Results 81 to 90 of about 28,625 (211)

Constraints on Natal Pulsar Kicks from Eccentric Binary Pulsars [PDF]

The Astrophysical Journal, 1999
We investigate the expected space velocities and misalignment angles of the eccentric binary pulsars for a range of possible progenitor systems and natal kick models. In particular, the effect of the orbital separation at the instant of supernova is discussed.
Hughes, A., Bailes, M.
openaire   +2 more sources

Maximum Mass Limit of Generalized MIT Compact Star: A Theoretical Study of Thin Shell Dynamics and Gravitational Lensing

Fortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract In this study, the properties, equilibrium, and stability of compact objects within the framework of teleparallel gravity with the generalized MIT bag model are investigated. By incorporating the modified field equations, the influence of the generalized bag constant on the structure and physical characteristics of quark stars and neutron ...
Sayantan Ghosh, Sneha Pradhan, Pradyumn Kumar Sahoo   +2 more
wiley   +1 more source

Pulsar magnetospheres in binary systems

The Astrophysical Journal, 1985
The criterion for stability of a tangential discontinuity interface in a magnetized, perfectly conducting inviscid plasma is investigated by deriving the dispersion equation including the effects of both gravitational and centrifugal acceleration. The results are applied to neutron star magnetospheres in X-ray binaries. The Kelvin-Helmholtz instability
A. I. Ershkovich, J. F. Dolan
openaire   +1 more source

Properties of PSR J1023+0038 Based on Kepler, TESS, and FAST

The Astrophysical Journal, 2023
The pulsar system PSR J1023+0038 is a very interesting binary with radio millisecond pulsar and low-mass X-ray binary transitions, which depend on the stellar accretion process. We have used Kepler light curves with 1 minute cadence and TESS light curves
Li-yun Zhang, Zilu Yang, Baoda Li, Tianhao Su, Prabhakar Misra, Xianming L. Han, Liu Long   +6 more
doaj   +1 more source

Radio pulsar binaries in globular clusters: their orbital eccentricities and stellar interactions

, 2009
High sensitivity searches of globular clusters (GC) for radio pulsars by improved pulsar search algorithms and sustained pulsar timing observations have so far yielded some 140 pulsars in more than two dozen GCs.
Alak Ray, Bagchi, Camilo, Fabian, Ford, Freire, Freire, Freire, Freire, Freire, Gopakumar, Heggie, Ihm, Jacoby, Manjari Bagchi, Mardling, McMillan, Podsiadlowski, Pryor, Ransom, Ray, Refsdal, Spitzer, Thorsett, Webbink   +24 more
core   +1 more source

Deep Space Network Radio Science and Ground‐Based Planetary Radar in the Next Decade

Radio Science, Volume 60, Issue 7, July 2025.
Abstract The Deep Space Network (DSN) has been a core operational element of NASA's crewed and robotic exploration of the Solar System since the early 1960s. The primary role of the DSN has been to acquire telemetry and navigation data, but over the years, its radiometric and radar capabilities have expanded to form a system for obtaining unique ...
R. S. Park, J. E. Riedel, N. Rodriguez‐Alvarez, M. Brozovic, L. A. M. Benner, P. Vergados, D. Buccino, C. S. Jacobs, L. S. Locke, S. W. Asmar, R. Castano, T. J. W. Lazio, J. Jao, C. Lee   +13 more
wiley   +1 more source

Hidden slow pulsars in binaries

The Astrophysical Journal, 1993
The recent discovery of the binary containing the slow pulsar PSR 1718-19 orbiting around a low-mass companion star adds new light on the characteristics of binary pulsars. The properties of the radio eclipses of PSR 1718-19 are the most striking observational characteristics of this system.
Marco Tavani, Leigh Brookshaw
openaire   +1 more source

Pulsars and Close Binary Systems [PDF]

Symposium - International Astronomical Union, 1971
It is first considered what must happen if pulsars (i.e. neutron stars) are formed in close binary systems (CBS), and whether the resulting orbital motion and mass transfer should be observable. As this set of alternatives seems unlikely, there follow suggestions of how one might prevent the formation of neutron stars in close binaries.
Virginia Trimble, Martin Rees
openaire   +1 more source

Probing the millisecond pulsar origin of the γ-ray excess in the Galactic centre with LISA

Astronomy & Astrophysics
The gigaelectronvolt γ-ray excess observed towards the Galactic centre remains unexplained. While dark matter annihilation has long been considered a leading explanation, an alternative scenario involving a large population of millisecond pulsars remains
Korol Valeriya, Igoshev Andrei
doaj   +1 more source

High-cadence Timing of Binary Pulsars with CHIME

The Astrophysical Journal
We performed near-daily observations of the binary pulsars PSR J0218+4232, PSR J1518+4904, and PSR J2023+2853 with the Canadian Hydrogen Intensity Mapping Experiment (CHIME).
Chia Min Tan, Emmanuel Fonseca, Kathryn Crowter, Fengqiu Adam Dong, Victoria M. Kaspi, Kiyoshi W. Masui, James W. McKee, Bradley W. Meyers, Scott M. Ransom, Ingrid H. Stairs   +9 more
doaj   +1 more source