Results 101 to 110 of about 18,264 (187)

Timing Analysis of Bright Pulsars with Nine Years of DAMPE Data

Particles
Based on nine years of flight data from the DArk Matter Particle Explorer (DAMPE) and a novel gamma-ray selection algorithm developed in previous work, we recalculate the instrument response functions (IRFs) in the 1–104 GeV energy range.
Léonard Lebrun, Jennifer Maria Frieden, Chiara Perrina   +2 more
doaj   +1 more source

Characterizing Timing Noise in Normal Pulsars with the Nanshan Radio Telescope

Universe
We present a decade of observations of pulse arrival times for 85 pulsars using the Nanshan radio telescope from July 2002 to March 2014. The Cholesky method can accurately estimate the covariance function of the timing residuals, significantly improving
Jianping Yuan, Na Wang, Shijun Dang, Lin Li, Feifei Kou, Wenming Yan, Zhigang Wen, Zhiyong Liu, Rai Yuen, Jingbo Wang, Zurong Zhou, Peng Liu, Dalin He   +12 more
doaj   +1 more source

Timing the Parkes Multibeam Pulsars

, 1999
. Measurement of accurate positions, pulse periods and period derivatives is an essential follow-up to any pulsar survey. The procedures being used to obtain timing parameters for the pulsars discovered in the Parkes multibeam pulsar survey are described.
F Crawford, I H Stairs, V M Kaspi, J F Bell, N D'amico, R N Manchester, D J Morris, A G Lyne, F Camilo   +8 more
core  

The Galactic Gamma Ray Background from Pulsars

, 2022
Pulsars are becoming the astrophysical version of big collisions for planetary scientists: they are explaining, perhaps, more and more things. Tune into this episode, where we welcome back Adam LaMee, to discuss the origin of a diffuse gamma ray glow ...
Colwell, Joshua, Cooney, James, Dove, Adrienne   +2 more
core  

Searching for Pulsars in Globular Clusters with the Fast-folding Algorithm and a New Pulsar Discovered in M13

The Astrophysical Journal
We employed the fast-folding algorithm on L -band globular cluster (GC) observations taken with the Five-hundred-meter Aperture Spherical radio Telescope to search for new pulsars, especially those with a long rotational period.
Yaowei Li, Lin Wang, Lei Qian, Liyun Zhang, Yujie Chen, Dejiang Yin, Baoda Li, Yinfeng Dai, Ralph P. Eatough, Wenze Li, Dongyue Jiang, Xingnan Zhang, Minghui Li, Yujie Lian, Yuxiao Wu, Tong Liu, Kuo Liu, Zhichen Pan   +17 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

Absence of TeV halos around millisecond pulsars

TeV halos are extended very-high-energy (VHE; 0.1–100 TeV) gamma-ray emission around middle-aged pulsars. So far they have only been found around isolated pulsars, but it has been suggested that they may also be powered by millisecond pulsars (MSPs).
Ruiz-Velasco, E. ; https://orcid.org/, Arteaga-Velázquez, J., Lara, A., Kieda, D., Torres-Escobedo, R., Longinotti, A., Díaz-Velez, J., Caballero-Mora, K., Wang, Z., Ayala Solares, H., Alfaro, R., DuVernois, M., Di Lalla, N., Newbold, M., Engel, K., Diaz-Velez, J. C., Serna-Franco, J., Noriega-Papaqui, R., Ruiz-Velasco, E., Huang, D., Hernández-Cadena, S., Moreno, E., Perez-Perez, E. G., Matthews, J. A., Abeysekara, A., Fan, K. L., Carramiñana, A., Fraija, N., Iriarte, A., Casanova, S., Vargas, H. Leon, Garcia-Gonzalez, J. A., Longinotti, A. L., Springer, R. W., Torres, I., Garfias, F., Linnemann, J., Omodei, N., Goodman, J. A., Harding, J. P., Tibolla, O., Alvarez, C., Bernal, A., León Vargas, H., Luis-Raya, G., Mostafá, M., Rosa-González, D., Nisa, M., Ayala Solares, H. A., De León, S. Coutiño, Roth, M. A., Morales-Soto, J. A., Gonzalez, M. M., Diaz Hernandez, R., Harding, J., Capistrán, T., Rho, C., Avila Rojas, D., Salazar, H., Ergin, T., Coutiño de León, S., Babu, R., Linnemann, J. T., Watson, I. J., García-González, J., Desiati, P., Hueyotl-Zahuantitla, F., Depaoli, D., Yu, S., Caballero-Mora, K. S., Rho, C. D., Wang, Xiaojie, Perez-Perez, E., González, M., Miranda-Romagnoli, P., Tollefson, K., Wu, H., Cotzomi, J., Nisa, M. U., Nellen, L., Araujo, Y. Perez, Springer, R., Sandoval, A., Najafi, M., DuVernois, M. A., Roth, M., Arteaga-Velázquez, J. C., Fan, K., Perez Araujo, Y., Ureña-Mena, F., Morales-Soto, J., Fang, K., Martínez-Castro, J., Matthews, J., Lee, J., Depaoli, D. ; https://orcid.org/, Malone, K., Wang, X., Varela, E., Turner, R., Fraija, S., Goodman, J., Watson, I., Cotti, U., Son, Y., de León, C., Belmont-Moreno, E., Abeysekara, A. U., Kaufmann, S., Martinez, O., De la Fuente, E., Villaseñor, L.   +111 more
core   +2 more sources

Efficiency of Nonthermal Pulsed Emission from Eight MeV Pulsars

The Astrophysical Journal
We report on the properties of pulsed X-ray emission from eight MeV pulsars using XMM-Newton, NICER, NuSTAR, and HXMT data. For five of the eight MeV pulsars, the X-ray spectra can be fit by a broken power-law model with a break energy of ∼5–10 keV.
J. Takata, H.-H. Wang, L. C.-C. , Lin, S. Kisaka   +3 more
doaj   +1 more source

First Search for Gravitational Waves from Known Pulsars with Advanced LIGO

, 2017
We present the result of searches for gravitational waves from 200 pulsars using data from the first observing run ofthe Advanced LIGO detectors. We find no significant evidence for a gravitational-wave signal from any of thesepulsars, but we are able to 
LIGO Scientific Collaboration and Virgo Collaboration, 조희석, 강궁원   +2 more
core  

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