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Cassiopeia A, Neutron Star Superfluid
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Titel: Cassiopeia A, Neutron Star Superfluid
Untertitel: Siehe automatische Übersetzung
This composite image shows a beautiful X-ray and optical view of Cassiopeia A (Cas A), a supernova remnant located in our Galaxy about 11,000 light years away. These are the remains of a massive star that exploded about 330 years ago, as measured in Earth's time frame. X-rays from Chandra are shown in red, green and blue along with optical data from Hubble in gold. At the center of the image is a neutron star, an ultra-dense star created by the supernova. Ten years of observations with Chandra have revealed a 4% decline in the temperature of this neutron star, an unexpectedly rapid cooling. Cassiopeia A (Cas A) is a supernova remnant located in our Galaxy about 11,000 light years away in the constellation Cassiopeia. These are the remains of a massive star that exploded about 330 years ago, as measured in Earth's time frame. It is the brightest extrasolar radio source in the sky at frequencies above 1 GHz. At the center of the image is a neutron star, an ultra-dense star created by the supernova. Ten years of observations with Chandra have revealed a 4% decline in the temperature of this neutron star, an unexpectedly rapid cooling. This cooling is likely caused by a neutron superfluid forming in its central regions, the first direct evidence for this bizarre state of matter in the core of a neutron star. Release date February 23, 2011.
This composite image shows a beautiful X-ray and optical view of Cassiopeia A (Cas A), a supernova remnant located in our Galaxy about 11,000 light years away. These are the remains of a massive star that exploded about 330 years ago, as measured in Earth's time frame. X-rays from Chandra are shown in red, green and blue along with optical data from Hubble in gold. At the center of the image is a neutron star, an ultra-dense star created by the supernova. Ten years of observations with Chandra have revealed a 4% decline in the temperature of this neutron star, an unexpectedly rapid cooling. Cassiopeia A (Cas A) is a supernova remnant located in our Galaxy about 11,000 light years away in the constellation Cassiopeia. These are the remains of a massive star that exploded about 330 years ago, as measured in Earth's time frame. It is the brightest extrasolar radio source in the sky at frequencies above 1 GHz. At the center of the image is a neutron star, an ultra-dense star created by the supernova. Ten years of observations with Chandra have revealed a 4% decline in the temperature of this neutron star, an unexpectedly rapid cooling. This cooling is likely caused by a neutron superfluid forming in its central regions, the first direct evidence for this bizarre state of matter in the core of a neutron star. Release date February 23, 2011.
Bildnachweis: Album / NASA/CXC/M.Weiss/UNAM/STScI / Science Source
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Bildgröße: 4200 × 2851 px | 34.3 MB
Druckgröße: 35.6 × 24.1 cm | 1653.5 × 1122.4 in (300 dpi)
Schlüsselwörter: 21. JAHRHUNDERT • ASTRONOMIE • DIAGRAMM • EXPLOSION • HIMMEL (NATUR) • HIMMEL • ILLUSTRATION • ILLUSTRATIONS • KUENSTLER • KÜNSTLER • RADIO • WELTRAUM • WISSENSCH.: ASTRONOMIE
