Stars, as physical systems, are self-gravitating, approximately hydrostatic spheres of plasma in which energy is generated predominantly by thermonuclear fusion in their cores and transported outward by radiation and/or convection. Their structure is governed by the equations of stellar structure, balancing gravity, gas and radiation pressure, and energy transport. Stellar properties such as mass, composition, and rotation determine their internal stratification, nucleosynthetic pathways, luminosity, temperature, and evolutionary tracks. Stars interact with their environments via radiation, stellar winds, and mass loss, and they serve as fundamental sites of element synthesis and key components of galactic and cosmological structure.
Based on the data from the Magellan-Clay telescope in Chile, astronomers have performed a chemo-dynamical study of a very metal-poor star known as HE 2315−4240. Results of the study, published on the preprint server arXiv, ...
A massive black hole has torn apart one star and is now using that stellar wreckage to pummel another star or smaller black hole that used to be in the clear.
Astronomy
Oct 9, 2024
0
182
Professional and amateur astronomers have made a groundbreaking discovery with the help of artificial intelligence, identifying a unique triple star system named TIC 290061484. This stellar trio was uncovered through cosmic ...
Space Exploration
Oct 2, 2024
0
251
Using the Gran Telescopio Canarias (GTC), astronomers from Italy and Spain have carried out high-temporal-resolution optical spectroscopic observations of a transitional millisecond pulsar designated PSR J1023+0038. Results ...
When a massive star explodes as a supernova, it does more than release an extraordinary amount of energy. Supernovae explosions are responsible for creating some of the heavy elements, including iron, which is blasted out ...
Astronomy
Sep 25, 2024
0
125
Vincent van Gogh's painting "The Starry Night" depicts a swirling blue sky with yellow moon and stars. The sky is an explosion of colors and shapes, each star encapsulated in ripples of yellow, gleaming with light like reflections ...
Soft Matter
Sep 17, 2024
0
130
How are stars born, and how do they die? How do they produce the energy that keeps them burning for billions of years? How do they create the elements we observe today? Definitive answers to these questions continue to elude ...
General Physics
Sep 12, 2024
0
107
As a typical two-dimensional material, MoS2 exhibits unique optical and electrical properties due to its atomic thickness in the vertical dimension, making it a research hotspot in the field of optoelectronic detection.
Nanophysics
Apr 24, 2024
0
75
In creating five new isotopes, an international research team working at the Facility for Rare Isotope Beams (FRIB) at Michigan State University has brought the stars closer to Earth.
General Physics
Feb 15, 2024
0
199
Over the past few years, engineers have been trying to devise alternative hardware designs that would allow a single device to both perform computations and store data. These emerging electronics, known as computing-in-memory ...
