# Hydrodynamic and Spectral Simulations of HMXB Winds

## TL;DR

This paper presents a comprehensive simulation of the wind and accretion flow in the high-mass X-ray binary Vela X-1, integrating hydrodynamics, photoionization, atomic data, and radiation transport to analyze its physical properties.

## Contribution

It introduces a novel integrated model combining hydrodynamics, photoionization, atomic data, and radiation transport for simulating HMXB winds.

## Key findings

- Maps of density, temperature, velocity, and ionization parameter generated.
- Emissivity distributions of X-ray emission lines produced.
- Preliminary results demonstrate the model's capability to analyze HMXB environments.

## Abstract

We describe preliminary results of a global model of the radiatively-driven photoionized wind and accretion flow of the high-mass X-ray binary Vela X-1. The full model combines FLASH hydrodynamic calculations, XSTAR photoionization calculations, HULLAC atomic data, and Monte Carlo radiation transport. We present maps of the density, temperature, velocity, and ionization parameter from a FLASH two-dimensional time-dependent simulation of Vela X-1, as well as maps of the emissivity distributions of the X-ray emission lines.