Tuesday, August 16, 2022

Visuals of spiral galaxies captured by James Webb telescope create goosebumps: Okzone Techno

Jakarta – wonderful moment from Galaxy The spiral was captured by the James Webb Space Telescope (JWST). The view here is so spectacular that anyone who sees it gets goosebumps.

There are at least two spectacular spiral galaxies captured by JWST. The first is NGC 628 which is known as Phantom Galaxy and the second is NGC 7496.

These two spiral galaxies are relatively close to the Milky Way. And both are the subject of ongoing observations as part of the Physics Survey at High Angle Resolution in Nearby Galaxies (PHANGS).

As reported by Science Alert, Saturday (23/7/2022), the survey was undertaken to map the relationship between the young stars themselves and the cold molecular gas clouds that gave rise to them.

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NGC 628 is a type of galaxy known as a “Big Design” spiral galaxy. This galaxy has bulging, well-formed and relatively open arms.

NGC 628 is only 32 million light-years away, enough to provide too many details to study. And no less important is that spiral galaxies are rich in star-forming gas.

Astronomers have observed at least three supernovae in NGC 628 since the turn of the millennium.

NGC 7496, meanwhile, is located only 24 million light-years away. This galaxy is known as the barred spiral galaxy, with the spiral arms extending from separate trunks that cross the galaxy center.

This is thought to be the result of uneven density in the disk of the Milky Way, the dense regions pulling stars toward themselves to form rods. These rods are thought to be rich star formation regions because the gas is blown inward towards the centre.

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Therefore, beautifully barred spirals such as the visible NGC 7496 are certainly an excellent laboratory for studying the birth of stars.

(AMJ)

Nation World News Desk
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