Science & Tech
Hubble captures fireworks in ‘skyrocket’ galaxy
Washington:NASA’s Hubble Space Telescope has captured a spectacular fireworks display in a small, nearby galaxy, which resembles a skyrocket.
A team of astronomers found that a firestorm of star birth is lighting up one end of the diminutive galaxy Kiso 5639.
The dwarf galaxy is shaped like a flattened pancake, but because it is tilted edge-on, it resembles a skyrocket, with a brilliant blazing head and a long, star-studded tail.
Astronomers suggested that the frenzied star birth is sparked by intergalactic gas raining on one end of the galaxy as it drifts through space.
“I think Kiso 5639 is a beautiful, up-close example of what must have been common long ago,” said lead researcher Debra Elmegreen of Vassar College, in Poughkeepsie, New York.
“The current thinking is that galaxies in the early universe grow from accreting gas from the surrounding neighbourhood. It’s a stage that galaxies, including our Milky Way, must go through as they are growing up,” Elmegreen said.
Elmegreen used Hubble’s Wide Field Camera 3 to conduct a detailed imaging study of Kiso 5639. The images in different filters reveal information about an object by dissecting its light into its component colours.
Hubble’s crisp resolution helped Elmegreen and her team analyse the giant star-forming clumps in the galaxy and determine the masses and ages of the star clusters.
Hubble uncovered several dozen clusters of stars in the galaxy’s star-forming head, which spans 2,700 light-years across.
These clusters have an average age of less than one million years and masses that are three to six times larger than those in the rest of the galaxy.
Other star formation is taking place throughout the galaxy but on a much smaller scale.
“There is much more star formation going on in the head than what you would expect in such a tiny galaxy,” said team member Bruce Elmegreen of IBM’s Thomas J. Watson’s Research Center, in Yorktown Heights, New York.
The galaxy, located 82 million light-years away, has taken billions of years to develop because it has been drifting through an isolated “desert” in the universe, devoid of much gas.
What triggered the starburst in such a backwater galaxy?
Based on simulations by Daniel Ceverino of the Centre for Astronomy at Heidelberg University in Germany, and other team members, the observations suggest that less than one million years ago, Kiso 5639’s leading edge encountered a filament of gas.
The filament dropped a large clump of matter onto the galaxy, stoking the vigorous star birth.
The team’s results have been accepted for publication in The Astrophysical Journal.
Business
Apple is giving a huge discount on its gadgets: Details inside
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.