Results 71 to 80 of about 178,608 (254)

Decoding the Nature of Coherent Radio Emission in Pulsars I: Observational Constraints

Universe
Radio observations from normal pulsars indicate that the coherent radio emission is excited by curvature radiation from charge bunches. In this review, we provide a systematic description of the various observational constraints on the radio emission ...
Dipanjan Mitra, Rahul Basu, George I. Melikizde   +2 more
doaj   +1 more source

The specifics of pulsar radio emission

Open Astronomy, 2022
A characteristic property of pulsars is pulsed periodic radio emission, which has a high stability of periods. Despite the high stability of the emission periods of pulsars, monitoring the time of arrival of pulses (timing) shows the presence of ...
Losovsky Boris Ya.
doaj   +1 more source

Selection of radio pulsar candidates using artificial neural networks

, 2010
Radio pulsar surveys are producing many more pulsar candidates than can be inspected by human experts in a practical length of time. Here we present a technique to automatically identify credible pulsar candidates from pulsar surveys using an artificial ...
A. G. Lyne, A. Noutsos, B. W. Stappers, Belokurov, Bishop, Cordes, Eatough, Faulkner, Firth, Hewish, Jenet, Keith, Kohonen, Lintott, Lorimer, M. J. Keith, M. Kramer, Manchester, N. Molkenthin, R. P. Eatough, Smits, Smits, Storrie-Lombardi, Van Leeuwen, Zhang   +24 more
core   +1 more source

Discovery of an optical bow-shock around pulsar B0740-28 [PDF]

, 2002
We report the discovery of a faint H-alpha pulsar wind nebula (PWN) powered by the radio pulsar B0740-28. The characteristic bow-shock morphology of the PWN implies a direction of motion consistent with the previously measured velocity vector for the ...
Aldcroft, Arzoumanian, B. M. Gaensler, B. W. Stappers, Bailes, Bell, Bland-Hawthorn, Blandford, Bucciantini, Chen, Cordes, D. H. Jones, Dopita, Fomalont, Gaensler, Hester, Koribalski, Kulkarni, McCulloch, Neckel, Stone, Taylor, Wilkin, Wilkin   +23 more
core   +2 more sources

The first pulsar discovered by FAST [PDF]

Science China Physics Mechanics and Astronomy, 2019
To assist with the commissioning (Jiang et al. 2019) of the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we performed a pulsar search, with the primary goal of developing and testing the pulsar data acquisition and processing pipelines ...
L. Qian, Z. Pan, Di Li, G. Hobbs, Weiwei Zhu, Pei Wang, Zhijie Liu, Y. Yue, Yan Zhu, Hongfei Liu, Dongjun Yu, Jinghai Sun, P. Jiang, Gaofeng Pan, Hui Li, H. Gan, R. Yao, Xiaoyao Xie, F. Camilo, A. Cameron, Lei Zhang, Shen Wang, Fast collaboration   +22 more
semanticscholar   +1 more source

Enhancing CHO cell recombinant protein production using a perfusion‐directed host evolution approach

Biotechnology Progress, EarlyView.
Abstract Clonally derived cell lines generated from Chinese hamster ovary (CHO) cells encounter numerous stressors when cultured in high‐intensity perfusion bioreactors leading to poor process performance. To circumvent this, the ability of CHO cells to adapt to different culture environments was exploited. Here host cells were selected in the presence
Peter Amaya, Rajesh K. Mistry, Susie Sou, Sonja Hess, Bijay Khanal, Zayla Schaeffer, Jie Zhu, Lina Chakrabarti   +7 more
wiley   +1 more source

Pulsar’s Application in Energy Systems: Review of Current Status, Challenges, and Opportunities

Energies
To accelerate progress toward the realization of advanced energy systems, this review explores the potential of pulsar technology to create a more stable, economical, and environmentally friendly energy infrastructure.
Yongxin Zhang, Yuru Wu, Yu Liu, Biao Sun, Jiahui Yang, Naga Lakshmi Thotakura, Kazi Ishrak Ahmed, Qian Liu, Chong Shen, Yilu Liu   +9 more
doaj   +1 more source

Quark Deconfinement in Rotating Neutron Stars

Universe, 2017
In this paper, we use a three flavor non-local Nambu–Jona-Lasinio (NJL) model, an improved effective model of Quantum Chromodynamics (QCD) at low energies, to investigate the existence of deconfined quarks in the cores of neutron stars.
Richard D. Mellinger, Fridolin Weber, William Spinella, Gustavo A. Contrera, Milva G. Orsaria   +4 more
doaj   +1 more source

Comparing Recent Pulsar Timing Array Results on the Nanohertz Stochastic Gravitational-wave Background

