تقرير
Investigating the Ultra-Compact X-ray Binary Candidate SLX 1735-269 with NICER and NuSTAR
| العنوان: | Investigating the Ultra-Compact X-ray Binary Candidate SLX 1735-269 with NICER and NuSTAR |
|---|---|
| المؤلفون: | Moutard, David, Ludlam, Renee, Sudha, Malu, Buisson, Douglas, Cackett, Edward, Degenaar, Nathalie, Fabian, Andrew, Gandhi, Poshak, Garcia, Javier, Shaw, Aarran, Tomsick, John |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | We present two simultaneous NICER and NuSTAR observations of the ultra-compact X-ray binary (UCXB) candidate SLX 1735-269 while the source was in two different spectral states. Using various reflection modeling techniques, we find that xillverCO, a model used for fitting X-ray spectra of UCXBs with high carbon and oxygen abundances is an improvement over relxill or relxillns, which instead contains solar-like chemical abundances. This provides indirect evidence in support of the source being ultra-compact. We also use this reflection model to get a preliminary measurement of the inclination of the system, $i = 57^{+23}_{-7}$ degrees. This is consistent with our timing analysis, where a lack of eclipses indicates an inclination of $i<80^{\circ}$. The timing analysis is otherwise inconclusive, and we can not confidently measure the orbital period of the system. Comment: 12 Pages, 8 Figures, 4 Tables, Accepted for Publication in ApJ |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2401.12371 |
| رقم الأكسشن: | edsarx.2401.12371 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |