INDIAN ASTRONOMERS DISCOVER ONE OF THE FARTHEST STAR GALAXIES IN THE UNIVERSE : AUDFs01

Learn about: Astrosat- objectives, accomplishment, significance and way forward. For upsc prelims and mains.

CONTEXT: As a landmark achievement in Space missions, Indian Astronomers have discovered one of the farthest Star galaxies in the universe.

It is a matter of pride that India’s first Multi-Wavelength Space Observatory “AstroSat” has detected extreme-UV light from a galaxy located 9.3 billion lightyears away from Earth.

The galaxy called AUDFs01 was discovered by a team from the Inter-University Centre for Astronomy and Astrophysics (IUCAA) Pune.

UNIQUENESS:

India’s AstroSat /UVIT was able to achieve this unique feat because the background noise in the UVIT detector is much less than one on the Hubble Space Telescope of US based NASA.

ACHIEVEMENTS:

India’s Space Scientists for once again proving to the world that India’s capability in Space technology has risen to a distinguished level from where our scientists are now offering cues and giving leads to the Space scientists in other parts of the world.

MILESTONE IN RESEARCH:

“This discovery is a very important clue to how the dark ages of the Universe ended and there was light in the Universe. We need to know when this started, but it has been very hard to find the earliest sources of light”.

About Astrosat:

Launch Vehicle: PSLV-C30/AstroSat MISSION

Type of Satellite: Science & Exploration

ASTROSAT: India’s first dedicated multi wavelength space observatory. This scientific satellite mission endeavours for a more detailed understanding of our universe.

  • ASTROSAT is designed to observe the universe in the Visible, Ultraviolet, low and high energy X-ray regions of the electromagnetic spectrum simultaneously with the help of its five payloads.
  • Astrosat aims at understanding the high energy processes in binary star systems containing neutron stars and black holes, to estimate magnetic fields of neutron stars, to study star birth regions and high energy processes in star systems lying beyond the Milky Way galaxy.
  • This mission has put ISRO in a very exclusive club of nations that have space-based observatories. Only the United States, European Space Agency, Japan and Russia have such observatories in space.

The scientific objectives of ASTROSAT mission are:

  • To understand high energy processes in binary star systems containing neutron stars and black holes
  • Estimate magnetic fields of neutron stars
  • Study star birth regions and high energy processes in star systems lying beyond our galaxy
  • Detect new briefly bright X-ray sources in the sky
  • Perform a limited deep field survey of the Universe in the Ultraviolet region

Source:ISRO

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