#AstroMiniBR: Mysterious star 30 times bigger than the Sun

Here at TecMundo I follow the most intriguing and fascinating news in astronomy! We and our team every week #AstroMiniBRWe are looking for information about our universe to share with you. Check this out!

1. A star containing high levels of lithium

Astronomers explained discovery of an unusual star containing high levels of lithiumIt is a rare element in the universe and is essential to our understanding of stellar evolution and cosmic chemistry. Named J0524-0336 and located about 30,000 light-years from Earth, this star has an abundance of lithium dozens of times greater than expected for stars of its age and type.

The detection was achieved using high-sensitivity spectroscopy, which reveals chemical signatures of lithium in the star’s atmosphere. This element was formed in the first minutes after the Big Bang.It is normally destroyed in nuclear reactions in stars, making it rare to observe such high levels on celestial bodies.

The presence of lithium in such significant quantities challenges theoretical models of stellar evolution and primitive nucleosynthesis. One possibility is that the star is capturing lithium-rich material from a fragmented planetary system; Another hypothesis suggests that supernova explosions or nearby neutron star mergers may have contributed to the enrichment of its composition.

This discovery not only helps clarify the life cycle of lithium in the universe, but also opens new doors to the study of the dynamic processes that shape the chemical composition of stars and their environments.

2. The surface of the Sun in detail!

The video you see below is presented Fascinating images of the Sun’s surface A study by NASA Solar Observatory (NRO) revealing unprecedented details of solar convection cells.

This video shows a “dynamic landscape” of constantly moving patterns that resemble giant bubbles. Each convection cell, also called a solar bead, is a region where superheated gases from the Sun’s interior rise to the surface, cool, and fall again, creating a continuous cycle that fuels solar dynamics.

The estimated sizes of these cells are impressive: Each granule is approximately 1,000 to 2,000 kilometers in diameter; This is roughly the size of countries like France or Spain.

These observations help scientists better understand the transfer of energy within the Sun and how it affects events such as solar winds and plasma bursts. The darker edges of the granules show where cold gas is sinking, while the brighter middle regions show where hot gas is rising.

The accuracy of these high-resolution images is important for improving stellar convection models. It is vital not only for studying the Sun, but also for understanding the dynamics of different types of stars..

3. Collision of distant quasars!

The James Webb Space Telescope (JWST) recorded the oldest and most distant collision ever observed between two quasars in the ZS7 galactic system, 12 billion light-years from Earth. Quasars, active galactic nuclei powered by supermassive black holes, emitted intense electromagnetic radiation during this event..

One of the black holes involved has a mass estimated to be 50 million times the mass of the Sun, while the second has similar properties, but its exact mass has not yet been confirmed due to the density of the gas around it.

The collision between these massive objects attracts great attention from the scientific community. Because it produces gravitational waves that can be detected by future deviceslike Laser Interferometer Space Antenna (LISA), scheduled to launch in 2035.

Studying these collisions helps scientists understand how black holes grew rapidly in the early universe and how they influenced the evolution of galaxies. Moreover, JWST’s ability to spatially separate two black holes and study the hot, ionized gases around them offers an unprecedented insight into the complex physics of these systems.

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