Results 121 to 130 of about 862,547 (224)

Timing of Millisecond Pulsars in NGC 6752. III. On the Presence of Nonluminous Matter in the Cluster’s Core

The Astrophysical Journal
Millisecond pulsars are subject to accelerations in globular clusters (GCs) that manifest themselves in both the first and second spin period time derivatives, and can be used to explore the mass distribution of the potentials they inhabit.
A. Corongiu, A. Ridolfi, F. Abbate, M. Bailes, A. Possenti, M. Geyer, R. N. Manchester, M. Kramer, P. C. C. Freire, M. Burgay, S. Buchner, F. Camilo   +11 more
doaj   +1 more source

Investigation of Accuracy of TOA and SNR of Radio Pulsar Signals for Vehicles Navigation. [PDF]

Sensors (Basel), 2023
Kabakchiev H, Behar V, Kabakchieva D, Kisimov V, Stefanova K.   +4 more
europepmc   +1 more source

Single-pulse Morphology of PSR J1935+1616 (B1933+16) Based on Archival Data from FAST

The Astrophysical Journal
We utilized archive data from the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) to analyze the single-pulse profile morphology of PSR J1935+1616 (B1933+16).
R. W. Tian, R. S. Zhao, Marilyn Cruces, H. Liu, D. Li, P. Wang, C. H. Niu, Biping Gong, C. C. Miao, X. Zhu, H. W. Xu, W. L. Li, S. D. Wang, Z. F. Tu, Q. J. Zhi, S. J. Dang, L. H. Shang, S. Xiao   +17 more
doaj   +1 more source

On the Difference between Pulsar Radio Emission Beams from the Two Poles

The Astrophysical Journal
The long-standing assumption of symmetric radio emission beams from the two magnetic poles of pulsars is challenged by observational evidence of asymmetry and underfill. Direct testing of this symmetry remains difficult for most pulsars.
Xiancong Wu, Hongguang Wang, Hao Tong, Rui Luo, PengFei Wang, Chengbing Lyu, Hai Lei   +6 more
doaj   +1 more source

PSR J1914+2636: Quasiperiodic Nulling and Bright-pulse Emission from an Old Pulsar in the Death Valley

The Astrophysical Journal
In this paper, we report high-sensitivity single-pulse observations of PSR J1914+2636 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST).
Yi-feng Peng, Shi-jun Dang, Qing-dong Wu, Wei-Yang Wang, Yu-bing Wang, Zu-rong Zhou, Yin-wen Gong, Qi-jun Zhi, Wei Li   +8 more
doaj   +1 more source

China's 'sky eye': exploring the universe by measuring faint cosmic radio signals. [PDF]

Natl Sci Rev, 2023
Zhao W.
europepmc   +1 more source

Radio Pulsar Populations

, 2019
Astro2020 white paper (submitted to the NASA 2020 astronomy and astrophysics decadal survey)
Lorimer, D. R., Pol, N., Rajwade, K., Aggarwal, K., Agarwal, D., Strader, J., Lewandowska, N., Kaplan, D., Cohen, T., Demorest, P., Fonseca, E., Chatterjee, S.   +11 more
openaire   +2 more sources

Identifying Pulsar Candidates in Interferometric Radio Images Using Scintillation

The Astrophysical Journal
Pulsars have been primarily detected by their narrow pulses or periodicity in time domain data. Interferometric surveys for pulsars are challenging due to the trade-off between beam sensitivity and beam size and the corresponding tradeoff between survey ...
Jitendra Salal, Shriharsh P. Tendulkar, Visweshwar Ram Marthi   +2 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

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