Results 91 to 100 of about 167,860 (299)

Pulsar emission amplified and resolved by plasma lensing in an eclipsing binary [PDF]

Nature, 2018
Radio pulsars scintillate because their emission travels through the ionized interstellar medium along multiple paths, which interfere with each other.
R. Main, I-Sheng Yang, V. Chan, Dongzi Li, F. Lin, N. Mahajan, U. Pen, K. Vanderlinde, M. Kerkwijk   +8 more
semanticscholar   +1 more source

Leveraging Compressed Sensing and Radiomics for Robust Feature Selection for Outcome Prediction in Personalized Ultra‐Fractionated Stereotactic Adaptive Radiotherapy

Advanced Intelligent Systems, EarlyView.
A compressed sensing (CS)‐based feature selection method is proposed to select the most informative elements in the radiomic features extracted from medical images of personalized ultra‐fractionated stereotactic adaptive treatment. The CS‐based approach is able to simplify the feature selection process and enhance the accuracy and robustness of a ...
Yajun Yu, Steve Jiang, Robert Timmerman, Hao Peng   +3 more
wiley   +1 more source

Orbital modulation of emission of the binary pulsar J0737-3039B

, 2005
In binary radio pulsar system J0737-3039, slow pulsar B shows orbital modulations of intensity, being especially bright at two short orbital phases. We propose that these modulations are due to distortion of pulsar B magnetosphere by pulsar A wind which ...
Lyutikov, Maxim
core   +2 more sources

Radio timing and optical photometry of the black widow system PSR J1518+0204C in the globular cluster M5 [PDF]

, 2014
We report on the determination of astrometric, spin and orbital parameters for PSR J1518+0204C, a "black widow" binary millisecond pulsar in the globular cluster M5.
Dalessandro, E., Ferraro, F. R., Freire, P. C. C., Hessels, J. W. T., Lanzoni, B., Pallanca, C., Ransom, S. M., Stairs, I.   +7 more
core   +2 more sources

Pulsar’s Application in Energy Systems: Review of Current Status, Challenges, and Opportunities

Energies
To accelerate progress toward the realization of advanced energy systems, this review explores the potential of pulsar technology to create a more stable, economical, and environmentally friendly energy infrastructure.
Yongxin Zhang, Yuru Wu, Yu Liu, Biao Sun, Jiahui Yang, Naga Lakshmi Thotakura, Kazi Ishrak Ahmed, Qian Liu, Chong Shen, Yilu Liu   +9 more
doaj   +1 more source

On the Maximum Pair Multiplicity of Pulsar Cascades [PDF]

Astrophysical Journal, 2018
We study electron–positron pair production in polar caps of energetic pulsars to determine the maximum multiplicity of pair plasma a pulsar can produce under the most favorable conditions.
A. Timokhin, A. Harding
semanticscholar   +1 more source

Selective Hydrogenation of 1‐Indanone to 1‐Indanol near Room Temperature Catalyzed by Immobilized Pt‐Nanoparticles on SBA‐15

ChemCatChem, EarlyView.
This study presents a sustainable method of producing 1‐indanol at room temperature via the selective reduction of the C = O bond in 1‐indanone using Pt/SBA‐15 catalysts and green hydrogen. Using n‐decane as a carrier liquid, the process efficiently converts the substance under ambient conditions.
Nick Herrmann, Michael Höltig, Edward Shea, Lorenz Harbacher, Michael Gröger, Christoph Gimmler, Jakob Albert   +6 more
wiley   +1 more source

The distance to the Vela pulsar gauged with HST parallax oservations [PDF]

, 2001
The distance to the Vela pulsar (PSR B0833-45) has been traditionally assumed to be 500 pc. Although affected by a significant uncertainty, this value stuck to both the pulsar and the SNR. In an effort to obtain a model free distance measurement, we have
A. De Luca, Becker W., Bocchino F., Caraveo P. A., De Luca A., G. F. Bignami, Kambach G., Manchester R. N., Milne D. K., Nasuti F. P., P. A. Caraveo, Prentice A. J. R., R. P. Mignani   +12 more
core   +2 more sources

The Green Bank North Celestial Cap Pulsar Survey. III. 45 New Pulsar Timing Solutions [PDF]

Astrophysical Journal, 2018
We provide timing solutions for 45 radio pulsars discovered by the Robert C. Byrd Green Bank Telescope. These pulsars were found in the Green Bank North Celestial Cap pulsar survey, an all-GBT-sky survey being carried out at a frequency of .
R. Lynch, R. Lynch, J. Swiggum, V. Kondratiev, V. Kondratiev, David L. Kaplan, K. Stovall, E. Fonseca, M. Roberts, L. Levin, M. DeCesar, B. Cui, S. B. Cenko, S. B. Cenko, P. Gatkine, A. Archibald, S. Banaszak, C. Biwer, J. Boyles, P. Chawla, L. Dartez, D. Day, A. J. Ford, J. Flanigan, J. Hessels, J. Hessels, J. Hinojosa, F. Jenet, C. Karako-Argaman, V. Kaspi, S. Leake, G. Lunsford, J. Martinez, A. Mata, M. McLaughlin, H. Noori, S. Ransom, M. Rohr, X. Siemens, R. Spiewak, R. Spiewak, I. Stairs, J. V. Leeuwen, J. V. Leeuwen, A. Walker, B. Wells, B. Wells   +46 more
semanticscholar   +1 more source

Electron Density Structure Measurements With Scattered Intense Laser Beam

Contributions to Plasma Physics, EarlyView.
ABSTRACT Short‐pulse intense lasers have the potential to model extreme astrophysical environments in laboratories. Although there are diagnostics for energetic electrons and ions resulting from laser‐plasma interactions, the diagnostics to measure velocity distribution functions at the interaction region of the laser and plasma are limited.
K. Sakai, K. Himeno, S. J. Tanaka, T. Asai, T. Minami, Y. Abe, F. Nikaido, K. Kuramoto, M. Kanasaki, H. Kiriyama, A. Kon, K. Kondo, N. Nakanii, W. Y. Woon, C. M. Chu, K. T. Wu, C. S. Jao, Y. L. Liu, T. A. Pikuz, H. Kohri, A. O. Tokiyasu, S. Isayama, H. S. Kumar, K. Tomita, Y. Fukuda, Y. Kuramitsu   +25 more
wiley   +1 more source