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06 April, 2021
5 Min Read
Indian astronomers from Aryabhatta Research Institute of Observational Sciences have tracked a rare supernova explosion and traced it to one of the hottest kind of stars called Wolf–Rayet stars or WR stars.
The rare Wolf–Rayet stars are highly luminous objects a thousand times that of the Sun. They strip their outer hydrogen envelope which is associated with the fusion of Helium and other elements in the massive core.
Supernova
Supernovae can be triggered in one of two ways:
Type I supernova or Type Ia supernova
The difference between Nova and Type I supernova
|
Nova |
Type I supernova |
|
In a nova, the system can shine up to a million times brighter than normal. |
A supernova is a violent stellar explosion that can shine as brightly as an entire galaxy of billions of normal stars. |
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As long as it continues to take gas from its companion star, the white dwarf can produce nova outbursts at regular intervals. |
If enough gas piles up on the surface of the white dwarf, a runaway thermonuclear explosion blasts the star to bits. |
Type II supernova
Importance of supernova: Creating and dispersing new elements
In the supernova explosion, all of these elements are expelled out into space, and new stars are born out of this matter.
Source: PIB
06 Feb, 24
Recently, Prime Minister announced Pradhan Mantri Suryodaya Yojana under which 1 crore households will get rooftop solar power systems. India’s Status of Current Solar Capacity India currently stands at 4th place globally in solar power capacity. As per Ministry of New an
06 Feb, 24
The Foreign Contribution Regulation Act, 2010 (FCRA) registration of two prominent non-governmental organisations (NGOs) — Centre for Policy Research (CPR) and World Vision India (WVI) have been cancelled this month. What is FCRA? Key provisions of FCRA, 2010 Key aspects Description
06 Feb, 24
Voice clone fraud has been on the rise in India. AI voice cloning – It is the process of creating a synthetic replica of a person’s voice through machine learning and speech synthesis technology.It is called as voice deepfakesor audio deepfakes. Objective – To achieve a high level of na
06 Feb, 24
Steps taken by India to promote Science Communication Publications and Information Directorate (PID) - An organisation under Council of Science and Industrial Research (CSIR) established in 1951 for publishing and disseminating scientific information in India. National science magazines- The PI
05 Feb, 24
Universal Basic Income (UBI) can strengthen welfare architecture and unlock the nation’s latent demographic potential. UBI - It is an income support mechanism typically intended to reach all or a very large portion of the population regardless of their earnings or employment status. Objective- To provide enough to co
06 Feb,2024
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