- Recently, a powerful new telescope ASKAP, in Australia has mapped vast areas of the universe in record-breaking time, revealing a million new galaxies and opening the way to new discoveries.
- A telescope designed over a decade ago and located about 800 km north of Perth.
- It became fully operational in February 2019 and is currently conducting pilot surveys of the sky before it can begin large-scale projects from 2021 onward.
- ASKAP surveys are designed to map the structure and evolution of the Universe, which it does by observing galaxies and the hydrogen gas that they contain.
- One of its most important features is its wide field of view, because of which it has been able to take panoramic pictures of the sky in great detail.
- The telescope uses novel technology developed by CSIRO- the Australian space agency, which is a kind of a “radio camera” to achieve high survey speeds and consists of 36 dish antennas, which are each 12m in diameter.
- The survey team has been able to observe over 83 per cent of the sky visible from ASKAP’s site in Western Australia.
Significance of the Study
- The present Rapid ASKAP Continuum Survey (RACS) taken by the ASKAP telescope is like a “Google map” of the Universe.
- Mapping the Universe on such a scale enables astronomers to study the formation of stars and how galaxies and their supermassive black holes evolve and interact with each other.
- Significantly, the images the telescope has taken are on average deeper and have better spatial resolution compared to those taken during other surveys of the sky.
- The aim of the RACS survey is to generate images that will aid future surveys undertaken using the telescope.
Source: The Hindu