Study of distant dying star may tell how Sun will eventually die
Washington: Scientists have found a jet of high-energy particles erupting from a dying star, which could help explain what happens when stars like the Sun reach the end of their lives.
Chalmers scientists and colleagues from Germany and Australia used the CSIRO Australia Telescope Compact Array, an array of six 22-meter radio telescopes in New South Wales, Australia, to study a star at the end of its life.
The star, known as IRAS 15445-5449, is in the process of becoming a planetary nebula, and lies 23,000 light-years away in the southern constellation Triangulum Australe (the Southern Triangle).
Lead author Andres Perez Sanchez, graduate student in astronomy at Bonn University, said that in their data they found the clear signature of a narrow and extremely energetic jet of a type which has never been seen before in an old, Sun-like star.
The strength of the radio waves of different frequencies from the star match the expected signature for a jet of high-energy particles which are, thanks to strong magnetic fields, accelerated up to speeds close to the speed of light.
Similar jets have been seen in many other types of astronomical object, from newborn stars to supermassive black holes.
Wouter Vlemmings, astronomer at Onsala Space Observatory, Chalmers, said that the star`s brightness indicates that it`s in the process of creating a symmetric nebula around the star.
More from India
More from World
More from Sports
More from Entertaiment
- Indian Army conducts surgical strikes across LoC: Watch DGMO Lt Gen Ranbir Singh's PC
- Indian Army targets terror camps across LoC; Pak PM Sharif condemns
- 7 terror camps destroyed by Indian Army in surgical strikes
- DNA: Indian Army carries out surgical strikes across LoC
- Indian Army surgical strike: Pak rejects claim, says 2 soldiers killed
- What is surgical strike and how it is conducted - MUST KNOW for every Indian
- SALUTE! Brave Indian army commandos give befitting reply to Pak-sponsored terrorists
- Surgical strikes across LoC in Pakistan were filmed, videos kept as proof
- LIVE: Pakistan's nuclear weapons may fall into hands of jihadists, fears Hillary Clinton
- US NSA Susan Rice calls Ajit Doval, says 'expect Pakistan to take action against terror’