Tag:

Galaxy

Newly Discovered Nube Galaxy Confuses Astronomers – Revolutionary Findings in Astronomy

by Chief editor of world-today-news.com February 5, 2024

written by Chief editor of world-today-news.com

Jakarta –

For Astronomer confused by his own discovery. Because they discovered a new and unique galaxy which is currently named Nube.

This discovery was led by the Instito de Astrophysica de Canarias (IAC), in collaboration with the University of La Laguna (ULL) and several other institutions. It is known that Nube has different characteristics.

Reporting from Earth, Monday (5/2/2024), this galaxy is ten times fainter and wider than others with a comparable number of stars. However, its size is smaller than the Milky Way, and its mass is similar to that of the Small Magellanic Cloud.

SCROLL TO CONTINUE WITH CONTENT

Nube is said to have defied the general rules that apply to most galaxies. It has a higher density of stars in its inner regions.

“The density of stars varies very little across the object, which is why it is so faint, and we weren’t able to observe it well until we got ultra-deep images from the Gran Telescopio Canarias (GTC),” said Mireia Montes, an author on the study.

Well, these extreme characteristics are what make astronomers confused. Montes admitted that he did not know how the galaxy was created, considering its unusual characteristics.

The study of Nube has the potential to revolutionize people’s understanding of the universe. Ignacio Trujillo, second author on the study, speculated on Nube’s uniqueness.

According to him, the galaxy shows that dark matter particles have a very small mass. In this way, it can align the world of quantum physics with cosmic phenomena.

“If this hypothesis is confirmed, this would be one of nature’s most beautiful demonstrations, uniting the smallest world with the largest world,” concluded Trujillo.

Actually, this discovery happened by chance. At that time Trujillo was analyzing images from the Sloan Digital Sky Survey. Here he saw an interesting faint spot, and it turned out to be a spreading object.

In short, discovery Nube Galaxy become a new chapter in the world astronomy. This is because its existence provides a great opportunity to increase knowledge about outer space.

Watch the video “Astronomers repeatedly receive repeated radio signals from exoplanets”
[Gambas:Video 20detik]

(hps/afr)

2024-02-05 01:45:31
#Strange #Galaxy #Named #Nube #Confused #Astronomers

February 5, 2024 0 comments

Technology

Thai Astronomers Discover 13 Low-Mass Galaxies with James Webb Space Telescope

by Chief editor of world-today-news.com February 1, 2024

written by Chief editor of world-today-news.com

The National Astronomical Research Institute reveals the talents of Thai astronomers, who have discovered 13 more low-mass galaxies with the James Webb Space Telescope, less massive than the Milky Way galaxy.

Today (Feb. 1), the page “NARIT, National Astronomical Research Institute” posted a message saying, “NARIT researchers discovered 13 additional low-mass galaxies with the James Webb Space Telescope. Dr. Nicha Leetochawalit NARIT Researcher, Cosmology and Theoretical Astronomy Research Group Lead a team of astronomers under the GLASS collaboration research network Using data from the first images of the James Webb Space Telescope, we searched for tiny galaxies. Which occurred while the universe was about 550-700 million years old, or about 13,000 million years ago, discovered 13 galaxies with masses 10-100 times less than our Milky Way galaxy, considered another group of galaxies with the least mass. As ever discovered during this period of the universe The discovery gives astronomers more information about low-mass galaxies during this time in the universe. and enough to be used to analyze statistical properties This research has been published in the journal Astrophysical Journal Letters

About 13,000 million years ago, while the universe was about 550-700 million years old, it was a period in which the matter between galaxies turned into plasma again, called the Epoch of Reionization. In order to understand the evolution of the universe in that era, Astronomers need to study galaxies during the Epoch of Reionization, including their mass, age, shape, and even metallicity. Especially galaxies with low mass. However, Observing low mass galaxies is difficult. Because those galaxies are very far from our world. And it is extremely bright, requiring the use of large telescopes such as the James Webb Space Telescope.

For this research, the researchers used the first set of imaging data from the James Webb Space Telescope under the project. GLASS-JWST-ERS program searches for low-mass galaxies The first set of images was taken using the NIRCam instrument for observation over a period of 20 hours. Images obtained with this device produce images captured through seven filters in infrared wavelengths that cannot be seen with the naked eye. Covering wavelengths between 900-4,400 nanometers, the imaging data led to the discovery of 13 new galaxies that are 10-100 times less massive than our own Milky Way galaxy.

When the newly discovered galaxy data is calculated It was found that these galaxies are producing 1-10 new stars per year, and the average age of stars within these galaxies is between 30-200 million years, in accordance with theories that astronomers have predicted. In addition, from the age data of sphere The research team was able to create a simple calculation formula. to estimate the birth rate of new stars Including the mass of galaxies as well.”