Astrophysical Journal
The Australian, Chinese, European, Indian, and North American pulsar timing array (PTA) collaborations recently reported, at varying levels, evidence for the presence of a nanohertz gravitational-wave background (GWB).
G. Agazie, J. Antoniadis, A. Anumarlapudi, A. M. Archibald, P. Arumugam, S. Arumugam, Z. Arzoumanian, J. Askew, S. Babak, M. Bagchi, M. Bailes, A. B. Nielsen, P. Baker, C. Bassa, A. Bathula, B. Bécsy, A. Berthereau, N. Bhat, L. Blecha, M. Bonetti, E. Bortolas, A. Brazier, P. R. Brook, M. Burgay, S. Burke-Spolaor, R. Burnette, R. N. Caballero, A. Cameron, R. Case, A. Chalumeau, D. Champion, S. Chanlaridis, M. Charisi, S. Chatterjee, K. Chatziioannou, B. Cheeseboro, S. Chen, Z.-C. Chen, I. Cognard, T. Cohen, W. A. Coles, J. Cordes, N. Cornish, F. Crawford, H. Cromartie, K. Crowter, M. Curyło, C. Cutler, S. Dai, S. Dandapat, D. Deb, M. DeCesar, D. DeGan, P. Demorest, H. Deng, S. Desai, G. Desvignes, L. Dey, N. Dhanda-Batra, V. Di Marco, T. Dolch, B. Drachler, C. Dwivedi, J. Ellis, M. Falxa, Y. Feng, R. Ferdman, E. Ferrara, W. Fiore, E. Fonseca, A. Franchini, G. Freedman, J. Gair, N. Garver-Daniels, P. Gentile, K. Gersbach, J. Glaser, D. Good, B. Goncharov, A. Gopakumar, E. Graikou, J. Grießmeier, L. Guillemot, K. Gültekin, Y. J. Guo, Y. Gupta, K. Grunthal, J. Hazboun, S. Hisano, G. Hobbs, S. Hourihane, H. Hu, F. Iraci, K. Islo, D. Izquierdo-Villalba, J. Jang, J. Jawor, G. Janssen, R. Jennings, A. Jessner, A. D. Johnson, M. Jones, B. C. Joshi, A. Kaiser, D. Kaplan, A. Kapur, Fazal Kareem, R. Karuppusamy, E. Keane, M. Keith, L. Kelley, M. Kerr, J. Key, D. Kharbanda, T. Kikunaga, T. C. Klein, N. Kolhe, M. Kramer, M. A. Krishnakumar, A. Kulkarni, N. Laal, K. Lackeos, M. Lam, W. Lamb, B. Larsen, T. Lazio, K. J. Lee, Y. Levin, N. Lewandowska, T. Littenberg, K. Liu, T. Liu, Y. Liu, A. Lommen, D. R. Lorimer, M. Lower, J. Luo, R. Luo, R. Lynch, A. Lyne, C.-P. Ma, Y. Maan, D. Madison, R. Main, R. Manchester, R. Mandow, M. A. Mattson, A. McEwen, J. Mckee, M. McLaughlin, N. McMann, B. W. Meyers, P. Meyers, M. Mickaliger, M. Miles, C. Mingarelli, A. Mitridate, P. Natarajan, R. Nathan, C. Ng, D. Nice, I. C. Niţu, K. Nobleson, S. Ocker, K. Olum, S. Osłowski, A. K. Paladi, A. Parthasarathy, T. Pennucci, B. Perera, D. Perrodin, A. Petiteau, P. Petrov, N. Pol, N. Porayko, A. Possenti, T. Prabu, H. Q. Leclere, H. Radovan, P. Rana, S. Ransom, P. Ray, D. Reardon, A. F. Rogers, J. Romano, C. Russell, A. Samajdar, S. Sanidas, S. Sardesai, A. Schmiedekamp, C. Schmiedekamp, K. Schmitz, L. Schult, A. Sesana, G. Shaifullah, R. Shannon, B. Shapiro-Albert, X. Siemens, J. Simon, J. Singha, M. Siwek, L. Speri, R. Spiewak, A. Srivastava, I. Stairs, B. Stappers, D. Stinebring, K. Stovall, J. P. Sun, M. Surnis, S. Susarla, A. Susobhanan, J. Swiggum, K. Takahashi, P. Tarafdar, J. Taylor, S. Taylor, G. Theureau, E. Thrane, N. Thyagarajan, C. Tiburzi, L. Toomey, J. Turner, C. Unal, M. Vallisneri, E. van der Wateren, R. van Haasteren, A. Vecchio, V. Venkatraman Krishnan, J. Verbiest, S. Vigeland, H. Wahl, S. Wang, Q. Wang, C. Witt, J. Wang, L. Wang, K. Wayt, Z. Wu, O. Young, L. Zhang, S. Zhang, X.-J. Zhu, A. Zic   +243 more
semanticscholar   +1 more source

LOFAR Discovery of a 23.5 s Radio Pulsar [PDF]

Astrophysical Journal, 2018
We present the discovery of PSR J0250+5854, a radio pulsar with a spin period of 23.5 s. This is the slowest-spinning radio pulsar known. PSR J0250+5854 was discovered by the LOFAR Tied-Array All-Sky Survey (LOTAAS), an all-northern-sky survey for ...
C. Tan, C. Bassa, S. Cooper, T. J. Dijkema, P. Esposito, J. Hessels, V. Kondratiev, M. Kramer, D. Michilli, S. Sanidas, T. Shimwell, B. Stappers, J. V. Leeuwen, I. Cognard, J. Grießmeier, A. Karastergiou, E. Keane, C. Sobey, P. W. J. B. C. F. Astrophysics, S. O. Physics, Astronomy, U. Manchester, Manchester, Uk, Astron, The Netherlands Institute for Radio Astronomy, The Netherlands., A. S. M. F. Astronomy, U. Amsterdam, Amsterdam, I. D. F. Cosmica, Milano, Italy, A. Centre, L. Institute, R. A. O. Sciences, Moscow, Russia., Max Planck Institut fur Radioastronomie, Germany, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Universit'e d'Orl'eansCNRS, France, Station de radioastronomie de Nanccay, O. Paris, Cnrsinsu, O. Astrophysics, Denys Wilkinson Building, Keble Road, Oxford, Department of Applied Physics, U. W. Cape, S. Africa, Electronics, Rhodes University, Ska Organisation, Jodrell Bank Observatory, I. C. F. R. A. R. -. C. University, Australia., C. Astronomy, S. Science   +60 more
semanticscholar   +1 more source