PSR J2339-0533
PSR J2339–0533 is a pulsar in the dual system J2339–0533 . The pulsar forms a redback with its companion and they circle around their common center of gravity in about 4.6 hours. The mass of the pulsar is 1.4 solar masses . In 2015, the pulsar was discovered to change shape over a period of approximately 2.5 years. So it is round at the beginning of the cycle and then becomes oval.
Individual evidence
- ↑ Holger J. Pletsch , Colin J. Clark: Gamma-ray Timing of Redback PSR J2339-0533: Hints for Gravitational Quadrupole Moment Changes . 2015, arxiv : 1504.07466 (English).
- ^ Ray, Paul S .; Belfiore, AM; Saz Parkinson, P .; Polisensky, E .; Ransomware, SM; Romani, RW; Hessels, J .; Razzano, M .; Bhattacharyya, B .; Roy, J .; Cognard, I .: Discovery of the radio and gamma-ray pulsar PSR J2339-0533 associated with the Fermi LAT bright source 0FGL J2339.8-0530 . 2014, bibcode : 2014AAS ... 22314007R (English).
- ^ Roger W. Romani, Michael S. Shaw: THE ORBIT AND COMPANION OF PROBABLE γ-RAY PULSAR J2339−0533. (PDF) (No longer available online.) 2011, formerly in the original ; accessed on August 5, 2015 (English, doi: 10.1088 / 2041-8205 / 743/2 / L26 ). ( Page no longer available , search in web archives )
- ↑ Lars Fischer: Pulsar reveals magnetic oscillations of the companion star. A star pulsates like our sun - we owe that we know that to the pulsar right next door. (No longer available online.) In: Spektrum.de. June 29, 2015, formerly in the original ; Retrieved August 5, 2015 . ( Page no longer available , search in web archives )