These codes are a computer program for calculating a three-dimentional model of an infalling-rotating envelope and a Keplerian disk. Fits files of a cube data and a position-velocity diagram are created. This program uses CFITSIO library.
The formalism adopted in this program and how to use it are summarized in Oya et al. (2022).
- Makefile
- feria.h
- feria_PV.cpp
- feria_env.cpp
- feria_fitsio.cpp
- feria_main.cpp
- feria_mesh.cpp
- feria_parameter.cpp
- feria_sky.cpp
- feria_varParameters.py
- readme.txt
- template.in
You need to edit the following files.
- Makefile
- feria.h
- template.in
- (Optional) feria_varParameters.py
- Please edit the linker for cfitsio according to your environment.
- Header file.
- Please edit the values for 'logNpix' and 'logNvel' to change the number of mesh.
- The number of mesh for the position axes in the cube file is 2^{logNpix}, and that for the velocity axes is 2^{logNvel}.
- Template for the input file.
- This file includes the parameters for the model.
- See comments in the file for the details of the parameters.
- This python script makes fits files for various parameter sets.
- Please edit the lists for the phsical parameters.
- This script overwrite the input file and execute the 'feria' file.
You can edit the following files to modify the model calculation.
- feria_env.cpp
- feria_sky.cpp
- This file contains the class for the physical conditions of the envelope gas.
- By default, the density profile of the emitter and the gas temperature profile are the power law of the distance from the protostar.
- You can edit the functions "feriaModel::env_dens" and "feriaModel::env_temp" to change these profiles.
- This file contains the functions to calculate the observed intensity.
- By default, the emissivity is assumed to be proportional to the column density of the emitter.
- Neither of the excitation effect or the radiation transfer is considered. You can edit the function "skyPlane::projection" to change how to calculate the emissivity.
make
./feria < $(your inputfile name)
- CFITSIO: Pence, W. (1999) in ASP Conf. Ser., Vol. 172, Astronomical Data Analysis Software and Systems VIII, ed. D. Mehringer, R. Plante, and D. Roberts (San Francisco: ASP), 487
- FERIA: Oya, Y., Kibukawa, H., Miyake, S., et al. 2022, PASP, 134, 094301. doi:10.1088/1538-3873/ac8839
- GitHub: https://github.com/YokoOya/feria
- e-Mail: Yoko Oya (yoko.oya_at_yukawa.kyoto-u.ac.jp)