Archiv: neutron stars / Neutronensterne (space objects)


25.10.2021 - 18:59 [ National Aeronautics and Space Administration ]

Studying the Edge of the Sun’s Magnetic Bubble

(Oct 19, 2021)

The space radiation that comes at us from other stars is called galactic cosmic radiation (GCR). Active areas in the galaxy – like supernovae, black holes, and neutron stars – can strip the electrons from atoms and accelerate the nuclei to almost the speed of light, producing GCR.

On Earth, we have three layers of protection from space radiation. The first is the heliosphere, which helps block GCR from reaching the major planets in the solar system. Additionally, Earth’s magnetic field produces a shield called the magnetosphere, which keeps GCR out away from Earth and low-orbiting satellites like the International Space Station. Finally, the gases of Earth’s atmosphere absorb radiation.

29.06.2021 - 21:31 [ BBC ]

Rare black hole and neutron star collisions sighted twice in 10 days

When objects as massive as these collide they create ripples in the fabric of space called gravitational waves. And it is these ripples that the researchers have detected.

17.04.2021 - 04:46 [ CNN ]

Giant radio pulses and X-ray surges are coming from the Crab Nebula

The light from this supernova first reached Earth in July 1054 and was witnessed by astronomers in Japan and China.

When the star exploded, it formed a neutron star, which is the dense core of a star that is about the size of a city like Chicago. This became a pulsar, or rapidly spinning neutron star, that is now located in the nebula.

08.01.2020 - 02:24 [ CNN ]

Astronomers detect gravitational waves created by massive neutron star collision

Neutron stars are the smallest in the universe, the remnants of supernovae. Their diameters are comparable to the size of a city like Chicago or Atlanta, but they are incredibly dense, with masses bigger than that of our sun. So think of the sun, compressed into a major city — and then think of two of them violently crashing into each other.