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Dust-filled galaxy from early universe discovered

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10 years ago

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London: Debunking earlier theories that earliest galaxies had no dust but gas, an international team of astronomers has discovered a dust-filled galaxy from the very early universe.

The discovery shows that galaxies were very quickly enriched with dust particles containing elements such as carbon and oxygen which could form planets.

“It is the first time dust has been discovered in one of the most distant galaxies ever observed – only 700 million years after the Big Bang. It is a galaxy of modest size and yet it is already full of dust,” said Darach Watson, astrophysicist from the Niels Bohr Institute at University of Copenhagen, Denmark.

“This is very surprising and it tells us that ordinary galaxies were enriched with heavier elements far faster than expected,” Watson added.

Young stars in early galaxies emitted hot ultraviolet light.

The hot ultraviolet radiation heats the surrounding ice-cold dust, which then emits light in the far-infrared.

“It is this far-infrared light, which tells us that there is dust in the galaxy. It is very surprising and it is the first time that dust has been found in such an early galaxy,” the authors said.

The process of star formation must have started very early in the history of the universe and be associated with the formation of dust.

“The detection of large amounts of solid material shows that the galaxy was enriched very early with solids which are a prerequisite for the formation of complex molecules and planets,” Watson said.

The researchers hope that future observations of a large number of distant galaxies could help unravel how frequently such evolved galaxies occur in this very early epoch of the history of the universe.

Dust plays an extremely important role in the universe – both in the formation of planets and new stars.

The results were published in the scientific journal Nature.

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Apple is giving a huge discount on its gadgets: Details inside

Published

3 years ago

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May 5, 2022

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If you want to buy an iPhone and were waiting for a nice offer, then we have a piece of good news for you! Amazon Summer Sale May 2022 has begun and they are offering major discounts on various smartphones, laptops, and smart TVs, among others.

The sale is live now on the e-commerce platform with no-cost EMI options and exchange discounts on various products. In addition to this, Amazon has also partnered with several banks including ICICI, Kotak Bank, and RBL so that customers get instant discounts of up to 10% using their cards and EMI transactions.

Customers can easily enjoy this summer sale and get massive discounts on iPhones. They can also compare prices on Flipkart Big Saving Days Sale 2022 before making a purchase.

 

Amazon Summer Sale May 2022: Discount offer on iPhone 13 

Apple’s coveted phone model iPhone 13 in the 128 GB storage model will be available during the Amazon Summer Sale May 2022 for Rs 64,900. The MRP of the phone is Rs 79,900. This means that the customers will be able to enjoy a discount of up to Rs 15,000 on the purchase of the iPhone 13.

If you have an old iPhone in working condition then you will also be eligible to receive another additional discount worth up to Rs 17,000 on the iPhone 13.

Buy at Rs. 64,900 (MRP – Rs. 79,900)

Features of Apple iPhone 13 

The iPhone is powered by an A15 Bionic processor with 6 core CPU. Apart from this, it has 16 core neural engines. With the iPhone 13, up to 512 GB of storage will be available. The iPhone 13 has a 6.1-inch Retina XDR display with 1000 nits brightness.

The iPhone 13 has a 12-megapixel dual rear camera setup. This time a new wide-angle camera has been given, whose aperture is f/1.6. With this, there is support for sensor optical stabilisation. Night mode has been made better than before. The second lens is also 12 megapixels ultra-wide and has an aperture of f/2.4.

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