Stars, space

In an astonishing discovery, a new study, which was carried by an international team of astronomers to observe a distant galaxy which is known as MACS1149-JD1. The team has discovered that this star is giving faint signals which are comprised of ionized oxygen which emits 13.3 billion years ago.

The co-author of the study, Nicolas Laporte, who is the researcher at the University College London (UCL) said that the research has shown MACS1149-JD1 is the most distant source of the oxygen.  MACS1149-JD1 was discovered during the year 2012 with the help of the Atacama Large Millimeter/submillimeter Array (ALMA). ALMA is located at the high and dry Atacama desert present in Northern Chile. It is a radio telescope which is made up of 66 antennas of high-precision which operate in the perfect harmony. When ALMA’s antennas are configured, then is capable of zooming some distant cosmic objects present in the universe and can capture a clear image like Hubble Space Telescope.

NASA, stars

The scientists have studied the infrared data which was recorded by the NASA’s Hubble Space Telescope and NASA Spitzer Space Telescope. They have noticed the brightness of the galaxy and suggested that the star was formed in the galaxy which is about 250 million years after the Big Bang. The redshift measurement which was taken with the help of ALMA and the team has confirmed the distance of the galaxy with these observations from ALMA and ESO-VLT.

The lead author the study Takuya Hashimoto, who is the researcher at Osaka Sangyo University and the National Astronomical Observatory of Japan said, “I was thrilled to see the signal of the distant oxygen in the ALMA data. This detection pushes back the frontiers of the observable universe.”

According to the Laporte, he said for the research,” If you want to go back, back in time, [you could] push back the observation of galaxies and stars up to very high redshift, 20, 50.”  This study will help the scientists in studying the biggest mysteries in the modern astronomy.

Richard-Ellis, who is the co-author and presently at University College London said,” Determining when cosmic dawn occurred is akin to the Holy Grail of cosmology and galaxy formation. With these new observations of MACS1149-JD1, we are getting closer to directly witnessing the birth of starlight! Since we are all made of a processed stellar material, this is finding our origins.”


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