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Latest Stellar evolution Stories

Why Do Quenched Galaxies Seem To Keep Growing?
2013-08-02 04:02:20

Thanks to new data obtained from the Hubble Cosmological Evolution Survey, researchers have solved the mystery as to why some galaxies appear to grow larger even after they no longer form new stars.

Life Of Eskimo Nebula Coming To A Beautiful End
2013-07-13 08:19:42

At the end of their lives, stars like our Sun become remarkably photogenic. For example, NGC 2392, located approximately 4,200 light years from Earth, is giving astronomers a beautiful display as it nears the end of its existence.

Monstrous Stellar Collisions Not Expected To Occur Anytime Soon
2013-07-11 14:32:31

Astrophysicists from the Astronomical Observatory of the Faculty of Physics at the University of Warsaw say the next collision of monstrous stars will not occur until billions of years from now.

Nature's Constants Not Constant
2013-07-05 08:29:31

Researchers recently studied a distant white dwarf star to measure the strength of the electromagnetic force, one of the four fundamental forces that shape the universe as we know it. They hoped to determine whether the laws of physics were constant throughout the universe.

Stellar Collision Survivor New Type Pulsating Star
2013-06-28 14:54:18

Astronomers have discovered that the brightness of the remnant of a stellar collision can vary in a way that scientists have not observed before.

Computer Simulations Shed New Light On Neutron Star Formation
2013-06-28 04:30:08

Researchers from the Max Planck Institute for Astrophysics have, for the first time, created three-dimensional computer models in order to study the formation of neutron stars at the center of collapsing stars, officials from the German research center announced earlier this week.

Spiral Galaxies Larger Than Thought
2013-06-27 13:50:10

Astronomers now say spiral galaxies like the Milky Way galaxy are actually larger than previously thought.

Chandra Discovers Supernova Remnant Emission Is Synchrotron Radiation
2013-06-26 16:32:40

Astronomers will be reporting details about a supernova remnant known as G1.9+0.3 in the upcoming issue of The Astrophysical Journal Letters.

Supernova Gold Standard For Normal
2013-06-19 13:37:32

A group of astronomers has released a dataset based on 32 nights of repeated observations of supernova 2011fe, creating a "gold-standard" atlas for Type 1a supernovae.

Supernova Light Echo Detected
2013-06-05 13:28:46

Astronomers discovered light echoing off of material surrounding a recent supernova explosion, supporting the theory that exploding white dwarfs become unstable from matter donated by large non-degenerate stars.


Latest Stellar evolution Reference Libraries

Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

7_4b235c0bfbfc8504a41844f9c48ad8962
2004-10-19 04:45:43

Hertzsprung-Russell Diagram -- In stellar astronomy, the Hertzsprung-Russell diagram (H-R diagram) shows the relation between the absolute magnitude and the spectral types of stars. It was invented around 1910 by Ejnar Hertzsprung and Henry Norris Russell. There are two equivalent forms. One is the observer's form which plots the color of the star on one axis and the absolute magnitude on the other axis. The theoretician's form plots the temperature of the star on one axis and the...

White Dwarf
2004-10-19 04:45:43

White Dwarf -- A white dwarf is a a star supported by electron degeneracy. A star like our Sun will become a white dwarf when it has exhausted its nuclear fuel. Near the end of its nuclear burning stage, such a star goes through a red giant phase and then expels most of its outer material (creating a planetary nebula) until only the hot (T > 100,000 K) core remains, which then settles down to become a young white dwarf. A typical white dwarf is half as massive as the Sun, yet only...

6_19859ff34fd03d00777232e2520ce83f5
2004-10-19 04:45:42

Supernova Remnant -- A supernova remnant (SNR) is made up of the materials left behind by the gigantic explosion of a star in a supernova. There are two possible routes to this end: either a massive star may cease to generate fusion energy in its core, and collapse inward under the force of its own gravity, or a white dwarf star may accumulate material from a companion star until it reaches a critical mass and undergoes a similar collapse. In either case, the resulting supernova...

Supernova
2004-10-19 04:45:42

Supernova -- A supernova is a star that increases its brightness drastically within a matter of days, making it appear as if a "new" star was born (hence "nova"). The "super" prefix distinguishes it from a mere nova, which also involves a star increasing in brightness, though to a lesser extent and through a much different mechanism. Astronomers have classified supernovae in several classes, according to the lines of different elements that appear in their spectra. The first element...

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Word of the Day
orbity
  • A bereavement by loss of parents or children; the state of being orbate; orbation.
The word 'orbity' ultimately comes from a Latin word meaning 'bereaved'.