Results 71 to 80 of about 4,973 (237)

WFSuite: a Python software suite for X‐ray wavefront sensing and at‐wavelength metrology

Journal of Synchrotron Radiation, EarlyView.
WFSuite is an open‐source Python suite for speckle‐based X‐ray wavefront reconstruction, offering both relative metrology and absolute phase modules. It streamlines wavefront characterization and feedback control for synchrotron and XFEL applications.WFSuite is a Python‐based software suite for X‐ray wavefront sensing and at‐wavelength metrology for ...
Xianbo Shi, Luca Rebuffi, Zhi Qiao, Yu-Chung Lin, Lahsen Assoufid   +4 more
wiley   +1 more source

The CHILES Continuum and Polarization Survey. I. Survey Design and Noise Characterization

The Astronomical Journal
We introduce and describe the CHILES Continuum and Polarisation (CHILES Con Pol) Survey, a 1000 hr 1.4 GHz wideband full polarization radio continuum deepfield with the Very Large Array, commensurate with the CHILES H i deepfield.
Nicholas M. Luber, Min S. Yun, Hansung B. Gim, Daniel Krista-Kelsey, D.J. Pisano, Emmanuel Momjian, Chris Hales   +6 more
doaj   +1 more source

Hyperspectral tomographic diffractive microscopy: Development and applications

Journal of Microscopy, EarlyView.
Abstract Tomographic Diffractive Microscopy (TDM) provides label‐free three‐dimensional imaging of transparent samples with resolution surpassing confocal limits. At IRIMAS, successive instrumental developments since 2009 have enhanced TDM capabilities through transmission, reflection, isotropic, polarisation‐sensitive, and dual‐view configurations ...
Leonardo Pestana Legori, Carlos Alberto Chacón Ávila, Matthieu Debailleul, Nicolas Verrier, Olivier Haeberlé   +4 more
wiley   +1 more source

Compressed sensing imaging techniques for radio interferometry [PDF]

, 2009
Radio interferometry probes astrophysical signals through incomplete and noisy Fourier measurements. The theory of compressed sensing demonstrates that such measurements may actually suffice for accurate reconstruction of sparse or compressible signals ...
Wiaux, Yves; id_orcid, Jacques, L., Scaife, A. M M, Puy, Gilles, Puy, G., Jacques, Laurent, Vandergheynst, P., Wiaux, Y., Vandergheynst, Pierre, Wiaux, Yves, Scaife, A. M. M., Scaife, A.M.M.   +11 more
core   +1 more source

Linear Polarization Properties of Parsec-Scale AGN Jets

Galaxies, 2017
We used 15 GHz multi-epoch Very Long Baseline Array (VLBA) polarization sensitive observations of 484 sources within a time interval 1996–2016 from the MOJAVE program, and also from the NRAO data archive.
Alexander B. Pushkarev, Yuri Y. Kovalev, Matthew L. Lister, Tuomas Savolainen, Margo F. Aller, Hugh D. Aller, Mary A. Hodge   +6 more
doaj   +1 more source

MSWD: A Hybrid Machine‐Learning Framework for Slant Wet Delay Modeling

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract Space geodetic techniques such as Global Navigation Satellite Systems (GNSS) and Very Long Baseline Interferometry (VLBI) are limited by direction‐dependent tropospheric delays, with slant wet delay (SWD) being the most variable component and a major error source.
Zhenyi Zhang, Benedikt Soja
wiley   +1 more source

Evidence for Helical Magnetic Fields Associated with AGN Jets and the Action of a Cosmic Battery

Galaxies, 2018
Theoretical models for the electromagnetic launching of astrophysical jets have long indicated that this process should generate helical magnetic fields, which should then propagate outward with the jet plasma.
Denise Gabuzda
doaj   +1 more source

Interseismic Creep Along the Enriquillo–Plantain Garden Fault, Haiti, Estimated From InSAR

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The Enriquillo–Plantain Garden fault zone (EPGFZ) is a major left‐lateral strike‐slip fault in southern Haiti hosting several recent destructive earthquakes, including the 2021 MW 7.1 Nippes event with primary thrust‐slip. To investigate how strain is accommodated in the vicinity of the 2021 event, we analyzed Sentinel‐1 interferometric ...
Rishabh Dutta, Jeremy L. Maurer, Yi‐Chieh Lee   +2 more
wiley   +1 more source

A Tandem TerraSAR-X Configuration for Single-Pass SAR Interferometry

, 2004
TanDEM-X is a mission proposal for a TerraSAR-X add-on satellite to enable high-resolution single-pass SAR interferometry. The TanDEM-X mission has the goal of generating a global Digital Elevation Model (DEM) with an accuracy corresponding to the DTED-3
Werner, Marian, Hajnsek, Irena, Moreira, Alberto, Settelmeyer, Eckard, Ebner, Hermann, Hounam, David, Krieger, Gerhard, Riegger, Sebastian   +7 more
core  

Determining the Jet Poloidal B Field and Black-Hole Rotation Directions in AGNs

Galaxies, 2018
It is theoretically expected that active galactic nucleus (AGN) jets should carry helical magnetic (B) fields, which arise due to the rotation of the central black hole and accretion disk combined with the jet outflow.
Denise Gabuzda
doaj   +1 more source