Results 121 to 130 of about 5,319 (222)

Sudden Polarization Angle Jumps of the Repeating Fast Radio Burst FRB 20201124A

The Astrophysical Journal Letters
We report the first detection of polarization angle orthogonal jumps, a phenomenon previously only observed from radio pulsars, from a fast radio burst (FRB) source FRB 20201124A.
J. R. Niu, W. Y. Wang, J. C. Jiang, Y. Qu, D. J. Zhou, W. W. Zhu, K. J. Lee, J. L. Han, B. Zhang, D. Li, S. Cao, Z. Y. Fang, Y. Feng, Q. Y. Fu, P. Jiang, W. C. Jing, J. Li, Y. Li, R. Luo, L. Q. Meng, C. C. Miao, X. L. Miao, C. H. Niu, Y. C. Pan, B. J. Wang, F. Y. Wang, H. Z. Wang, P. Wang, Q. Wu, Z. W. Wu, H. Xu, J. W. Xu, L. Xu, M. Y. Xue, Y. P. Yang, M. Yuan, Y. L. Yue, D. Zhao, C. F. Zhang, D. D. Zhang, J. S. Zhang, S. B. Zhang, Y. K. Zhang, Y. H. Zhu   +43 more
doaj   +1 more source

A survey for radio pulsars and transients in the 10 pc region around Sgr A*

Astronomy & Astrophysics
Here we report on a new survey for pulsars and transients in the 10 pc region around Sgr A∗ using the Effelsberg radio telescope at frequencies between 4 and 8 GHz.
Desvignes G., Eatough R. P., Men Y. P., Abbate F., Karuppusamy R., Kramer M., Liu K., Shao L., Torne P., Wharton R. S.   +9 more
doaj   +1 more source

Radio pulsar death

, 2002
Pulsar radio emission is believed to be originated from the electron-positron pairs streaming out from the polar cap region. Pair formation, an essential condition for pulsar radio emission, is believed to be sustained in active pulsars via one photon process from either the curvature radiation (CR) or the inverse Compton scattering (ICS) seed photons,
openaire   +2 more sources

Neutron star mass estimates from gamma-ray eclipses in spider millisecond pulsar binaries. [PDF]

Nat Astron, 2023
Clark CJ, Kerr M, Barr ED, Bhattacharyya B, Breton RP, Bruel P, Camilo F, Chen W, Cognard I, Cromartie HT, Deneva J, Dhillon VS, Guillemot L, Kennedy MR, Kramer M, Lyne AG, Sánchez DM, Nieder L, Phillips C, Ransom SM, Ray PS, Roberts MSE, Roy J, Smith DA, Spiewak R, Stappers BW, Tabassum S, Theureau G, Voisin G.   +28 more
europepmc   +1 more source

Recycled pulsars discovered at high radio frequency

, 2001
We present the timing parameters of nine pulsars discovered in a survey of intermediate Galactic latitudes at 1400 MHz with the Parkes radio telescope. Eight of these pulsars possess small pulse periods and period derivatives thought to be indicative of '
Matthew Bailes (18925756), R. T. Edwards (7631291)   +1 more
core   +1 more source

Follow-up Investigation of 11 Pulsars Discovered in the Commensal Radio Astronomy FAST Survey

The Astrophysical Journal
In this paper, we study 11 pulsars that were discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in the Commensal Radio Astronomy FAST Survey.
K. Yang, L. Li, J. P. Yuan, N. Wang, D. Li, P. Wang, C. C. Miao, W. W. Zhu, M. Y. Xue, W. M. Yan, J. B. Wang, R. Yuen, G. L. Lü, C. H. Zhu, J. M. Yao, Q. D. Wu, S. Q. Wang, S. N. Sun, F. F. Kou, D. Zhao, Z. Wang, J. Xu, C. Sun, Y. Feng, Z. J. Liu, X. L. Miao, L. Q. Meng, C. H. Niu, J. R. Niu, L. Qian, X. Y. Xie, Y. F. Xiao, Y. L. Yue, S. P. You, S. J. Dang, X. H. Yu, R. S. Zhao, X. Zhou, L. Zhang, J. F. Wu, C. J. Wang, Y. B. Wang, Z. Y. Gan   +42 more
doaj   +1 more source

AI-powered drone-based automated inspection of FAST. [PDF]

Light Sci Appl, 2023
Wang L.
europepmc   +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

Astrophysical Implications of the QCD phase transition

, 2012
The possible role of a first order QCD phase transition at nonvanishing quark chemical potential and temperature for cold neutron stars and for supernovae is delineated. For cold neutron stars, we use the NJL model with nonvanishing color superconducting
Sagert, Irina, Liebendörfer, Matthias, Thielemann, Friedrich-Karl, Hempel, Matthias, Fischer, Tobias, Mezzacappa, Anthony, Schaffner-Bielich, Jürgen, Pagliara, Giuseppe   +7 more
core  

White Noises on Different Stokes Components of Six Millisecond Pulsars

The Astrophysical Journal
We presented measurements of jitter noise and radiometer noise for the Stokes parameters I , L , and V in six millisecond pulsars from the International Pulsar Timing Array sample, based on FAST observations.
S. N. Sun, N. Wang, W. M. Yan
doaj   +1 more source