2007/03/31 by Ramandeep Gill, Jeremy Heyl · 1 citation
Medicine · Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Galaxy #Gamma-ray bursts and supernovae #Magnetar #Medicine #Neutron star #Physics #Population #Pulsar #Pulsars and Gravitational Waves Research #ROSAT #Sky #Stars #astro-ph
paper · pdf · doi:10.1111/j.1365-2966.2007.12254.x
8 pages, 3 figures, changes to reflect version accepted by Monthly Notices of the Royal Astronomical Society
arxiv created 2007/09/07 · openalex publication_date 2007/09/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Magnetars, neutron stars with ultrastrong magnetic fields (B∼ 1014−1015G), manifest their exotic nature in the form of soft gamma-ray repeaters and anomalous X-ray pulsars. This study estimates the birthrate of magnetars to be ∼0.22 per century with a Galactic population comprising ∼17 objects. A population synthesis was carried out based on the five anomalous X-ray pulsars detected in the ROSAT All Sky Survey by comparing their number to that of massive OB stars in a well-defined volume. Additionally, the group of seven X-ray dim isolated neutron stars detected in the same survey were found to have a birthrate of ∼2 per century with a Galactic population of ∼22 000 objects.