Click the original post.

February 1, 2024 0 comments

Technology

NASA’s James Webb Space Telescope Unveils Stunning New Images of 19 Spiral Galaxies

by Chief editor of world-today-news.com January 30, 2024

written by Chief editor of world-today-news.com

The James Webb Space Telescope releases new images. It is a collection of 19 spiral galaxies that are both beautiful and scientifically valuable.

On January 29th, NASA’s James Webb Space Telescope (JWST) A new set of pictures has been published. that shows in stunning detail 19 spiral galaxies located relatively close to our Milky Way. Provides new clues about star formation and the structure and evolution of galaxies.

The images were released by a team of scientists involved in a project called High Resolution Angular Physics in Nearby Galaxies (PHANGS), which operates at several major astronomical observatories.

What do you think? When there might be a business “Take the ashes and bury them on the moon.”

NASA wraps up mission “Ingenuity”, a mini helicopter to explore Mars.

The James Webb camera reveals images of Nebula N79, a star production facility.

Of the 19 galaxies, the closest to us is NGC5068, which is about 15 million light-years from Earth, and the most distant galaxy is NGC1365, which is about 60 million light-years from Earth.

Spiral galaxies look like gigantic molluscs or spirals. It is a galaxy that is commonly found. Including our own Milky Way, which is one of the spiral galaxies.

Images of the 19 spiral galaxies from the Webb Near-Infrared Camera (NIRCam) and the Mid-Range Infrared Imager (MIRI) show approximately 100,000 star clusters and millions, if not billions, of stars.

Webb’s NIRCam captured millions of stars in these images. which glows in a blue tone Some stars are spread across spiral arms. But some stars are tightly grouped together into star clusters.

Data from MIRI highlighted the dust until it looked like it glowed. which shows us that Where is the dust around and between stars? It also highlights stars that are not yet fully formed. They remain enveloped in the gas and dust that nourishes their growth.

Janice Lee, astronomer at the Space Telescope Science Institute One of the PHANGS project scientists said: “Webb’s new images are extraordinary … They are astonishing even for researchers who have been studying these same galaxies for decades. Bubbles and fibers can be seen down to the smallest size ever seen. and tells the story of the star formation cycle.”

Thomas Williams, astronomer from Oxford University The team, who led the team’s data processing on the images, said: “This information is important. Because it gives us a new perspective on the earliest stages of star formation.”

He added: “Stars are born deep within dust clouds that completely block light at visible wavelengths … but these dust clouds appear brighter at Webb wavelengths. We don’t know much about this period. I don’t even know how long it will actually last. Therefore, this information is important for understanding how stars in our galaxy began.”

About half of spiral galaxies have a linear rod structure. similar to a gas rod which comes out of the center of the galaxy

Evidence also shows that The galaxy grows from the inside out. Star formation begins at the core of galaxies and spreads along their arms. and swirling away from the center The farther a star is from the galactic core, It is likely that the star is much younger. On the contrary The area near the core, highlighted by the blue spotlight, is the oldest cluster of stars.

Williams said “Galaxies form from the inside out. And it grows larger throughout its lifespan. The spiral arms sweep up the gas that would form the star. And the gas column will act to pull that same gas toward the black hole at the center of the galaxy.”

The images also allow scientists to revise our understanding of the structure of the dust and gas clouds that form stars and planets.

Janice Lee, astronomer at the Space Telescope Science Institute One of the PHANGS project scientists said: “These images are not only stunning. But it also tells the story of the cycle of star formation. This includes the process by which the energy and momentum released by young stars into space.”

Eric Rosolowski, an astronomer from the University of Alberta, said: “When using Hubble We will see starlight from the galaxy. But some of the light is blocked by clouds of dust.” This constraint makes it difficult to understand some of the galaxy’s processes. “But with Webb’s infrared imaging, We were able to see through this dust cloud to see stars hidden behind and within the dust cloud.”

Compiled from NASA / Reuters

January 30, 2024 0 comments

Business

Galaxy S24 Series Breaks Records with 1.21 Million Domestic Pre-orders

by Chief editor of world-today-news.com January 26, 2024

written by Chief editor of world-today-news.com

Money Today Reporter Kim In-han | 2024.01.26 20:42

Domestic pre-orders of approximately 1.21 million units, the largest number among the Galaxy S series

[서울=뉴시스] Reporter Hyejin Kim = Customers who pre-purchased the Galaxy S24 are examining the product at KT Plaza Gwanghwamun Central Branch in Jongno-gu, Seoul on the morning of the 26th. The Galaxy S24 series will be officially released on the 31st. (Joint coverage) 2024.01.26. The pre-order opening period for the Galaxy S24 series, an ‘AI (artificial intelligence) smartphone’ developed by Samsung Electronics, has been extended to the 8th of next month.

