Results 31 to 40 of about 31,130 (257)

Modeling the non-recycled Fermi gamma-ray pulsar population [PDF]

open access: yes, 2013
We use Fermi Gamma-ray Space Telescope detections and upper limits on non-recycled pulsars obtained from the Large Area Telescope (LAT) to constrain how the gamma-ray luminosity L depends on the period P and the period derivative \dot{P}.
Burnett, T. H.   +5 more
core   +3 more sources

Radio Quiet Pulsars with Ultra-Strong Magnetic Fields [PDF]

open access: yes, 1998
The notable absence of radio pulsars having measured magnetic dipole surface field strengths above $B_0\sim 3\times 10^{13}$ Gauss naturally raises the question of whether this forms an upper limit to pulsar magnetization.
Alice K. Harding   +4 more
core   +2 more sources

Are radio pulsars strange stars ? [PDF]

open access: yesAstronomy & Astrophysics, 2001
A remarkably precise observational relation for pulse core component widths of radio pulsars is used to derive stringent limits on pulsar radii, strongly indicating that pulsars are strange stars rather than neutron stars. This is achieved by inclusion of general relativistic effects due to the pulsar mass on the size of the emission region needed to ...
Kapoor, R. C., Shukre, C. S.
openaire   +2 more sources

A Survey of 56 Mid-latitude EGRET Error Boxes for Radio Pulsars [PDF]

open access: yes, 2006
We have conducted a radio pulsar survey of 56 unidentified gamma-ray sources from the 3rd EGRET catalog which are at intermediate Galactic latitudes (5 deg. < |b| < 73 deg.).
Crawford, F.   +6 more
core   +2 more sources

LUMINOSITIES OF RADIO PULSARS [PDF]

open access: yesInternational Journal of Modern Physics D, 2013
Luminosity is an intrinsic property of radio pulsars related to the properties of the magnetospheric plasma and the beam geometry, and inversely proportional to the observing frequency. In traditional models, luminosity has been considered as a function of the spin parameters of pulsars.
openaire   +2 more sources

Radio pulsars in Terzan 5 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2000
We report on searches of the globular cluster Terzan 5 for low luminosity and accelerated radio pulsars using the 64-m Parkes radio telescope. One new millisecond pulsar, designated PSR J1748-2446C, was discovered, having a period of 8.44ms. Timing measurements using the 76-m Lovell radio telescope at Jodrell Bank show that it is a solitary pulsar and ...
Lyne, A G   +3 more
openaire   +2 more sources

Estimating the Evolution of Sparks in the Partially Screened Gap of Pulsars from Subpulse Drifting

open access: yesThe Astrophysical Journal, 2023
A novel scheme has been developed to show that the observed phase behavior associated with subpulse drifting from two pulsars, J1034−3224 and J1720−2933, can be used to obtain the magnetic field configuration in the partially screened gap (PSG).
Rahul Basu   +2 more
doaj   +1 more source

Galactic populations of radio and gamma-ray pulsars in the polar cap model [PDF]

open access: yes, 2001
We simulate the characteristics of the Galactic population of radio and $\gamma$-ray pulsars using Monte Carlo techniques. At birth, neutron stars are spatially distributed in the Galactic disk, with supernova-kick velocities, and randomly dispersed in ...
Alice K. Harding   +21 more
core   +2 more sources

Mode Changing in PSR B0844-35 and PSR B1758-29 with Enhanced Emission at the Profile Centers

open access: yesThe Astrophysical Journal, 2023
We have studied the single pulse emission from two pulsars, PSR B0844-35 and PSR B1758-29, over a wide frequency range of 300–750 MHz using the upgraded Giant Metrewave Radio Telescope.
Rahul Basu   +2 more
doaj   +1 more source

The origin of single radio pulsars

open access: yes, 1999
By comparing relative rates of supernovae versus formation rates of single radio pulsars, recycled pulsars, binary pulsars and X-ray binaries we put strong limits on the progenitors of radio pulsars and on the requirement of an asymmetry in the supernova.
Heuvel, Edward van den   +1 more
core   +2 more sources

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