Scientists from National Centre for Radio Astrophysics Capture Deepest Radio Images of Sun (Download PDF)

()

Download PDF of This Page (Size: 456.56 K)

A team of scientists at National Centre for Radio Astrophysics has lead an international group of researchers to get information of some mysteries. The magnetic fields in the sun’s atmosphere are the energy source for massive explosions & they are not easy to measure.

Image About Scientists from National Centre

Image About Scientists from National Centre

Image About Scientists from National Centre for Radio Astrophysics

  • (NCRA) National Centre for Radio Astrophysics are in Pune& Maharashtra.

  • The sun is astonishingly challenging radio source to study. Its emission can change in a second in different ways even through nearby frequencies.

  • Divya Oberoi, from NCRA, led the study published in the Astrophysical Journal.

  • The radiation due to magnetic fields is very weak making the work very challenging.

Significance of Discovery

  • This work has led to exciting discovery of oscillations in size of radio-emitting region, brightness& to conventional wisdom in local too.

  • The sun is the brightest object in the sky &its study is engaged since 100 of years though it’s a mystery today.

  • Explosions in the sun may effect communication satellites, power supply& GPS navigation.

Details of Discovery

  • Radio telescope acquired was in Australia- (MWA) Murchison Wide field Array.

  • The technique allows images from the surface of the sun to generate higher contrast images of it at hundreds of closely spaced frequencies, every half a second, totalling about million images per hour.

  • The other members who contributed in this work are as follows:

    • Colin Lonsdale & Leonid Benkevitch, both from Massachusetts Institute of Technology, USA.

    • John Morgan from Curtin University, Australia.

    • Ivar Cairns from university of Sydney, Australia.

    • Meagan Crowley from University of Massachusetts, USA.

National Centre for Radio Astrophysics

  • Tata Institute of Fundamental Research (TIFR) has an active research program for India is largest Radio Telescope operating at low radio frequencies.

  • Engineering fields: Analog & Digital Electronics, Signal Processing, Antenna Design, Communication & Software Development.

  • NCRA currently operates Giant Metre wave Radio Telescope (GMRT), located approx. 80 km north of Pune.

  • NCRA includes studies of the Sun, interplanetary scintillations, pulsars, the Interstellar medium, active galaxies & cosmology with exciting opportunities and challenges.

- Published/Last Modified on: May 5, 2019

Science/Technology, Space/ISRO

Monthy-updated, fully-solved, large current affairs-2019 question bank(more than 2000 problems): Quickly cover most-important current-affairs questions with pointwise explanations especially designed for IAS, NTA-NET, Bank-PO and other competetive exams.