Tag

Gravastars

All articles tagged with #gravastars

science1 year ago•4 min saved

"Could Gravastars Replace Black Holes?"

The article explores the concept of gravastars as an alternative to black holes, suggesting that these objects could explain certain cosmic phenomena without the paradoxes associated with black holes. Gravastars, proposed in 2002, are theorized to form when a collapsing star's matter transforms into a new state, preventing the formation of a singularity. While intriguing, gravastars must still account for observed properties of black holes, and distinguishing between the two remains challenging.

via IFLScience|

#astronomy #black-holes #general-relativity

science1 year ago•4 min saved

"New Research Challenges the Existence of Black Hole Singularities"

New research suggests that black holes might actually be gravastars, hypothetical objects made of dark energy that do not have singularities. This alternative model could resolve the paradoxes associated with black holes, as gravastars exhibit similar observational properties without the theoretical issues of infinite density. Future experiments with advanced telescopes may help distinguish between these two cosmic entities.

via Space.com|

#astronomy #black-holes #dark-energy

physics1 year ago•5 min saved

"Russian Doll Gravastars: Nested Phenomena in Physics"

Physicists have calculated that nested gravastars, hypothetical alternatives to black holes, could exist and resemble a Russian Matryoshka doll. These exotic objects, if they exist, could emit gravitational-wave signals and have distinctive ringdown signals when formed from compact binary systems. However, the existence of gravastars remains hypothetical with no observational evidence, and their formation process is still unknown. Nonetheless, they could potentially be detected through gravitational-wave observations or by accreting matter onto their surface, although a physical model for their existence in reality remains elusive.

via physicsworld.com|

#black-holes #general-theory-of-relativity #gravastars

science1 year ago•5 min saved

"Nested Gravitational Stars: Unraveling the Mystery of Russian Doll-Like Gravastars"

A new solution to Einstein's general relativity equations suggests the existence of hypothetical stars called "nestars," which could be made from stacked gravitational stars, or "gravastars," similar to Russian matryoshka dolls. Gravastars are compact bodies with dark energy cores, theorized as an alternative to black holes, and the new solution allows for a series of nested gravastars. While the existence of nestars is still uncertain, this research provides valuable insights into understanding black holes and exploring new solutions within the framework of general relativity.

via Livescience.com|

#astrophysics #einstein #general-relativity

astronomy1 year ago•5 min saved

"Nested Gravitational Stars: Exploring the Revolutionary Gravastar Model"

A new theoretical solution to general relativity suggests that compact bodies called "gravastars" could be stacked to create "nestars," similar to Russian matryoshka dolls. Gravastars are hypothetical stars with dark energy cores that could protect against their own gravitational forces. Unlike black holes, gravastars do not have event horizons or singularities. While the existence of nestars is still uncertain, exploring these mathematical solutions helps to better understand black holes and offers new avenues for theoretical physics.

via Space.com|

#astronomy #black-holes #general-relativity

science1 year ago•3 min saved

"Gravastars: A Matryoshka Doll Theory for Stellar Structures"

Physicists at Goethe University Frankfurt have proposed a new theoretical solution to the field equations of general relativity, describing the existence of a gravastar inside another gravastar, which they have named "nestar." This hypothetical celestial object resembles a matryoshka doll and is made up of nested gravastars. Unlike black holes, gravastars do not have an event horizon or a singularity at their core, and their surface is represented by a wafer-thin skin of ordinary matter. While the creation of nestars remains unknown, exploring the mathematical properties of these solutions contributes to a better understanding of black holes.

via Phys.org|

#general-relativity #goethe-university-frankfurt #gravastars