Samsung Electronics announced on the 26th that it will extend the activation period for customers who pre-ordered the Galaxy S24 series through mobile carriers from January 31 to February 8.

Those who reserve self-sufficient products can receive the Galaxy S24 series regardless of activation or not, and can apply for pre-order benefits through the website until the 29th of next month.

Samsung Electronics announced on its website that day, “The pre-order quantity for the Galaxy S24 series has exceeded the prepared quantity,” and “For customers who have difficulty activating the model they want, we are extending the pre-order activation period for all S24 models.”

The Galaxy S24 series achieved record-breaking box office success. Previously, domestic pre-orders for the Galaxy S24 series, which were held from the 19th to the 25th of this month, reached approximately 1.21 million units. This is a new record, surpassing the 1.09 million units sold for the Galaxy S23 series last year.

The Galaxy S24 series will be officially released on the 31st. The selling price starts at 1,155,000 won for the basic model, 1,353,000 won for the plus model, and 1,698,400 won for the ultra model.

Announcement of extension of pre-order opening period for Samsung Electronics Galaxy S24 series. / Photo = Samsung Electronics

2024-01-26 11:42:35
#Samsungs #phone #big #hit.. #sell #dont #Preorder #opening #period #extended #Money #Today

January 26, 2024 0 comments

Technology

Uncovering the Mysteries of the Cosmic Web: A Look at the Largest Structure in the Universe

by Chief editor of world-today-news.com January 26, 2024

written by Chief editor of world-today-news.com

Cosmic Web The wall of a galaxy that stretches hundreds of millions of light years. The proposed idea is that galaxies are not randomly distributed. and may be an important part of the space map.

What is cosmic fiber?

cosmic fiber Or galaxy filament, from the study of physical cosmology, is the largest structure known to man and appears in the universe. The thread-like structure has a length of approximately 50 to 80 h-1 megaparsec, spanning a large portion of empty space in the universe. The cosmic web is made up of many galaxies that are drawn together by gravity. There are many galaxies that are close together called galaxy cluster

In 2006, scientists announced their discovery. Three cosmic filaments line up to form the largest structure ever known to mankind, called Lyman alpha blobs. And in 2019, scientists were able to image them. cosmic fiber For the first time, the characteristics of cosmic fibers They are strands of light, like a large network of galaxies that are pulled together by gravity. It’s like a connecting path of galaxies.

Origin of cosmic fibers It is believed to be something that is left over from The Big Bang is in the past and is what stores almost all of the gases of space. And it will supply that gas to create and nourish stars and galaxies like a blood vessel.

Astronomers have known for some time that Various galaxies The universe is not randomly distributed. But it spreads systematically into a structure similar to fibers. Astronomers can map this structure by studying the distribution of galaxies. Many nebulae also lie along this structure.

expansion of cosmic fiber

scientist Many people believe that the universe is expanding through cosmic filaments. It might be part of that process. which a team of astrophysicists from the University of Michigan in the United States Found some abnormalities indicating that The mechanics of the universe are not pushing for the expansion of space. Including driving the growth of cosmic fiber alone But there is also a mysterious energy holding back the process.

As Dr. Nguyen Nhat Minh, an astrophysicist at the University of Michigan, stated that The universe is made up of matter that forms galaxies and large-scale structures such as the cosmic filament. It is also full of empty space or space that is expanding more and more. until causing various galaxies Separated more and more from each other.

As for the mechanism of formation and aggregation of space objects that should have dispersed after the Big Bang, Made possible by gravity, from dark matter, in opposition to the ceaseless expansion of space. That is powered by a mysterious energy that scientists call dark energy.

Mammoth One Large Cosmic Filament

Mammoth One is a large structure of cosmic fibers. An international team of astronomers has announced the discovery of a giant hydrogen nebula located approximately 100 kilometers away. Ten billion light years away is called Mammoth One (MAMMOTH-).

The interesting thing about Mammoth One lies in the fact that There is no energy source in that area. But it is very bright. Scientists therefore speculate that Mammoth One may be one of the main structures of the cosmic web. This is because the density of newly formed galaxies is very high.

Incidentally, the discovery of Mammoth One was previously published in the journal The Astrophysical Journal is a good confirmation that There are many undiscovered large objects in the universe.

cosmic fiber with the evolution of the universe

Many astronomers believe that cosmic fiber Affects the evolution of the universe After the discovery of Mammoth One in 2017, it was later discovered The largest cosmic filaments to date include: The Hercules–Corona Borealis Great Wall measures approximately ten billion light years in length.

