collaborators

7 papers

astro-ph.HE2026

Magnetar Fireballs and Short Bursts: Curved Spacetime Lensing, QED Effects, Spectra, Polarization, and Impulse Responses

Zorawar Wadiasingh, Hoa Dinh Thi, Constantinos Kalapotharakos +13

Magnetar short bursts (SBs) are hard X-ray transients of durations s peaking at keV, and are prime targets for new high-energy missions and polarimeters. The…

astro-ph.HE2026

Simulation-Based Prediction of Black Hole Fe K Line Profiles

Chris Nagele, Julian H. Krolik, Brooks E. Kinch +1

One of the most useful spectral diagnostics of accreting black hole systems is the Fe K fluorescence line. Detected in many systems, it is often used to estimate the black hole…

astro-ph.HE2026

Simulation-Based Prediction of Black Hole Spectra: From to

Chris Nagele, Julian H. Krolik, Rongrong Liu +2

It has long been thought that black hole accretion flows are driven by magnetohydrodynamic (MHD) turbulence, and there are now many general relativistic global simulations illustra…

astro-ph.HE2026

The Advanced X-ray Imaging Satellite (AXIS) Community Science Book

Michael Koss, Nafisa Aftab, Steven W. Allen +395

The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (A…

astro-ph.HE2025

Polarization Signatures of Quasi-Periodic Oscillations in Simulated Tilted, Truncated Disks

P. Chris Fragile, Deepika A. Bollimpalli, Jeremy D. Schnittman +1

We utilize the Monte Carlo radiation transport code, Pandurata, to create images, spectra, polarization maps, and light curves from a set of general relativistic magnetohydrodynami…

astro-ph.CO2025

Basic Elements of Strong Gravitational Lensing

Paul L. Schechter, Jeremy D. Schnittman

Even when used to describe the same phenomenon, equations, graphics and words each give different perspectives and lead to complementary insights. The basic elements of strong grav…