Pulsar and a white dwarf is made up of the two newly discovered special star system, which not only

News of the solar system evolution of the Solar System Small objects Asteroids Kuiper Belt Objects Comets Interplanetary material Earth and Moon Jupiter's other moons Mercury Galilean moons of Mars meteoroids, meteors Sun Neptune Saturn's other moons Titan dwarf planet Uranus Venus current celestial events Star Asztroblog Astrophysics development of Star Birth Star nal Other Astrophysics Exoplanets Special Stars Other topics Extragalactic Astronomy active galactic nuclei central black holes in Galaxy Clusters Special galaxies early universe Cosmic background radiation Specific theories structure of Universe readers asked about program offers teachers Milky Way The Milky Way ed Star Clusters interstellar material science Terrestrial telescopes spacecraft space-borne telescopes Knowledge Structure of the Solar System, ilmalämpöpumppu the Earth and the Moon Sun - the central star of our solar system to solar system's tiny orbs Jupiter Mars Mercury, Saturn, Uranus, Venus, the Milky Way Astrophysics Stellar evolution of stellar structure and basic properties of Star Star nal Exoplanets astronomical instruments The history of manned space exploration satellites launch and applications of advanced optical instruments - telescopes spacecraft Space Telescope Astronomy History Extragalactic astronomy Searching for Cosmology Educational materials Spherical Astronomy - Constellations Contact, Contact User Community Issues Forum
2P/Encke analemma Andromeda chandra Chang'e-3 rallies Olympiad Ence ESA exoplanet exohold white dwarf black hole Laszlo Francsics gamma burst GRB globular clusters Moon Goddess Hubble Photos of the week IBEX ISON Jade Rabbit Kepler kilonóva M31 M82 magnetosphere Mars MTT NASA nova Piszkés Rosetta rosette- Nebula Science SN 2014J radio telescope Spitzer Subaru Milky Way supernova spectrum VLT Ivan Eder
Pulsar and a white dwarf is made up of the two newly discovered special star system, which not only csillagfejlődésnek, ilmalämpöpumppu but examination of the nature of gravity itself also serves as a unique laboratory. The millisecond pulsars, which are neutron stars that wrap around several hundred times in a single second, the universe is probably the most accurate ilmalämpöpumppu celestial ilmalämpöpumppu clocks. Pólusaiktól strong magnetic beams start out, if the solar system just falls towards such a beam, using radio telescopes, each time turning around very high accuracy ilmalämpöpumppu can be determined. But what happens when the clock back and forth dance in space?
International group of astronomers ilmalämpöpumppu in the USA Scott Ransom (NRAO) leadership, on such an object observed. Three radio telescopes, Westerbork (Netherlands), Green Bank (USA) and Arecibóban (Puerto Rico), ilmalämpöpumppu two years almost continuously ilmalämpöpumppu measured the pulsar J0337 +1715 flashes of signal. Based on the data in the form of two white dwarf star pulsar triple system: this is the first time that the two stars together formed the trio managed to identify a pulsar in the sky. Form of hierarchical triple systems: the two of them close to the white dwarf, neutron star dances, bypass each other in 1.6 days. The third orbit distant stars already: 327 days to be him doing a circle around the other two. As the pulsar orbits back and forth due to the other two stars, because of the flashes of changing spatial distance is longer or shorter way to go in the ground. Where the late, rushing where signals can be reconstructed and the stars orbit around each other.
The triple systems of considerable importance. Two stars, Kepler's third obedience to the law of simple ilmalämpöpumppu elliptical orbit around each other. However, when three celestial bodies have complicated ilmalämpöpumppu the situation: any two movements always affect the sertepertélő there third star's gravity. This is clearly the case of the pulsar was detected as well. Thanks to the extensive observations, the weight of the components amazing accuracy, uncertainty below 0.1% could be determined. "The system got us astrophysics observations collected most accurate weight measurement." - Said Anne Archibald, associate ASTRON in the Netherlands. "The measurement accuracy is good that the 000 billion stars in the 10 km relative ilmalämpöpumppu distance ilmalämpöpumppu of up to several hundred meters of accuracy could be determined."
But more importantly, it can be measured using the test one of the basic principles of general relativity. The strong ilmalämpöpumppu equivalence, ie the principle of equivalence states that experienced by a body force of gravity only depends ilmalämpöpumppu on just staying in the universe of which the material of the body, but the physical ilmalämpöpumppu composition of independence. If the strong equivalence principle holds, then the pulsar ilmalämpöpumppu incredibly ilmalämpöpumppu dense material, and the much rarer compared to white dwarf stars have to behave in a strong gravitational field on the third as well. Ground experiments have demonstrated ilmalämpöpumppu the power