Stellar feedback as a research area investigates how energy, momentum, and chemically enriched material injected by stars regulate the formation and evolution of galaxies and the interstellar medium (ISM). It encompasses processes such as photoionization, stellar winds, radiation pressure, and supernova explosions, and their roles in heating, ionizing, and dispersing gas, driving turbulence, launching galactic outflows, and quenching or triggering star formation. The field combines analytical models, high-resolution simulations, and multiwavelength observations to quantify feedback efficiencies, coupling mechanisms to the ISM, and the impact on galaxy scaling relations, metal enrichment, and the broader baryon cycle in cosmological structure formation.
A new study led by UNLV scientists sheds light on how planets, including Earth, formed in our galaxy—and why the life and death of nearby stars are an important piece of the puzzle.
Astronomy
Oct 17, 2025
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Astronomers have observed an explosion in space that is pushing back against and influencing the baby star which triggered the explosion in the first place. If explosions like this one are common around young stars, then ...
Astronomy
Aug 5, 2025
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Using the world's largest solar telescope, a team of scientists has captured one of the most detailed views ever of a microflare—a small yet powerful solar explosion. The images are helping scientists understand the complexity ...
Astronomy
Jun 16, 2025
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Using the NOrthern Extended Millimeter Array (NOEMA) and the Atacama Large Millimeter/submillimeter Array (ALMA), Chinese astronomers have observed a young stellar object known as G24.33+0.14 in the process of cooling after ...
Our new study of the nearby starburst galaxy Haro 11 has shown that strong X-ray-emitting superwinds may be a key mechanism enabling galaxies to leak ionizing radiation, which is believed to have played a major role in the ...
A new study has unveiled new insights into the effects of massive stars on nearby molecular gas and star formation in the W4 super-large HII region.
Astronomy
Feb 10, 2025
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Astronomers have unveiled an explosive cosmic fireworks display of stars interacting with their environment. This dazzling spectacle—due to powerful winds flowing from the stars—marks a major milestone in the ability to study ...
Astronomy
Jan 15, 2025
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Once upon a time, the core of a massive star collapsed, creating a shockwave that blasted outward, ripping the star apart as it went. When the shockwave reached the star's surface, it punched through, generating a brief, ...
Astronomy
Jan 14, 2025
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In a study published in Nature Communications, researchers from the Leibniz-Institut for Astrophysics Potsdam (AIP) and the HUN-REN Research Centre for Astronomy and Earth Sciences (HUN-REN CSFK) have reconstructed the temporal ...
Astronomy
Dec 4, 2024
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Scientists may have finally hit upon the possible mysterious sources that have pumped heat and kept alive the fiery hot gas that has recently been detected surrounding the Milky Way but has so far remained unexplained.
Astronomy
Nov 22, 2024
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