Fast X-ray Transients are energetic, non-repeating bursts of low-energy X-rays associated with violent cosmic events. Read more about Fast X-Ray Transient, Meaning, Sources, Latest News.
Fast X-Ray Transient Latest News
Recently, astronomers have uncovered new clues about the origin of a rare and powerful cosmic X-ray flash known as a Fast X-ray Transient (FXT).
About Fast X-Ray Transient
FXTs are energetic, non-repeating bursts of low-energy X-rays associated with violent cosmic events.
It was first identified about a decade ago.
They typically last from a few minutes to several hours before fading rapidly, making them difficult to study and leaving their origins largely uncertain.
Many FXTs are associated with high-redshift long period gamma-ray bursts (lGRBs).
Known X-ray transient types with these timescales include stellar flares, X-ray binary outbursts, supernova shock breakouts (SN SBOs) and gamma-ray bursts (GRBs).
What is Gamma-Ray Burst?
It is a powerful astronomical cosmic burst of high-energy gamma-ray.
It emits more energy in a few seconds than our Sun will emit in its lifetime.
It has two distinct emission phases: the short-lived prompt emission (the initial burst phase that emits gamma-rays), followed by a long-lived multi-wavelength afterglow phase.
Sources of Gamma Ray
They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes.
On Earth, gamma waves are generated by nuclear explosions, lightning, and the less dramatic activity of radioactive decay.
Source: PIB
Latest UPSC Exam 2026 Updates
Last updated on June, 2026
→ UPSC Prelims Result 2026 is now out.
→ UPSC IFoS Prelims Result 2026 is now out.
→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2026 for structured answer writing practice, expert evaluation, and exam-oriented feedback.
→ Join Vajiram & Ravi’s UPSC Mentorship Program 2026 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ UPSC Prelims Provisional Answer Key 2026 out for GS Paper 1 and CSAT.
→ UPSC Prelims Question Paper 2026 Out, Download GS Paper 1 PDF conducted on 24th May 2026.
→ UPSC Mains 2026 will be conducted from 21st August 2026 onwards, and UPSC Prelims 2027 will be held on 23rd May 2027.
→ UPSC Final Result 2025 is now out.
→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.
→ Anuj Agnihotri secured AIR 1 in the UPSC Civil Services Examination 2025.
→ UPSC Notification 2026 & UPSC IFoS Notification 2026 is now out on the official website at upsconline.nic.in.
→ UPSC Calendar 2027 has been released.
→ Check out the latest UPSC Syllabus 2026 here.
→ The UPSC Selection Process is of 3 stages-Prelims, Mains and Interview.
→ Shakti Dubey secures AIR 1 in UPSC CSE Exam 2024.
→ Also check Best UPSC Coaching in India
Fast X-ray Transient FAQs
Q1. What are Fast X-ray Transients (FXTs)?+
Q2. Which Indian space observatory detected a rare FXT named ‘XT-190630’?+
Tags: fast x-ray transient
Previous Article
Bharat Climate Observation NetworkNext Article
Turquoise Nexus Initiative
Vajiram Prelims Team
At Vajiram & Ravi, our team includes subject experts who have appeared for the UPSC Mains and the Interview stage. With their deep understanding of the exam, they create content that is clear, to the point, reliable, and helpful for aspirants.Their aim is to make even difficult topics easy to understand and directly useful for your UPSC preparation—whether it’s for Current Affairs, General Studies, or Optional subjects. Every note, article, or test is designed to save your time and boost your performance.
Related Posts
Courses
UPSC Sureshot Mains Test Series
₹19000