Metagalactic Ultraviolet Background Tables for Calculating Diffuse Astrophysical Plasma Properties
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915312644915200 |
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| author | Taira, Elias Kopenhafer, Claire O'Shea, Brian W. |
| author_facet | Taira, Elias Kopenhafer, Claire O'Shea, Brian W. |
| contents | In developing a deeper understanding of the Circumgalactic Medium, one feature that is poorly understood is the nature of the ultraviolet background (UVB) and its impact on observed column densities. A wide array of UVB models have been created over the years by many different authors, each based on the latest observational data available at the time. In addition to having a large variance between model properties, the formatting between released models is also inconsistent.
This data release provides reformatted versions of several widely-used ultraviolet background models-Faucher-Giguère et al. 2009, Haardt and Madau 2012, Puchwein et al. 2019, and Faucher-Giguère 2020-such that each model is in the same units and thus can be utilized to directly compare these models over a wide redshift range. This release also includes code to run a 'cloudy_cooling_tools' pipeline to generate ionization tables for different UVB models. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_23544 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Metagalactic Ultraviolet Background Tables for Calculating Diffuse Astrophysical Plasma Properties Taira, Elias Kopenhafer, Claire O'Shea, Brian W. Cosmology and Nongalactic Astrophysics In developing a deeper understanding of the Circumgalactic Medium, one feature that is poorly understood is the nature of the ultraviolet background (UVB) and its impact on observed column densities. A wide array of UVB models have been created over the years by many different authors, each based on the latest observational data available at the time. In addition to having a large variance between model properties, the formatting between released models is also inconsistent. This data release provides reformatted versions of several widely-used ultraviolet background models-Faucher-Giguère et al. 2009, Haardt and Madau 2012, Puchwein et al. 2019, and Faucher-Giguère 2020-such that each model is in the same units and thus can be utilized to directly compare these models over a wide redshift range. This release also includes code to run a 'cloudy_cooling_tools' pipeline to generate ionization tables for different UVB models. |
| title | Metagalactic Ultraviolet Background Tables for Calculating Diffuse Astrophysical Plasma Properties |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2505.23544 |