"Korea’s Lunar Orbiter Danuri Data Historic Gamma-Ray Burst as New Maps of Lunar Floor and House Radiation Surroundings Are Deliberate"

The Korea Institute of Geoscience and Mineral Assets plans to provide a fundamental map of the lunar floor and a map of the house radiation surroundings.

Gamma-ray spectrum measured throughout a gamma-ray burst

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(Daejeon = Yonhap Information) Reporter Park Joo-young = The outcomes of observations of gamma-ray bursts captured by Korea’s first lunar orbiter “Danuri” (KPLO) have been printed in a world educational journal.

The Korea Institute of Geoscience and Mineral Assets stated {that a} analysis paper on the gamma-ray burst noticed two years in the past by Dr. Kyungja Kim’s analysis staff on the House Assets Improvement Heart via the gamma-ray spectrometer mounted on Danuri was printed within the ‘Scientific Report’ on the seventeenth. It was introduced on the twentieth.

A gamma-ray burst (GRB) is an explosive phenomenon that emits essentially the most highly effective electromagnetic waves within the universe and is thought to happen in the course of the explosion of a large supernova or the merger of a neutron star (binary star).

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This text analyzes the measurement outcomes of essentially the most highly effective gamma-ray burst of this century (GRB 221009A), which occurred on October 9, 2022.

On the time, it was believed that the gamma-ray burst occurred when a star with a mass greater than 30 occasions that of the Solar died within the constellation Sagittarius, 2.4 billion light-years from Earth.

The measurement outcomes confirmed that the photon vitality reached a most of 18 TeV (teraelectronvolt = 10 to the facility of 12 electronvolts) and that gamma rays elevated as much as 49 occasions.

Gamma-ray spectrometer mounted on Danuri

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The analysis staff collected information utilizing a gamma-ray spectrometer beginning on August 9, 2022, the fourth day after the launch of Danuri, and detected a gamma-ray burst at a location 1.51 million km from Earth twice at 1:21 and 25 hours on October 9. Reality

The gamma-ray spectrometer is a payload that collects gamma-ray spectral information from the lunar floor and makes use of it to discover the lunar floor geological assets and create maps of greater than 5 forms of lunar components. Gamma-ray commentary information is collected each 10 seconds in the course of the Earth-Moon navigation interval.

Via gamma-ray observations, the Geological Analysis Institute plans to create a map of lunar floor components for lunar geological assets analysis, and in addition produce a map of house radiation surroundings.

Moreover, we’re pursuing the event of further payloads to analyze assets on the lunar floor, comparable to a neutron spectrometer and a laser-induced fragmentation spectrometer to analyze polar assets comparable to permafrost.

Kim Gyeong-ja, director of the House Assets Improvement Heart, stated, “That is the primary case through which a gamma-ray spectrometer has contributed observations within the historical past of astronomy,” and added, “We’ll focus extra on analysis to safe technological capabilities and assets for house exploration and house assets improvement sooner or later.”

Place of the gamma-ray spectrometer on the time of measurement of the gamma-ray burst

[한국지질자원연구원 제공. 재판매 및 DB 금지]

jyoung@yna.co.kr

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2024-08-20 09:48 Despatched