First X-ray polarization measurement confirms the low black-hole spin in LMC X-3

Kavli Affiliate: Nicola Omodei | First 5 Authors: Jiří Svoboda, Michal Dovčiak, James F. Steiner, Fabio Muleri, Adam Ingram | Summary: X-ray polarization is a powerful tool to investigate the geometry of accreting material around black holes, allowing independent measurements of the black hole spin and orientation of the innermost parts of the accretion disk. […]


Continue.. First X-ray polarization measurement confirms the low black-hole spin in LMC X-3

The Kinematic Structure of Magnetically Aligned HI Filaments

Kavli Affiliate: Susan E. Clark | First 5 Authors: Doyeon Avery Kim, Susan E Clark, Mary E Putman, Larry Li, | Summary: We characterize the kinematic and magnetic properties of HI filaments located in a high Galactic latitude region ($165^circ < alpha < 195^circ$ and $12^circ < delta < 24^circ$). We extract three-dimensional filamentary structures […]


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A new method for spatially resolving the turbulence driving mixture in the ISM with application to the Small Magellanic Cloud

Kavli Affiliate: Susan E. Clark | First 5 Authors: Isabella A. Gerrard, Christoph Federrath, Nickolas M. Pingel, Naomi M. McClure-Griffiths, Antoine Marchal | Summary: Turbulence plays a crucial role in shaping the structure of the interstellar medium. The ratio of the three-dimensional density contrast ($sigma_{rho/rho_0}$) to the turbulent sonic Mach number ($mathcal{M}$) of an isothermal, […]


Continue.. A new method for spatially resolving the turbulence driving mixture in the ISM with application to the Small Magellanic Cloud

A Hierarchical Framework for explaining the Cosmic Ray Spectrum using Diffusive Shock Acceleration

Kavli Affiliate: Roger Blandford | Summary:The hypothesis that the entire cosmic ray spectrum, from $lesssim1,rm GeV$ to $gtrsim100,rm EeV$ energy, can be accounted for by diffusive shock acceleration on increasingly large scales is critically examined. Specifically, it is conjectured that Galactic cosmic rays, up to $sim3,rm PeV$, are mostly produced by local supernova remnants, from […]


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Higher Order Nyquist Zone Sampling with RFSoC Data Converters for Astronomical and High Energy Physics Readout Systems

Kavli Affiliate: Zeeshan Ahmed | First 5 Authors: Chao Liu, Zeeshan Ahmed, Shawn W. Henderson, Ryan Herbst, Larry Ruckman | Summary: From generation to generation, the maximum RF frequency and sampling rate of the integrated data converters in RF system-on-chip (RFSoC) family devices from Xilinx increases significantly. With the integrated digital mixers and up and […]


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Gravitational Wave Science in the Mid-Band with Atom Interferometers

Kavli Affiliate: Peter W. Graham | First 5 Authors: Sebastian Baum, Zachary Bogorad, Peter W. Graham, , | Summary: Gravitational Waves (GWs) have been detected in the $sim 100$ Hz and nHz bands, but most of the gravitational spectrum remains unobserved. A variety of detector concepts have been proposed to expand the range of observable […]


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Gravitational Wave Measurement in the Mid-Band with Atom Interferometers

Kavli Affiliate: Peter W. Graham | First 5 Authors: Sebastian Baum, Zachary Bogorad, Peter W. Graham, , | Summary: Gravitational Waves (GWs) have been detected in the $sim$100 Hz and nHz bands, but most of the gravitational spectrum remains unobserved. A variety of detector concepts have been proposed to expand the range of observable frequencies. […]


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On the Comparison of AGN with GRMHD Simulations: II. M87

Kavli Affiliate: Roger Blandford | Summary:Horizon-scale observations of the jetted active galactic nucleus M87 are compared with simulations spanning a broad range of dissipation mechanisms and plasma content in three-dimensional general relativistic flows around spinning black holes. Observations of synchrotron radiation from radio to X-ray frequencies can be compared with simulations by adding prescriptions specifying […]


Continue.. On the Comparison of AGN with GRMHD Simulations: II. M87

The high-speed X-ray camera on AXIS

Kavli Affiliate: Peter Orel | First 5 Authors: Eric D. Miller, Marshall W. Bautz, Catherine E. Grant, Richard F. Foster, Beverly LaMarr | Summary: AXIS is a Probe-class mission concept that will provide high-throughput, high-spatial-resolution X-ray spectral imaging, enabling transformative studies of high-energy astrophysical phenomena. To take advantage of the advanced optics and avoid photon […]


Continue.. The high-speed X-ray camera on AXIS

The high-speed X-ray camera on AXIS

Kavli Affiliate: Peter Orel | First 5 Authors: Eric D. Miller, Marshall W. Bautz, Catherine E. Grant, Richard F. Foster, Beverly LaMarr | Summary: AXIS is a Probe-class mission concept that will provide high-throughput, high-spatial-resolution X-ray spectral imaging, enabling transformative studies of high-energy astrophysical phenomena. To take advantage of the advanced optics and avoid photon […]


Continue.. The high-speed X-ray camera on AXIS