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70-year-old solar mystery solved

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Magnificent CME Erupts on the Sun - August 31Tokyo: Solar physicists have captured the first direct observational signatures of a solar phenomenon that has eluded the world of science for over 70 years. This new information can explain how the solar corona reaches temperatures of 1,000,000 degrees Celsius — the so called “coronal heating problem”.

Resonant absorption is a process where two different types of magnetically driven waves resonate, strengthening one of them. Researchers looked at a type of magnetic waves which can propagate through a prominence – a filamentary structure of cool, dense gas floating in the corona.

The team found that magnetically driven resonance helps heat the Sun’s atmosphere. The solar corona, the outer layer of the Sun’s atmosphere, is composed of extremely high temperature gas, known as plasma, with temperatures reaching millions of degrees Celsius. As the outer layer of the Sun, the part farthest from the core where the nuclear reactions powering the sun occur, it would logically be expected to be the coolest part of the Sun, but it is 200 times hotter than the photosphere in the layer beneath.

This contradiction, dubbed as “the coronal heating problem,” has puzzled astrophysicists ever since the temperature of the corona was first measured over 70 years ago. For this, a research team from Japan, the US and Europe led by Drs Joten Okamoto and Patrick Antolin combined high-resolution observations from JAXA’s Hinode mission and NASA’s IRIS (Interface Region Imaging Spectrograph) mission. They were able to detect and identify the observational signatures of resonant absorption.

“The work shows how the power of multiple satellites can be combined to investigate long-standing astrophysical problems and will serve as an example for other research looking for similar heating in other solar observations,” the team said.

(IANS)

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OPPO to Establish New Research and Development Centre in China to Boost its R&D Capabilities

The smartphone player will spend 10 billion Renminbi (around $1.46 billion) on R&D this year

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The new facilities, along with the company's existing R&D centres, will form a robust research engine that powers its innovation for the emerging era of intelligent connectivity. Pixabay

Chinese handset maker OPPO on Friday announced it will establish a new research and development centre in China’s Chang’an Town, Dongguan, Guangdong Province as it aims to boost its R&D capabilities.

The new facilities, along with the company’s existing R&D centres, will form a robust research engine that powers its innovation for the emerging era of intelligent connectivity.

The smartphone player will spend 10 billion Renminbi (around $1.46 billion) on R&D this year.

“We are very pleased to officially break ground on OPPO’s new Chang’an R&D centre. It will play a strategic role in OPPO’s R&D endeavours, further enhancing the core technological capabilities of the company and accelerating the implementation of our R&D strategy and objectives,” Eric Zhu, Vice President, OPPO, said in a statement.

OPPO, Research, Development
Chinese handset maker OPPO on Friday announced it will establish a new research and development centre in China’s Chang’an Town. Pixabay

“The project will be built to the highest industrial standards and we will spare no effort in making the new R&D centre a masterpiece initiative in the Guangzhou-Shenzhen Science and Technology Innovation Corridor, helping to bolster the development of the Guangdong-Hong Kong-Macao Greater Bay Area.”

According to the handset maker, OPPO’s Chang’an R&D centre is one of Dongguan’s major initiatives to drive the development of the Guangdong-Hong Kong-Macao Greater Bay Area, and is expected to house 5,000 R&D personnel upon completion.

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As a global R&D engine for the company, the R&D centre will be responsible for the R&D, design and testing of a range of smart devices, including smartphones and IoT products.(IANS)