Gamma-ray binary, illustration

Numéro d’image : 12645331
Gamma-ray binary, illustration
Gamma-ray binary. Illustration showing a binary system consisting of a rapidly spinning neutron star (a pulsar) named PSR J1023 (left) and a star (right) containing about one-fifth the mass of the Sun, orbiting each other closely. The system, known as AY Sextantis, is located about 4, 400 light-years away in the constellation Sextans. Observations have shown this pulsar's radio beacon vanishes periodically while at the same time the system brightens fivefold in gamma rays. It is thought this behaviour is a result of a stream of material from the Sun-like star periodically forming an accretion disc around the pulsar. Radio signals are obscured and x-rays emitted, and polar jets (top and bottom) form from the accretion disk, generating gamma-ray bursts. The stars complete an orbit in only 4.8 hours, which places them so close together that the pulsar will gradually evaporate its companion.
Licence : Droits gérés
Crédit: Science Photo Library / NASA's Goddard Space Flight Center
Taille de l’image : 4320 px × 2430 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

Prix pour cette image À partir de 45 €

Produit vendu
(Calendrier, Carte postale, Carte de vœux, Impression sur textile, Packaging etc)
À partir de 45 €
Usage commercial
(Affichage, Annonce presse, Annonce TV, Carte, Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 45 €
Éditorial
(Digital, Journal, Livre, Livre pratique, Magazine, Télévision etc)
À partir de 60 €
Usage non-commercial
(Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 120 €

Mots clés

;