Report
The complications of learning from Super Soft Source X-ray spectra
| العنوان: | The complications of learning from Super Soft Source X-ray spectra |
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| المؤلفون: | Ness, Jan-Uwe |
| سنة النشر: | 2019 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | Super Soft X-ray Sources (SSS) are powered by nuclear burning on the surface of an accreting white dwarf, they are seen around 0.1-1 keV (thus in the soft X-ray regime), depending on effective temperature and the amount of intervening interstellar neutral hydrogen N_H. The most realistic model to derive physical parameters from observed SSS spectra would be an atmosphere model that simulates the radiation transport processes. However, observed SSS high-resolution grating spectra reveal highly complex details that cast doubts on the feasibility of achieving unique results from atmosphere modeling. In this article, I discuss two independent atmosphere model analyses of the same data set, leading to different results. I then show some of the details that complicate the analysis and conclude that we need to approach the interpretation of high-resolution SSS spectra differently. We need to focus more on the data than the models and to use more phenomenological approaches as is traditionally done with optical spectra. Comment: Accepted in JASR. 7 pages, 6 figure |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.asr.2019.09.002 |
| URL الوصول: | http://arxiv.org/abs/1909.09711 |
| رقم الانضمام: | edsarx.1909.09711 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.asr.2019.09.002 |
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