researchers have discovered the formation sites for young stars in the outskirts of galaxies. These formation sites are molecular cloud hearts, and researchers have found 23 of them in a small region of Galaxy M83.

Here’s some related information about young stars and galaxies: 

• Star formation in spiral galaxies Spiral galaxies have more gas than other galaxies, which leads to active star formation. When another galaxy passes through the center of a gas-rich spiral galaxy, the internal gases ripple outward and collide with the existing gas. This can trigger new waves of star formation on the outskirts. 
• Young stars and gas According to NASA, the interaction between a young star’s magnetic field and the surrounding gas can cause brightness to increase episodically. 
• Young stars and water ice The James Webb Space Telescope (JWST) discovered water ice at the Milky Way’s galactic center. Water ice is often found in protoplanetary disks, which are disks of dusty material that surround young stars.

The team discovered a total of 23 of these solitary molecular cloud hearts, each within a tiny region of Galaxy M83. Now that researchers know the formation sites for these outskirt stars exist (albeit looking very distinct from their inner galactic counterparts), they can put one 18-year-old mystery to rest

The Atacama Large Millimeter/submillimeter Array (ALMA)discovered 23 molecular clouds in the extended ultraviolet (XUV) disk of the spiral galaxy M83. The clouds were discovered in a tiny region of the galaxy, and the observations could only see the cores of the clouds

The research was presented at the 243rd American Astronomical Society (AAS) meeting in New Orleans. The research suggests that the 23 molecular clouds show a different type of star formation. The clouds appear different from their counterparts in typical star-forming sites in galaxies. 

M83, also known as the Southern Pinwheel, is located 15 million light-years away from Earth in the constellation Hydra. It was discovered in 1752 by the French astronomer Nicolas Louis de Lacaille

Researchers have discovered the formation sites for young stars in the outskirts of galaxies. The discovery was made by finding 23 molecular clouds in a small region of Galaxy M83. The clouds appear different from the inner galactic counterparts

Scientists have known that many galaxies have young stars at their far edges, but they couldn’t understand how and why they were made. The discovery of the molecular clouds shows a different type of star formation. 

In November 2023, astronomers also discovered the first example of a swirling disk of material feeding a young star in a galaxy outside the Milky Way. The discovery is the first time such a disc has been found outside our galaxy.

Spiral galaxies and irregular galaxies are sites of ongoing star formation and contain many young stars

Spiral galaxies are made up of young stars, gas, and dust.  The gas and dust are used to make new stars, and these baby stars glow very brightly. Spiral galaxies have a disk, formed of both stars and gas, surrounding a central bulge.  The disk contains mainly gas, dust, and young stars. 

Irregular galaxies are typically smaller than other types of galaxies. They generally have many bright, young stars and lots of gas and dust to form new stars. 

Disk galaxies contain mainly blue stars that are very massive and are known to have short lives. Because these young stars still exist in disk galaxies, these galaxies are referred to as young galaxies. 

Nearly all the galaxies at distances greater than 11 billion light-years are extremely blue, indicating that they contain a lot of young stars

Spiral galaxies are dominated by young, blue Population I stars. The youngest stars in spiral galaxies form in the gas-rich arms. 

Blue galaxies are more distant than yellow galaxies because they have massive blue stars. The light of blue galaxies is dominated by young stars. 

Irregular galaxies have the largest percentage of young stars. Scientists believe that irregular galaxies are the youngest in our universe due to their irregular shape and active star formation. 

Elliptical galaxies contain mostly older stars. Their light is dominated by older reddish stars.

The youngest stars in a galaxy are found in the gas-rich arms. These stars are rich in metals and orbit the galaxy’s center at high speeds

Older stars can be found throughout the disk and within the bulge and halo. The stars in the halo are old and have low abundances of elements heavier than hydrogen and helium. 

The Milky Way’s youngest stars are found in the bulge, outside of the nuclear star cluster surrounding the supermassive black hole. These Cepheids live in only a restricted region of the sky

Astronomers have discovered 23 molecular cloud hearts in a small region of Galaxy M83. These clouds are concentrations of dense molecular gas that are evidence of star formation. 

The molecular clouds are different from other star-forming sites in galaxies. The large bodies of the clouds are not visible, but only their star-forming dense cores, the “hearts” of the clouds, were observed. 

Molecular clouds are a typical site for star formation in the inner parts of galaxies. However, scientists have not been able to understand how and why the young stars at the far edges of many galaxies are made

A more compact site of star formation is called a Bok globule. These are opaque clouds of dense gas and dust that are typically up to a light year across and contain a few solar masses. They can be seen as dark clouds against bright emission nebulae or background stars.

Star formation occurs in interstellar molecular clouds, which are opaque clumps of cold gas and dust. The process begins when some of the clumps reach a critical mass, allowing them to collapse under their own gravity

The spiral arms of a spiral galaxy are the most likely places for star formation to occur. The high density of spiral arms means there is a lot of mass in a small volume, which creates a lot of gravity. This gravity pushes gas and dust to produce stars more effectively in the spiral arms than in other sections of the galaxy. 

The protostellar and protocluster cores that emerge within the cloud are the precise sites of star formation. These cores strongly radiate in the 1mm band from cold dust within them. 

Star formation regions and young stars are closely associated with HII regions, which are emission line nebulae. These nebulae are formed in the interaction of the young star winds and UV photon flux with the ambient interstellar medium.

Please subscribe like comment on my blogs on universe discoveries

(Full article source google)

https://0a770pnm951362gg0fcfozlw0t.hop.clickbank.net

Best Bluetooth devices on heavy discount on Amazon