Results 21 to 30 of about 15,813 (253)

THE DISTURBANCE OF A MILLISECOND PULSAR MAGNETOSPHERE [PDF]

The Astrophysical Journal Letters, 2016
ABSTRACT Pulsar timing has enabled some of the strongest tests of fundamental physics. Central to the technique is the assumption that the detected radio pulses can be used to accurately measure the rotation of the pulsar. Here, we report on a broadband variation in the pulse profile of the millisecond pulsar J1643−1224.
Matthew Kerr, N. D. R. Bhat, Renée Spiewak, Michael Keith, Ryan Shannon, Ryan Shannon, Richard N. Manchester, W. van Straten, J. B. Wang, Shi Dai, L. Toomey, Stefan Oslowski, X. P. You, Pablo Rosado, George Hobbs, Paul D. Lasky, William A. Coles, Yuri Levin, Xing-Jiang Zhu, Matthew Bailes, Vikram Ravi, James Dempsey, Lindley Lentati, Linqing Wen, Daniel J. Reardon, Daniel J. Reardon   +25 more
openaire   +7 more sources

Structure and stability of differentially rotating compact stellar objects

Astronomische Nachrichten, Volume 344, Issue 1-2, January-February 2023., 2023
Abstract Depending on the dynamics of a binary neutron star merger, the collision may result in a differentially rotating compact object. Differentially rotating stars can sustain a total mass considerably higher than that of a uniformly rotating star, giving rise to “hypermassive” objects like hypermassive neutron stars.
Delaney Farrell, Rodrigo Negreiros, Fridolin Weber   +2 more
wiley   +1 more source

A LOFAR census of millisecond pulsars [PDF]

Astronomy & Astrophysics, 2016
27 pages, 10 figures, 5 tables, accepted to A& ...
Patrick Weltevrede, Stephane Corbel, Stephane Corbel, Michael Kramer, Michael Kramer, Anna V. Bilous, Sera Markoff, Aris Karastergiou, Aris Karastergiou, S. ter Veen, Rene P. Breton, Charlotte Sobey, Rudy Wijnands, A. Noutsos, Simon Cooper, A. Alexov, V. I. Kondratiev, V. I. Kondratiev, Antonia Rowlinson, John D. Swinbank, Ralph A. M. J. Wijers, J. W. Broderick, J. van Leeuwen, J. van Leeuwen, Evan Keane, Evan Keane, Stefan Oslowski, Stefan Oslowski, Heino Falcke, Heino Falcke, Joris P. W. Verbiest, Joris P. W. Verbiest, Martin Bell, Martin Bell, T. E. Hassall, Jason W. T. Hessels, Jason W. T. Hessels, Jean-Mattias Grießmeier, Jean-Mattias Grießmeier, P. Zarka, P. Zarka, M. Pilia, M. Kuniyoshi, B. W. Stappers, Jochen Eislöffel   +44 more
openaire   +11 more sources

Progress and Challenges in Electromechanical Coupling of Radio Telescopes

International Journal of Antennas and Propagation, Volume 2022, Issue 1, 2022., 2022
Radio astronomy is a discipline of dynamics and wonders. The vast universe has many secrets to unravel. As one of the important facilities in this discipline, radio telescopes play a key role in collecting astronomical data and unraveling mysteries.
Yuefei Yan, Song Xue, Xinlan Hu, Peiyuan Lian, Qian Xu, Na Wang, Wulin Zhao, Yang Wu, Baoyan Duan, Congsi Wang, Mohammad Alibakhshikenari   +10 more
wiley   +1 more source

Transitional Millisecond Pulsars

, 2021
Millisecond pulsars in tight binaries have recently opened new challenges in our understanding of physical processes governing the evolution of binaries and the interaction between astrophysical plasma and electromagnetic fields. Transitional systems that showed changes from rotation-powered to accretion powered states and vice versa have bridged the ...
PAPITTO, ALESSANDRO, DE MARTINO, Domitilla   +1 more
openaire   +3 more sources

Binary and Millisecond Pulsars [PDF]

Annual Review of Astronomy and Astrophysics, 1994
Most of the ~600 known pulsars are single and located in the disk of our Galaxy. There is circumstantial evidence that the pulsars in this majority are created in supernova (SN) explosions, by the collapse of the cores of massive stars (initial mass M_i ≳ M_(cr) ≃ 8 M_⊙). One is created roughly every 100 y in the Galaxy.
Phinney, E. S., Kulkarni, S. R.
openaire   +3 more sources

Electrotherapies for Glioblastoma

Advanced Science, Volume 8, Issue 18, September 22, 2021., 2021
Electrotherapy uses electric fields to target various biological mechanisms for therapeutic outcomes. The current state of intermediate frequency electric fields including tumour‐treating fields, and reversible/irreversible electroporation are discussed in both pre‐clinical and clinical models of glioblastoma.
Elise P. W. Jenkins, Alina Finch, Magda Gerigk, Iasonas F. Triantis, Colin Watts, George G. Malliaras   +5 more
wiley   +1 more source

Design and evaluation of a scalable Internet of Things backend for smart ports

Software: Practice and Experience, Volume 51, Issue 7, Page 1557-1579, July 2021., 2021
Abstract Internet of Things (IoT) technologies, when adequately integrated, cater for logistics optimisation and operations' environmental impact monitoring, both key aspects for today's EU ports management. This article presents Obelisk, a scalable and multi‐tenant cloud‐based IoT integration platform used in the EU H2020 PortForward project.
Vincent Bracke, Merlijn Sebrechts, Bart Moons, Jeroen Hoebeke, Filip De Turck, Bruno Volckaert   +5 more
wiley   +1 more source

Radio Millisecond Pulsars

, 2021
Preprint of a chapter of the book 'Millisecond Pulsars', of the Astrophysics and Space Science Library (ASSL) series edited by Sudip Bhattacharyya, Alessandro Papitto and Dipankar Bhattacharya; 33 pages, 14 Figures, 3 ...
Bhattacharyya, Bhaswati, Roy, Jayanta
openaire   +2 more sources

An ultraluminous nascent millisecond pulsar [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2015
Abstract If the ultraluminous source (ULX) M82 X-2 sustains its measured spin-up value of $\dot{\nu }= 10^{-10}\,{\rm s^{-2}}$, it will become a millisecond pulsar in less than 105 yr. The observed (isotropic) luminosity of 1040 erg s−1 also supports the notion that the neutron star will spin up to a millisecond period upon accreting ...
J. P. Lasota, J. P. Lasota, Włodek Kluźniak   +2 more
openaire   +3 more sources