The Hercules–Corona Borealis Great Wall is therefore the largest structure in the observable universe. Until it received the nickname galaxy wall The largest structure in the universe was the subject of the gamma ray observation. is a large group of galaxies that form a giant disc approximately 10 billion light-years long, 7.2 billion light-years wide and nearly 1 billion light-years thick. It is in the constellations Hercules and Corona Borealis or Northern Crown Star

Hence the names Hercules – Northern Crown or Hercules – Corona Borealis. The Great Wall refers to a vast collection of galaxies of all shapes and sizes. The most obvious benefit of the cosmic filament might be to make it possible to Map of the universe or map of space Easier to do

However, the matter of the cosmic fibers Scientists around the world still have a lot to study. Due to its high complexity Both forms of connection process of formation and creating an impact on the universe

Searched and edited by Sittichot Suphawan.

Picture from ESO/ILLUSTRIS COLLABORATION

Reference information

Webb Telescope Reveals Early Galaxies Shaped Like Cosmic Caterpillars and Breadsticks, Study Finds

by Chief editor of world-today-news.com January 22, 2024

written by Chief editor of world-today-news.com

The Webb Telescope looks back to the beginning of time. He saw early galaxies there that were nothing like today’s. They are not elliptical, nor irregular, nor spiral. They are like baguettes or beer sticks. Or perhaps caterpillars that chew their way through reality a few hundred million years old. This is probably how the germ of the Milky Way looked.

Cosmic caterpillars from the dawn of time. Credit: Pandya et al. (2024), arXiv.

As I’m sure everyone knows by now, the James Webb Space Telescope sees further than any comparable telescope has ever seen. It looks into the very early universe. And as it turns out, he sees remarkable things there.

Viraj Pandya. Credit: Columbia University.

Viraj Pandya of Columbia University and his colleagues used the Webb Telescope to survey very early galaxies. They analyzed images taken by Webb as part of the Cosmic Evolution Early Release Science (CEERS) Survey, covering the early universe up to just 600 million years after the Big Bang.

Pandya seems to have a penchant for Italian pastries. It turns out that galaxies in the early universe are typically flattened, with most of them reminding Pandya of Italian baguettes, or “bread” sticks known as grissini. In our country, they are more common as “beer” or “bakery” sticks in various variants.

Galaxies in the early universe. Credit: NASA, ESA, CSA, STScI, Steve Finkelstein (UT Austin), Micaela Bagley (UT Austin), Rebecca Larson (UT Austin).

Less common in the early universe are galaxies that look like a pizza crust. Spherical galaxies are rare there, which Pandya likens to balls of pizza dough. In the end, Pandya gets somewhat lost in the comparisons, because their publication talks about bananas, which the authors rather unhappily derive from some kind of graph that is not very comprehensible to the layman. According to the author of this text, early galaxies are bright cosmic caterpillars that bite through the reality of the early universe.

If we were to go back in time, what would the Milky Way look like in this Italian bakery, or perhaps an insectarium? According to the authors of the study, the young (proto)Milky Way was most likely a “caterpillar.” At the same time, it is clear that it was much smaller than today. Galaxies at the time had understandably little time to grow. The galaxies we observe today in the nearby universe have undergone billions of years of development, full of dramatic galactic cannibalism – and have sprung up accordingly.

But why the caterpillar/rod shape? It is a mystery to scientists. According to one hypothesis, the early universe was full of filaments of dark matter, which formed a cosmic “skeleton,” on which cosmic material and stars were then “hung.” Such filaments, if they existed, should still be in space today. However, with the expansion of the universe, they would increase in size and become rarer, due to which they would no longer shape the galaxies into the form of caterpillars. Which obviously they don’t shape. The fascinating research into early galaxies will undoubtedly continue.

Video: Galaxies Are Going Bananas. And Breadsticks, Too

Literature

Columbia News 17. 1. 2024.

arXiv:2310.15232.

2024-01-21 17:42:19
#ellipses #spirals #Early #galaxies #resembled #caterpillars

January 22, 2024 0 comments

Newer Posts

Older Posts

Galaxy

Domestic pre-orders of approximately 1.21 million units, the largest number among the Galaxy S series

Cosmic Web The wall of a galaxy that stretches hundreds of millions of light years. The proposed idea is that galaxies are not randomly distributed. and may be an important part of the space map.

What is cosmic fiber?

expansion of cosmic fiber

Mammoth One Large Cosmic Filament

Read more: Parasitic black holes, black holes that absorb the material of stars from within.