English
Related papers

Related papers: SOFT: A synthetic synchrotron diagnostic for runaw…

200 papers

A system of reduced equations is proposed for the electron motion in the strongly-radiation dominated regime for an arbitrary electromagnetic field configuration. The developed approach is used to analyze various scenarios of an electron…

Plasma Physics · Physics 2023-01-06 A. S. Samsonov , E. N. Nerush , I. Yu. Kostyukov

Sufficiently strong electric fields in plasmas can accelerate charged particles to relativistic energies. In this paper we describe the dynamics of positrons accelerated in such electric fields, and calculate the fraction of created…

Plasma Physics · Physics 2018-11-07 Ola Embréus , Linnea Hesslow , Mathias Hoppe , Gergely Papp , Katya Richards , Tünde Fülöp

One of the most important predictions of any gap model for pulsar magnetospheres is the predicted $\gamma$-ray spectra. In the outer gap model, the properties of the synchro-curvature radiation are sensitive to many parameters, whose…

High Energy Astrophysical Phenomena · Physics 2015-04-02 Daniele Viganò , Diego F. Torres , Kouichi Hirotani , Martín E. Pessah

Compton scatter tomography is an emerging technique with attractive applications in several fields in imaging such as non-destructive testing and medical scanning. In this paper, we introduce a novel modality in three dimensions with a…

Numerical Analysis · Mathematics 2022-03-18 Javier Cebeiro , Cecilia Tarpau , Marcela Morvidone , Diana Rubio , Mai Nguyen

Spacecraft autonomy can be enhanced by vision-based navigation (VBN) techniques. Applications range from manoeuvers around Solar System objects and landing on planetary surfaces, to in-orbit servicing or space debris removal. The…

Instrumentation and Methods for Astrophysics · Physics 2018-10-04 Roland Brochard , Jérémy Lebreton , Cyril Robin , Keyvan Kanani , Grégory Jonniaux , Aurore Masson , Noela Despré , Ahmad Berjaoui

Electron-phonon interaction is of central importance for the electrical and heat transport properties of metals, and is directly responsible for charge-density-waves or (conventional) superconducting instabilities. The direct observation of…

Superconductivity · Physics 2022-02-02 S. M. Souliou , A. Bosak , G. Garbarino , M. Le Tacon

I investigate the effect of non-uniform magnetic fields in the extended structures of radio galaxies on the observed synchrotron and inverse-Compton emission. On the assumption of an isotropic field, with a given power spectrum and a…

High Energy Astrophysical Phenomena · Physics 2015-06-16 M. J. Hardcastle

The time dependent synchrotron emission from relativistic jets, and the relation between the synchrotron and ERC emission is considered within the framework of the radiative front model. The timescale and profile of the optically thin…

Astrophysics · Physics 2009-10-31 Amir Levinson

We show that the symmetries of image formation by scattering enable graph-theoretic manifold-embedding techniques to extract structural and timing information from simulated and experimental snapshots at extremely low signal. The approach…

Computational Physics · Physics 2011-09-27 Peter Schwander , Chun Hong Yoon , Abbas Ourmazd , Dimitrios Giannakis

We calculate the synchrotron self-Compton emission from internal shocks occurring in relativistic winds as a source of gamma-ray bursts, with allowance for self-absorption. For plausible model parameters most pulses within a Gamma-Ray Burst…

Astrophysics · Physics 2009-10-31 A. Panaitescu , P. Meszaros

Coherent synchrotron radiation (CSR) occurs when short bunches travel on strongly bent trajectories. Its effects on high-quality beams can be severe and are well understood qualitatively. For quantitative results, however, one has to rely…

Accelerator Physics · Physics 2009-11-06 A. Kabel , M. Dohlus , T. Limberg

In this work, we present SoFT: Solar Feature Tracking, a novel feature-tracking tool developed in Python and designed to detect, identify, and track magnetic elements in the solar atmosphere. It relies on a watershed segmentation algorithm…

Solar and Stellar Astrophysics · Physics 2024-12-10 M. Berretti , M. Stangalini , S. Mestici , D. B. Jess , S. Jafarzadeh , F. Berrilli

Drone-based rapid and accurate environmental edge detection is highly advantageous for tasks such as disaster relief and autonomous navigation. Current methods, using radars or cameras, raise deployment costs and burden lightweight drones…

This study presents an effective autofocusing approach for synthetic aperture radar imaging of the human body under conditions of respiratory motion. The proposed method suppresses respiratory-motion-induced phase errors by separating radar…

Signal Processing · Electrical Eng. & Systems 2026-01-13 Masaya Kato , Takuya Sakamoto

Developing robust drone detection systems is often constrained by the limited availability of large-scale annotated training data and the high costs associated with real-world data collection. However, leveraging synthetic data generated…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Tamara R. Lenhard , Andreas Weinmann , Kai Franke , Tobias Koch

A growing number of both galactic and extragalactic supernova remnants show non-thermal (non-plerionic) emission in the X-ray band. New synchrotron models, realized as SRESC and SRCUT in XSPEC 11, which use the radio spectral index and flux…

Astrophysics · Physics 2009-11-06 Kristy Dyer , Stephen Reynolds , Kazik Borkowski , Rob Petre

We review some of the properties of extensive cosmic ray air showers and describe a simple model of the radio-frequency radiation generated by shower electrons and positrons as they bend in the Earth's magnetic field. We perform simulations…

Astrophysics · Physics 2009-11-07 Denis A. Suprun , Peter W. Gorham , Jonathan L. Rosner

Photon-based spectroscopies have had a significant impact on both fundamental science and applications by providing an efficient approach to investigate the microscopic physics of materials. Together with the development of synchrotron…

Strongly Correlated Electrons · Physics 2018-09-06 Yao Wang , Martin Claassen , Chaitanya Das Pemmaraju , Chunjing Jia , Brian Moritz , Thomas P. Devereaux

This study introduces a novel real-time betatron tune measurement algorithm, utilizing Schottky signals and an FPGA-based backend architecture, specifically designed for rapidly ramping synchrotrons, with particular application to the…

Accelerator Physics · Physics 2025-06-11 Peihan Sun , Manzhou Zhang , Renxian Yuan , Deming Li , Jian Dong , Ying Shi

Synchrotron emission and absorption determine the observational appearance of many astronomical systems. In this paper, we describe a numerical scheme for calculating synchrotron emissivities and absorptivities in all four Stokes parameters…

High Energy Astrophysical Phenomena · Physics 2016-05-25 Alex Pandya , Zhaowei Zhang , Mani Chandra , Charles F. Gammie
‹ Prev 1 8 9 10 Next ›