Results 111 to 120 of about 28,625 (211)

A Systematic Search for Redback and Black Widow Candidates Based on the 4FGL-DR3 Unassociated Sources and the Zwicky Transient Facility Data

The Astrophysical Journal
Spider pulsars represent a unique subclass of radio millisecond pulsars in binaries, and are further categorized into black widows and redbacks according to the mass of the low-mass companion.
Chunyan Lu, Liangliang Ren, Jiamao Lin, Wenjun Huang, Hewen Yang, P. H. Thomas Tam   +5 more
doaj   +1 more source

Gravitational wave astronomy of single sources with a pulsar timing array

, 2011
Abbreviated: We investigate the potential of detecting the gravitational wave from individual binary black hole systems using pulsar timing arrays (PTAs) and calculate the accuracy for determining the GW properties.
B. W. Stappers, Backer, Bell, Bell, Bertotti, Blanchet, Blanchet, Blandford, Burke-Spolaor, C. G. Bassa, Chazan, Cutler, Demorest, Deng, Detweiler, Estabrook, Finn, Fisz, Foster, G. H. Janssen, Hellings, Hemberger, Hobbs, Hughes, Jaynes, Jenet, Jenet, K. J. Lee, Kassam, Kramer, Kramer, Lee, Lorimer, M. Kramer, Manchester, N. Wex, Nan, Nicholson, Particle, R. Karuppusamy, R. Smits, Romani, Ryba, Sazhin, Scargle, Seidelmann, Sesana, Sesana, Seto, Shannon, Smits, Smits, Stairs, Standish, Takahashi, Thorne, Van Trees, Verbiest, Verbiest, Wahlquist, Wen, Yardley   +61 more
core   +1 more source

Testing Gravity with Binary Pulsars in the SKA Era

The Open Journal of Astrophysics
Binary (and trinary) radio pulsars are natural laboratories in space for understanding gravity in the strong field regime, with many unique and precise tests carried out so far, including the most precise tests of the strong equivalence principle and of ...
Vivek Venkatraman Krishnan, Lijing Shao, Vishnu Balakrishnan, Miquel Colom i Bernadich, Amodio Carleo, Adam Deller, Alessandro Corongiu, Paulo Freire, Marisa Geyer, Eva Hackmann, Huanchen Hu, Zexin Hu, Jutta Kunz, Michael Kramer, Kuo Liu, Marcus Lower, Xueli Miao, Andrea Possenti, Delphine Perrodin, Denisha Pillay, Scott Ransom, Ingrid Stairs, Benjamin Stappers, SKA Pulsar Science Working Group   +23 more
doaj   +1 more source

Gamma Ray Signal from the Pulsar Wind in the Binary Pulsar system PSR B1259-63/LS2883

, 2011
Binary pulsar systems emit potentially detectable components of gamma ray emission due to Comptonization of the optical radiation of the companion star by relativistic electrons of the pulsar wind, both before and after termination of the wind.
Abdo, Aharonian, Dmitry Khangulyan, Felix A. Aharonian, Grove, Johnston, Kawachi, Khangulyan, Marc Ribó, McCollum, Melatos, Negueruela, Okazaki, Owocki, Sergey V. Bogovalov, Tam, Tavani, Tavani, Uchiyama, Vink   +19 more
core   +1 more source

Geodetic Precession in Binary Pulsars [PDF]

Symposium - International Astronomical Union, 1987
We have calculated the probability of observing geodetic precession in the binary pulsar PSR1913+16 for several different progenitor systems. Such an observation would support the asymmetric kick hypothesis for the origin of pular velocities. The results are shown to be dependent on the assumed progenitor but not to a strong degree.
openaire   +1 more source

The Orbital Parameters of Gamma-Ray Binary PSR J2032+4127

The Astrophysical Journal
PSR J2032+4127 is the only gamma-ray binary that exhibits pulsations in gamma rays. Previous research has indicated that the pulsar and the Be star MT91 213 orbit each other in a highly eccentric orbit with an extremely long period, with the pulsar ...
Yu-Feng Luo, Shan-Shan Weng, Qing-Zhong Liu, Ming-Yu Ge, Han-Long Peng, Shi-Qi Zhou, Shi-Jie Gao, Yu-Jia Zheng, Yan Zhang   +8 more
doaj   +1 more source

The Confrontation between General Relativity and Experiment

Living Reviews in Relativity, 2014
The status of experimental tests of general relativity and of theoretical frameworks for analyzing them is reviewed and updated. Einstein’s equivalence principle (EEP) is well supported by experiments such as the Eötvös experiment, tests of local Lorentz
Clifford M. Will
doaj   +1 more source

Spindown of Pulsars Interacting with Companion Winds: The Impact of Magnetospheric Compression

The Astrophysical Journal
Pulsars in binary systems with strong companion winds can have the magnetopause separating their magnetosphere from the wind located well within their light cylinder.
Yici Zhong, Anatoly Spitkovsky, Jens F. Mahlmann, Hayk Hakobyan   +3 more
doaj   +1 more source

The Neutron Star Mass, Distance, and Inclination from Precision Timing of the Brilliant Millisecond Pulsar J0437-4715

The Astrophysical Journal Letters
The observation of neutron stars enables the otherwise impossible study of fundamental physical processes. The timing of binary radio pulsars is particularly powerful, as it enables precise characterization of their (three-dimensional) positions and ...
Daniel J. Reardon, Matthew Bailes, Ryan M. Shannon, Chris Flynn, Jacob Askew, N. D. Ramesh Bhat, Zu-Cheng Chen, Małgorzata Curyło, Yi Feng, George B. Hobbs, Agastya Kapur, Matthew Kerr, Xiaojin Liu, Richard N. Manchester, Rami Mandow, Saurav Mishra, Christopher J. Russell, Mohsen Shamohammadi, Lei Zhang, Andrew Zic   +19 more
doaj   +1 more source

Acceleration by pulsar winds in binary systems [PDF]

In the absence of accretion torques, a pulsar in a binary system will spin down due to electromagnetic dipole radiation and the spin-down power will drive a wind of relativistic electron-positron pairs.
Gaisser, T. K., Harding, Alice K.
core   +1 more source