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Latest Star types Stories

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.

Bursts Of Cosmic Radio Waves May Be From The Beginning Of The Universe
2013-07-05 05:13:51

Astronomers writing in the journal Science say they recently discovered mysterious bursts of radio waves originating from billions of light-years away.

Astronomers May Have Witnessed A Collapsing Neutron Star
2013-07-05 04:16:37

Radio observatories have recently noticed bursts of radio light emerging in the night sky. The intense flashes exist for only a moment then disappear and do not seem to repeat.

Red Dwarf Stars May Destroy Possibility Of Life In Their Systems
2013-07-01 18:43:05

About 75 percent of the main sequence stars in our galaxy are classified as red dwarf stars and they represent an exciting population to study in the search for life beyond Earth.

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.

Pulsating White Dwarf Discovered By UT Astronomers
2013-06-20 12:47:40

A group of astronomers have discovered pulsations from the crystallized remnant of a burnt-out white dwarf star.

Evidence Of New Phase In Neutron Stars Discovered
2013-06-14 13:48:03

Scientists say they have detected what may be the first observational evidence of existence of a new exotic phase of matter in what is known as the "inner crust" of neutron stars, or pulsars.

Nearby Flare Star Gives Burst Of Light
2013-06-14 12:17:36

Within a span of three minutes, a star in the Usra Major constellation less than 16 light-years from Earth gave off a massive flare, making the object 15 times brighter than normal, according to a new report in the journal Astrophysics.

Astronomers Use The Very Long Baseline Array To Set New Record
2013-06-13 14:46:36

An international team of scientists led by astronomer Adam Deller (ASTRON) have used the Very Long Baseline Array (VLBA) to set a new distance accuracy record, pegging a pulsar called PSR J2222-0137 at 871.4 light-years from Earth.


Latest Star types Reference Libraries

7_d6897d09acee1dd0c34d0fbf62ff7d0b2
2004-10-19 04:45:44

X-Ray Astronomy -- Although the more energetic X-rays (E > 30 keV) can penetrate the air at least for distances of a few meters (they would never have been detected and medical X-ray machines would not work if this was not the case) the Earth's atmosphere is thick enough that virtually none are able to penetrate from outer space all the way to the Earth's surface. X-rays in the 0.5 - 5 keV range, where most celestial sources give off the bulk of their energy, can be stopped by a few...

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...

6_f90ed86f2fe38a60d6f89c02ad7d21082
2004-10-19 04:45:43

X-ray Pulsar -- This dramatic artist's vision shows a city-sized neutron star centered in a disk of hot plasma drawn from its enfeebled red companion star. Ravenously accreting material from the disk, the neutron star spins faster and faster emitting powerful particle beams and pulses of X-rays as it rotates 400 times a second. Could such a bizarre and inhospitable star system really exist in our Universe? Based on data from the orbiting Rossi X-Ray Timing Explorer (RXTE) satellite,...

6_1446abbc556d86191d7944d6c5cf68052
2004-10-19 04:45:43

X-ray Burster -- X-ray bursters are a class of binary stars which are luminous in X-rays. They contain a neutron star and a low-mass companion star. The companion fills its Roche lobe and therefore the neutron star is accreting matter from it. The inflowing gas forms an accretion disk around the neutron star. Sometimes X-ray bursters show a sudden increase in their X-ray luminosity, called X-ray burst. All properties of the X-ray bursts can be explained assuming that they result from...

6_48ed76f36ff2f4ed0ad83a22964029652
2004-10-19 04:45:43

X-ray Binaries -- X-ray binaries are a class of binary stars that are very luminous in X-rays. The X-rays are produced by matter falling from one component (usually a relatively normal star) to the other component, which is a neutron star or a black hole. The infalling matter releases gravitational potential energy, up to several tens of per cent of its rest mass as X-rays. (Hydrogen fusion releases about 0.7 per cent of rest mass) X-ray binaries are further subdivided into...

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Word of the Day
pawl
  • A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.
The word 'pawl' probably comes from a Latin word meaning 'stake'.
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