DAILY NEWS ANALYSIS

GS-III : S&T Space

13 December, 2022
5 Min Read

Binary Merger Of Gamma-Ray Burst with Kilonova

Tags:
GS-III
S&T
Space
S&T

Binary Merger Of Gamma-Ray Burst with Kilonova

A long Gamma Ray Burst (GRB) produced by a compact binary merger twinned with kilonova emissions was recently reported as a rare astronomical event.
The Devasthal Optical Telescope (DOT), India's largest optical telescope, also confirmed this combination, which had never before been accepted or proven scientifically.
The GRB, designated as GRB211211A, lasted for more than 50 seconds.
Kilonovae are produced by the collision of two compact objects, such as binary neutron stars or neutron stars and black holes.

How do Gamma-Ray Bursts (GRB) work?

GRBs are short, high-energy gamma radiations that are released when massive stars in the universe collapse or die. They are massive but incredibly bright.
They are the most potent cosmic events, and they can be seen from billions of light-years away.
A light-year, or 9.5 trillion kilometres, is the distance a light beam covers in one year on Earth.
Based on whether the event lasts longer than or less than two seconds, astronomers categorise them as long or short.

Long Gamma-Ray Bursts (GRBs):

These bursts are seen in connection with the death of large stars.
A black hole is created when the core of a star many times more massive than the Sun abruptly collapses due to fuel exhaustion.
A black hole is a region in space where the matter has been compressed to such an extent that it has produced a gravitational field from which even light cannot escape.
Some of the matter that is swirling toward the black hole escapes as two strong jets that travel in opposite directions at nearly the speed of light.
Only when one of these jets happens to be almost directly pointed at Earth can astronomers detect a GRB.
Each jet pierces the star, sending out a pulse of gamma rays, the light with the highest energy, that can last for several minutes. The star that was damaged by the burst then rapidly expands as a supernova.
An exploding star that has reached the end of its life is known as a supernova.

Short Gamma-Ray Bursts (GRB):

Contrarily, a short GRB is created when two compact objects, like neutron stars, which are also created during stellar collapse, spiral inward over a period of billions of years and collide.
One of the potential evolutionary endpoints for high mass stars is a neutron star.

Source: The Indian Express

Join Our Telegram

Voice clone-AI

Pradhan Mantri Suryodaya Yojana

06 Feb, 24
SHARE

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

Foreign Contribution Regulation Act (FCRA)- NGO

06 Feb, 24
SHARE

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

Voice clone-AI

06 Feb, 24
SHARE

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

Science communication- how to promote

06 Feb, 24
SHARE

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

Universal Basic Income (UBI)- Analysis

05 Feb, 24
SHARE

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

Quick Links Testimonials FAQ

Crash Course

Regular Modules 2024

Mains

Optional

Binary Merger Of Gamma-Ray Burst with Kilonova

Binary Merger Of Gamma-Ray Burst with Kilonova

How do Gamma-Ray Bursts (GRB) work?

Long Gamma-Ray Bursts (GRBs):

Short Gamma-Ray Bursts (GRB):

Pradhan Mantri Suryodaya Yojana

Foreign Contribution Regulation Act (FCRA)- NGO

Voice clone-AI

Science communication- how to promote

Universal Basic Income (UBI)- Analysis

DNA

06 Feb,2024

GS-III

PT Pickups

Toppers

Search By Date

Top Editorials

UPSC Courses

Saarthi Mentorship Programme

Important Tags

Articles:Geography And Environment

Articles: History Culture Society

Articles: Governance & National Issues

Articles: IR & IO

Articles: Economic Development & Economic Issues

Articles: S&T Internal Security

Articles: Ethics & Others

Articles: Others

Newsletter Subscription

SMS Alerts

Important Links