论文标题
使用光谱绘制低质量X射线二进制辐照积光盘的几何形状和结构：Maxi J0637的飞行员研究$ - $ 430
Using Optical Spectroscopy to Map the Geometry and Structure of the Irradiated Accretion Discs in Low-mass X-ray Binaries: The Pilot-Study of MAXI J0637$-$430
论文作者
论文摘要
低质量X射线二进制（LMXB）中的反复出现的瞬态爆发为我们提供了强大的测试床，以限制知识较差的积聚过程。虽然无法直接成像，但相位分辨光谱可以提供强大的诊断，以研究其高度复杂，时间依赖的积聚盘。 We present an 8-month long multi-wavelength (UV, optical, X-ray) monitoring campaign of the new candidate black hole LMXB MAXI J0637$-$430 throughout its 2019/2020 outburst, using the {\em Neil Gehrels Swift Observatory}, as well as three quasi-simultaneous epochs of Gemini/GMOS optical spectroscopy.我们发现证据表明，加热吸积盘的X射线照射与He {\ sc ii} 4686ÅMessiveLine曲线的演变之间存在相关性。我们的结果表明，在LMXBS的爆发周期期间，X射线照射区域的发射区域与X射线辐照的物理性质之间存在联系。此外，我们能够表明，可以将爆发盘中盘中盘中圆盘加热的物理特性的变化印在这些系统中的H/HE发射线轮廓中。
The recurring transient outbursts in low-mass X-ray binaries (LMXBs) provide us with strong test-beds for constraining the poorly understood accretion process. While impossible to image directly, phase-resolved spectroscopy can provide a powerful diagnostic to study their highly complex, time-dependent accretion discs. We present an 8-month long multi-wavelength (UV, optical, X-ray) monitoring campaign of the new candidate black hole LMXB MAXI J0637$-$430 throughout its 2019/2020 outburst, using the {\em Neil Gehrels Swift Observatory}, as well as three quasi-simultaneous epochs of Gemini/GMOS optical spectroscopy. We find evidence for the existence of a correlation between the X-ray irradiation heating the accretion disc and the evolution of the He {\sc ii} 4686 Åemission line profiles detected in the optical spectra. Our results demonstrate a connection between the line emitting regions and physical properties of the X-ray irradiation heating the discs during outburst cycles of LMXBs. Further, we are able to show that changes in the physical properties of the irradiation heating the disc in outburst can be imprinted within the H/He emission line profiles themselves in these systems.
