All articles tagged with #stellar evolution
Astronomers may have observed the first superkilonova, a hybrid explosion involving both a supernova and a kilonova, suggesting new insights into star death and heavy element formation, though confirmation is pending.
Researchers used archival Hubble data to test axion models by examining white dwarf cooling rates, but found no evidence for axions, setting new constraints on their interaction with electrons and highlighting the need for more innovative detection methods.
Scientists using TESS data have observed that planets are becoming rarer around aging stars, likely due to the stars' expansion and tidal forces that cause planets to decay or be engulfed, providing insights into the future fate of our solar system.
Scientists have explained the 'impossible' merger of massive, rapidly spinning black holes by considering the role of magnetic fields in the evolution of progenitor stars, revealing that magnetic forces can influence black hole mass and spin, and potentially produce black holes within the mass gap observed in previous theories.
Astronomers captured the earliest image of a supernova, SN 2024ggi, just 26 hours after explosion using ESO's VLT, revealing its olive-shaped geometry and providing new insights into the explosion mechanics of massive stars.
Scientists captured the first detailed observation of a supernova shockwave breaking through a star's surface, revealing a surprisingly symmetrical explosion, which provides new insights into the mechanisms driving such cosmic events.
In 2023, astronomers observed a black hole merger that defied existing physics, involving black holes within a forbidden mass range and spinning at near light speed. New simulations incorporating magnetic fields reveal that these fields can eject mass during a star's collapse, producing lighter, fast-spinning black holes and potentially observable gamma-ray bursts, offering insights into these 'impossible' black holes.
Astronomers observed a white dwarf star consuming the remains of a shattered planet, revealing insights into planetary system evolution and offering a glimpse of our own Solar System's distant future, with implications for understanding exoplanet composition and long-term planetary dynamics.
Scientists observed a white dwarf star, LSPM J0207+3331, actively consuming planetary debris, including a rocky body likely similar to Earth, revealing ongoing planetary system dynamics billions of years after star death and challenging traditional views of stellar remnants.
The James Webb Space Telescope captured a detailed image of the Red Spider Nebula, showcasing the complex gas and dust structures from a dying star, offering insights into the future of our own sun as it becomes a red giant billions of years from now.
New images from the James Webb Space Telescope reveal unprecedented details of the Red Spider Nebula, including its sprawling lobes, a glowing core, and signs of a hidden companion star, providing insights into the final stages of stellar evolution.
The James Webb Space Telescope captured a detailed infrared image of the Red Spider Nebula, revealing its hourglass shape, long gas lobes, and potential double star system at its core, showcasing the aftermath of a star shedding its outer layers as it transitions into a red giant.
Astronomers have observed a 'zombie' white dwarf star, LSPM J0207+3331, actively devouring remnants of a rocky planet after three billion years, challenging previous assumptions about the dormancy of such stars and suggesting planetary systems can remain unstable for eons.
Astronomers discovered a 3 billion-year-old white dwarf actively consuming material from its planetary system, challenging previous beliefs about the stability of planetary remnants long after stellar death, with evidence of ongoing dynamical disturbances and potential outer planets.
Researchers have developed a new model showing that dark matter, specifically asymmetric dark matter, can influence the collapse of stars in the 8-10 solar mass range, potentially leading to the formation of unusually low-mass neutron stars and affecting supernova energetics, offering new insights into dark matter's role in stellar processes.