# A new extensive library of PHOENIX stellar atmospheres and synthetic spectra

**Authors:** Tim-Oliver Husser, Sebastian Wende - von Berg, Stefan Dreizler, Derek Homeier, Ansgar Reiners, Travis Barman, Peter H. Hauschildt  
**arXiv:** [1303.5632](https://arxiv.org/abs/1303.5632)  
**Date:** 2013-03-22  
**Summary page:** https://www.summarizepaper.com/en/arxiv-id/1303.5632v2/

## Key points

- Authors present a new extensive library of high-resolution synthetic spectra using PHOENIX
- Library offers versatile tool for spectral analysis and stellar parameter synthesis
- Introduction of novel method for describing micro-turbulence in model atmospheres
- Synthetic spectra cover wavelength range from 500Å to 50,000Å with impressive resolutions
- Parameter space explored includes effective temperatures from 2,300K to 12,000K, surface gravities from 0.0 to +6.0 (log g), metallicities from -4.0 to +1.0 ([Fe/H]), and alpha enhancements from -0.2 to +1.2 ([alpha/Fe])
- Future plans to extend the library up to effective temperatures of 25,000K

## Summary

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In their paper titled "A new extensive library of PHOENIX stellar atmospheres and synthetic spectra," authors Tim-Oliver Husser, Sebastian Wende - von Berg, Stefan Dreizler, Derek Homeier, Ansgar Reiners, Travis Barman, and Peter H. Hauschildt present a groundbreaking library of high-resolution synthetic spectra generated using the stellar atmosphere code PHOENIX. This comprehensive library offers a versatile tool for various applications in spectral analysis and stellar parameter synthesis. Utilizing the spherical mode of PHOENIX, the authors were able to create model atmospheres and derive detailed synthetic stellar spectra with unprecedented accuracy. One notable aspect of this work is the introduction of a novel method for describing micro-turbulence in model atmospheres, enhancing the overall consistency and reliability of the synthetic spectra produced. Covering an extensive wavelength range from 500Å to 50,000Å, the synthetic spectra exhibit impressive resolutions of R=500,000 in the optical and near IR regions, R=100,000 in the IR region, and a fine step size of 0.1Å in the UV range. The parameter space explored by this library spans a wide range: from effective temperatures of 2,300K to 12,000K, surface gravities ranging from 0.0 to +6.0 (log g), metallicities from -4.0 to +1.0 ([Fe/H]), and alpha enhancements from -0.2 to +1.2 ([alpha/Fe]). Furthermore,the authors plan to extend this library up to effective temperatures of 25,000K in future iterations. Overall,this comprehensive library represents a significant advancement in the field of astrophysics by providing researchers with a valuable resource for studying stellar atmospheres and synthesizing accurate spectral data for a diverse range of astronomical objects and phenomena.