independently confirm the record distance of this galaxy.

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Astronomers report the most distant radio galaxy ever discovered 334pu7m
Dragon
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Astronomers report the most distant radio galaxy ever discovered Empty Re: Astronomers report the most distant radio galaxy ever discovered

Post by Dragon Sat Aug 11, 2018 12:05 am



This picture shows the near-infrared image in K band taken using the Large Binocular Telescope in Arizona, with radio emission overlaid in white.


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