Pulsar and companion star, illustration

Numéro d’image : 12970840
Pulsar and companion star, illustration
Pulsar and companion star, illustration. In this binary system, material from the companion star (left) is being pulled across to form an accretion disc around the pulsar (right). Pulsars are a form of neutron star, stellar cores compressed to nuclear densities. Pulsars rotate rapidly and cast out narrow beams of energy (shown here) as they rotate. The beams are confined by extremely strong magnetic fields. The rotation periods range from a few seconds to hundredths of a second. Here, the influx of material from the companion star can eventually spin up the pulsar to the millisecond range, rotating hundreds of times per second. Gravitational waves are thought to limit the rotation speed of these millisecond pulsars, preventing them from disintegrating.
Licence : Droits gérés
Crédit: Science Photo Library / Dana Berry / NASA
Taille de l’image : 3750 px × 2531 px
Model Release : Non requis
Property Release : Non requis
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