Multi-frequency Models for AART

This repository is an extended version of AART, a full detailed description of which is at https://github.com/iAART/aart.

These modifications focus on various physical parameters affecting the AART emission profile behavior. The simulation includes calculations of temperature, density, magnetic fields, and specific intensity, tailored for astrophysical contexts.

Table of Contents

• Installation
• Usage
• Key Features
• Parameters
• Example

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Installation

To use this simulation, clone the repository and install the required packages:

git clone https://github.com/iAART/AstroModels.git
cd AstroModels
pip install -r requirements.txt

Ensure you have Python 3.x and the following libraries installed:

NumPy
SciPy
Astropy
lmfit

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Key Features

• Radial Profiles: All major additions are contained in AstroModels/aart_func/rprofs_f.py

• Temperature, Density Profiles, and Magnetic Field Strength: Calculate the electron temperature and density as functions of distance from the black hole, as well as the Magnetic field strength.

• Synchrotron Emission: Models synchrotron radiation for different configurations and astrophysical parameters.

• Noisy Density and Temperature Profiles: Incorporates noise in density and temperature for realistic simulations.

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Parameters

The following parameters can be adjusted to modify the simulation:

Parameter	Description	Base Value
nu	Observation frequency	230e9
mass	blackhole mass	6.5e9 Msun
scaleh	plasma disk scale height	0.5
theta_b	angle between magnetic field and wave vector, ignored if not fixed	60 degrees
rb0	distance at which power laws take base value	5r_g
nth0	Base value for the density power law	3.99e5 1/cm^-3
te0	Base value for temperature power law	3e10K
b0	Base value for the magnetic field power law	8 Gauss
pdens	Sets decay speed for the density power law	-0.7
ptemp	Sets decay speed for the temperature power law	-1
pmag	Sets decay speed for the magnetic field power law	-1.5
nscale	inosiy perturbation scale	.3

• Function keys: The choice to add Inoisy purturbations to the density, temperature, and/or magnetic field strength power laws.

Refer to the code comments for detailed descriptions of each parameter and its units.

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Examples

And example run of the code can be found as "ExampleMultiFrequency.ipynb"