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New Delhi: Millions of Koreans trace their origins to Suriratna, a princess from Ayodhya who had married the Korean king Kim Suro, said a diplomat from the country, adding that a memorial to the princess would soon be upgraded.

At a two-day international conference organized by the Indian Council for Cultural Relations (ICCR), the deputy head of the South Korean embassy Ahn Min Sik said the shared heritage between India and his country began in 48 AD with the Ayodhya princess marrying the Korean king.

“If there’s any country that is closer to India in terms of the shared history, the language, it is Korea,” said the ICCR President Lokesh Chandra, adding that the legend has helped in strengthening the Indo-Korean relations.

“Our history shows the mutual support and partnership these two countries had enjoyed. This has led to an increasing value to our extending partnership in economic, political and cultural entities,” Anil Wadhwa, secretary in the ministry of external affairs said while addressing the conference.

An official statement from the ICCR pointed out that Suriratna had traveled for three months from Ayodhya to Korea by sea and married the Korean king, thus marking the beginning of the Garak clan in Korea.

Prime Minister Narendra Modi during his visit to Seoul in May had also reiterated the importance of this legend in his speech.

“The relationship between the two countries goes back to the first century when an Indian Princess traveled from the kingdom of Ayodhya to Korea by a boat. She married the Korean King Suro and became the first queen of South Korean kingdom. Several Koreans trace their lineage to her,” Modi had said at the India-Korea CEOs Forum.

This tale of the Ayodhya princess was also mentioned in ‘Samguk Yusa’ or ‘The Heritage History of the Three Kingdoms’, a treasured work in Korea which was written in the 13th century.

The book finds a reference to the princess (Suriratna), who after marriage had become Queen Heo Hwang-ok.

The statement from ICCR also mentioned some of the famous descendants of Queen Heo as General Kim Yoo-shin, who had first unified the Korean Kingdom in the 7th century, former president and Nobel Laureate Kim Dae-jung, and former prime minster Kim Jong-pil, among others.

(IANS)


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Indian astronomers have found an active galaxy in a very bright state with 10 times more X-ray emission than normal

Indian astronomers have found an active galaxy in a very bright state with 10 times more X-ray emission than normal, equivalent to more than 10 trillion of the sun, and located five billion light years away that could help probe how particles behave under intense gravity and acceleration to the speed of light.

It could help study the role of strong gravity and acceleration of matter in the formation, interaction and evolution of galaxies in the early universe.

Every galaxy in the universe is believed to host a supermassive black hole at its centre. In some galaxies, the black hole is actively devouring a large amount of material and shooting a jet of plasma almost at the speed of light towards us. These are called blazars.

OJ 287 belongs to a class of blazars known as BL Lacertae objects which show very rapid and large amplitude flux variations but barely discernible emission line features.

This class of sources emit in the whole electromagnetic spectrum, a rather uncommon phenomenon which requires extreme physical conditions. Hence, a study of such sources tells us about the behaviour of matter in an extreme gravitational field where it is difficult for light to escape from the vicinity of the black hole.

Astronomers at Aryabhatta Research Institute of Observational Sciences, an autonomous institute of the Department of Science and Technology, Government of India, have been monitoring one such black hole system named 'OJ 287' since 2015. This source shows a repeated optical brightness enhancement almost every 12 years.

"The repeated optical enhancement makes OJ 287 very intriguing as this class of sources does not show any repeating features in flux variations. The repeated optical enhancement made the researchers believe that the system hosts a binary black hole," said a release from the Ministry of Science and Technology.

In 2020, the source was very bright at optical and X-ray bands with X-ray flux more than 10 times the normal (non-active phase) flux. This flare was very different as it was not expected in models proposed for this source and thus, indicated a more complex system and physical conditions.

Investigating the extreme brightness shown by OJ 287 at optical and X-ray bands, astronomers led by Pankaj Kushwaha and Alok C. Gupta reported the source in a completely new spectral state.

The team argued that this change of state holds clues to the researcher's quest to understand how matter behaves in very strong gravity and how it accelerates the particle to almost the speed of light -- a feat that is out of the scope of even the most advanced CERN accelerator.

The research published in 'The Astrophysical Journal' tracked the details of changes in optical to the X-ray emission spectrum of the source with time from 2017 to 2020 -- after the second brightest X-ray flare of the source. It revealed how the source gradually started to change its spectral behaviour from mid-2018 to the new spectral state in 2020.

The study included data recorded by the ground-based facility operated by Physical Research Laboratory, Ahmedabad, operated Mount Abu observing facility in near infra-red bands and the space-based NASA's satellites -- the Niels Gherel Swift satellite at optical, UV and X-rays with gamma ray data from the Fermi satellite, the release added. (IANS/JB)

Keywords: Science, NASA, Satellites, Black Hole, Gravity, India


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