On the birthrates of Galactic neutron stars

Abstract

In light of the recently discovered neutron star populations we discuss the various estimates for the birthrates of these populations. We revisit the question as to whether the Galactic supernova rate can account for all of the known groups of isolated neutron stars. After reviewing the rates and population estimates we find that, if the estimates are in fact accurate, the current birthrate and population estimates are not consistent with the Galactic supernova rate. We discuss possible solutions to this problem including whether or not some of the birthrates are hugely over-estimated. We also consider a possible evolutionary scenario between some of the known neutron star classes which could solve this potential birthrate problem.

accepted for publication in MNRAS, 9 pages, 3 figures

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• Magnetars: Properties, Origin and Evolution
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• The prevalence of repeating fast radio bursts
• The Fermi Large Area Telescope as a Galactic Supernovae Axionscope
• Central Compact Objects in Supernova Remnants
• Radio and X-ray observations of the intermittent pulsar J1832+0029
• Dark Matter-induced Collapse of Neutron Stars: A Possible Link Between Fast Radio Bursts and the Missing Pulsar Problem
• Magnetic field growth in young glitching pulsars with a braking index
• Magnetic Field Generation in Stars
• On Detecting Millisecond Pulsars at the Galactic Center
• Formation of Sub-millisecond Pulsars and Possibility of Detection
• The isolated neutron star candidate 2XMM J104608.7-594306
• Long-term evolution of dim isolated neutron stars
• Targeted search for young radio pulsars in the SMC: Discovery of two new pulsars
• Polarization studies of Rotating Radio Transients
• Probing the surface magnetic field structure in RX J1856.5-3754
• Gravitational Microlensing by Neutron Stars and Radio Pulsars: Event Rates, Timescale Distributions, and Mass Measurements
• Refinement of the timing-based estimator of pulsar magnetic fields
• Rotational and X-ray luminosity evolution of high-B radio pulsars
• Strong pulses detected from a rotating radio transient J1819$-$1458