Dependence of pulsar death line on the equation of state

Abstract

Pulsar death line can be defined in $P-\dot{P}$ diagram. Traditionally, radio-loud pulsars are supposed to locate above the death line where is the radio-loud region. With the development of observational equipment, the observational properties of the neutron star are remarkably diverse. In $P-\dot{P}$ diagram, some of the special sources are radio-quiet but lie above the death line. From the definition of the pulsar death line, different equation of states for neutron star or strange star results in different death lines. We discuss the influence of the equation of state on the pulsar death line and the possible link between different neutron star groups. The results show that central compact objects would be the small mass of self-bound strange stars, and rotating radio transients might be old pulsars on the verge of death. We suggest that PSR J2144-3933 is likely to be a large mass pulsar, which would be larger than $2.0{\mathrm{M}}_{\odot }$. Multiple observational facts would help us to reveal the nature of pulsars.

7 pages, 5 figures, accepted for publication in MNRAS

References in corpus (15)

• Shapiro delay measurement of a two solar mass neutron star
• The ATNF Pulsar Catalogue
• The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project
• A periodically active pulsar giving insight into magnetospheric physics
• A Debris Disk Around An Isolated Young Neutron Star
• The Magnificent Seven: Magnetic fields and surface temperature distributions
• Discovery of a 112 ms X-ray Pulsar in Puppis A: Further Evidence of Neutron Stars Weakly Magnetized at Birth
• Radio and X-ray observations of the intermittent pulsar J1832+0029
• Constraining the Spin-down of the Nearby Isolated Neutron Star RX J2143.0+0654
• Rotational evolution of the Crab pulsar in the wind braking model
• 1E 1207.4-5209: a low-mass bare strange star?
• A dedicated Chandra ACIS observation of the central compact object in the Cassiopeia A supernova remnant
• A Mid-Infrared Counterpart to the Magnetar 1E 2259+586
• An Ultra Low Mass and Small Radius Compact Object in 4U 1746-37?
• Long-term evolution of dim isolated neutron stars

Cited by in corpus (8)

• The Dipole Magnetic Field and Spin-down Evolutions of The High Braking Index Pulsar PSR J1640-4631
• Millisecond Pulsars and Black Holes in Globular Clusters
• Dark Matter Heating vs. Rotochemical Heating in Old Neutron Stars
• Formation and Evolution of Binary Neutron Stars: Mergers and Their Host Galaxies
• The Galactic population and properties of young, highly-energetic pulsars
• A Single spark model for PSR J2144$-$3933
• Rotational Evolution of The Slowest Radio Pulsar PSR J0250+5854
• Ultraslow PSR J0901-4046 with an ultrahigh magnetic field of $3.2\times 10^{16}$ G