In an interview with IE, astronomer Sebastién Comerón explained the paradox of a dark matter-deficient galaxy being used as evidence for dark matter.
In July last year, an international team of scientists announced they had discovered a galaxy that showed no signs of containing dark matter.
“Dark matter is invisible, but its gravity is as real and detectable as that of “regular” matter such as stars or gas clouds,” Comerón explained. “By studying the motion of stars in the outskirts of galaxies around the center of the galaxy, we can infer how much mass is found within their orbits.” “Most galaxies have undergone a complicated evolution since they were born,” Comerón said. “Galaxies interact with other galaxies, they cannibalize smaller bodies. But NGC 1277 seems to be one of a handful of galaxies in the local universe that have remained virtually untouched since its formation, some 10 or 12 billion years ago.”
The first possibility considered by Comerón’s team is that “most of the dark matter was removed by the environment once NGC 1277 fell into the rich galaxy cluster to which it belongs,” he said. The second is that “NGC 1277 was born without dark matter at all.” “Until very recently, I was not completely sure about the validity of the dark matter hypothesis,” he explained, “and I considered other possibilities, such as alternative gravities, to be a plausible alternative explanation to the apparent lack of matter in galaxies and galaxy clusters.”
Indonesia Berita Terbaru, Indonesia Berita utama
Similar News:Anda juga dapat membaca berita serupa dengan ini yang kami kumpulkan dari sumber berita lain.
Comer uncovers pattern in Biden family business probe: 'Very concerning'Rep. James Comer, R-Ky., reveals new evidence in the Biden family business probe as testimonies from key players are underway in Congress
Baca lebih lajut »
The Top Beauty Trends At NYFW: Matte Skin & Sunscreen“The whole idea is you walked five blocks in New York City in February and you just have a beautiful natural flush — but you're also protected from the winter UV.”
Baca lebih lajut »
Merit's New Matte Lipstick Belongs in Your Everyday RotationSophia Vilensky is a freelance beauty writer at Marie Claire, where she writes about the latest and greatest skincare launches, hair colors, and Cardi B manicures. Her work can also be found at Byrdie, Bravo, and Us Weekly. You can find her on Instagram sophiavilensky.
Baca lebih lajut »
This TikTok-Viral Lava Lamp Lip Stain Goes on Glittery and Magically Dries Matteaf94 Lava Lust Lip Stain in Baby Says Buy Now $10 af94’s Lava Lust Lip Stain in Baby Says is a gorgeous deep berry pink color. If you’re like me and enjoy a deeper lip stain, this shade will be right up your alley.
Baca lebih lajut »
I Wore This Matte Lipstick for 5+ Hours of Eating and Drinking — and It Didn’t BudgeI put Merit’s Matte Signature Lipstick to the ultimate wear test and it offered vibrant buildable color, didn’t dry my lips out, and stayed on for over five hours — no application needed. Shop it for $26.
Baca lebih lajut »
Revenues rise at Mytheresa as US clients prove resilientThough the online luxury retailer's profits dwindled at the end of 2023, the business still outperformed many of its ecommerce competitors.
Baca lebih lajut »