Results 61 to 70 of about 22,313 (204)

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

Eclipsing Binary Pulsars

, 2004
The first eclipsing binary pulsar, PSR B1957+20, was discovered in 1987. Since then, 13 other eclipsing low-mass binary pulsars have been found, 12 of these are in globular clusters. In this paper we list the known eclipsing binary pulsars and their properties, with special attention to the eclipsing systems in 47 Tuc.
openaire   +2 more sources

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

Populating the Galaxy with pulsars I: stellar & binary evolution

, 2008
The computation of theoretical pulsar populations has been a major component of pulsar studies since the 1970s. However, the majority of pulsar population synthesis has only regarded isolated pulsar evolution.
Alpar, Arons, Arzoumanian, Baade, Baade, Bailes, Belczynski, Belczynski, Bell, Beloborodov, Bhattacharya, Bhattacharya, Bildsten, Bisnovatyi-Kogan, Blondin, Bonai Marinovi, Burgay, Burgay, Cameron, Champion, Chandrasekhar, Chen, Choudhuri, Choudhuri, Colpi, Contopoulos, Cumming, Dai, Davidson, Deloye, Dewey, Dewi, Dewi, Dewi, Duncan, Duquennoy, Faucher-Giguere, Faulkner, Ferrario, Freire, Freire, Freire, Friedman, Fryer, Fryer, Fryer, Fryer, Galloway, Geppert, Gold, Goldreich, Gonthier, Gonthier, Gotthelf, Gunn, Harding, Harding, Harding, Harding, Harding, Harding, Hartman, Heger, Heger, Herant, Herant, Hewish, Hibschman, Hobbs, Huang, Hurley, Hurley, Illarionov, Ivanova, Jahan-Miri, Jahan-Miri, James R. Murray, Janka, Jarrod R. Hurley, Kaaret, Kalogera, Kiel, Kim, Kitaura, Konar, Konar, Konar, Konar, Krimm, Kroupa, Kulkarni, Kundt, Kuranov, Lattimer, Lattimer, Levin, Liu, Lorimer, Lorimer, Lorimer, Lovelace, Lyne, Lyne, Lyne, Manchester, Matthew Bailes, Melatos, Melatos, Mezzacappa, Mezzacappa, Mezzacappa, Michel, Miyaji, Muslimov, Muslimov, Nice, Nice, Nomoto, Nomoto, Nomoto, O'Shaughnessy, O'Shaughnessy, Ostriker, Pacini, Paul D. Kiel, Payne, Payne, Pfahl, Pfahl, Phinney, Podsiadlowski, Podsiadlowski, Podsiadlowski, Poelarends, Portegies Zwart, Portegies Zwart, Possenti, Possenti, Press, Pringle, Rathnasree, Regimbau, Regimbau, Romani, Ruderman, Ruderman, Ruderman, Ruderman, Ruffert, Savonije, Shapiro, Shibazaki, Shklovsky, Spitkovsky, Spruit, Stollman, Story, Taam, Tauris, Tavani, Taylor, Thompson, Thompson, Thorne, Tolman, Ulrich, Urpin, Urpin, van den Heuvel, van Kerkwijk, van Paradijs, van Straten, Verbiest, Vivekanand, Wheeler, Willems, Woods, Zhang, Zhang   +178 more
core   +1 more source

Spin frequency distributions of binary millisecond pulsars [PDF]

, 2014
Rotation-powered millisecond radio pulsars have been spun up to their present spin period by a $10^8$ - $10^9$ yr long X-ray-bright phase of accretion of matter and angular momentum in a low-to-intermediate mass binary system.
Papitto, A., Rea, N., Tauris, T., Torres, D. F.   +3 more
core   +2 more sources

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

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

Millisecond Pulsars in M2: New Discoveries and a Detailed Timing Analysis

The Astrophysical Journal
Globular clusters (GCs) offer a unique environment for discovering and studying millisecond pulsars. In this paper, we present a multiepoch search and detailed timing analysis of millisecond pulsars in the GC M2, using the Five-hundred-meter Aperture ...
Baoda Li, Kuo Liu, Lin Wang, Shunyi Lan, P. C. C. Freire, Pinsong Zhao, Liyun Zhang, Zhengwei Liu, Lei Qian, Wu Jiang, Dejiang Yin, Yaowei Li, Yinfeng Dai, Yang Liu, Xiangcun Meng, Zhichen Pan   +15 more
doaj   +1 more source

Testing f(R)-Theories by Binary Pulsars

Acta Polytechnica CTU Proceedings, 2014
Using the Post-Keplerian parameters to obtain, in the Minkowskian limit we obtain constraints on f(R)-theories of gravity from the first time derivative of the orbital period of a sample of binary stars. In the approximation in which the theory is Taylor
Mariafelicia De Laurentis, Ivan De Martino   +1 more
doaj   +1 more source

The GMRT High Resolution Southern Sky Survey for Pulsars and Transients. IV. Discovery of Four New Pulsars with an FFA Search

The Astrophysical Journal, 2023
The fast Fourier transform (FFT) based periodicity search methods provide an efficient way to search for millisecond and binary pulsars but encounter significant sensitivity degradation while searching for long period and short duty cycle pulsars.
S. Singh, J. Roy, B. Bhattacharyya, U. Panda, B. W. Stappers, M. A. McLaughlin   +5 more
doaj   +1 more source