论文标题
对古典Novae的新见解
New Insights into Classical Novae
论文作者
论文摘要
我们调查我们对古典Novae的理解：在二元系统中白矮人表面上的非末端，热核喷发。从银河novae中发现的GEV伽马射线的最新发现和意外发现，强调了Novae的复杂性及其作为研究冲击和颗粒加速的实验室的价值。我们通过这种新镜头回顾了半个世纪的新星文学，并得出结论： - 观察结果证实了热核失控理论的基础知识。白矮人在失控后持续一段时间，直到最近，人们普遍认为，这种核燃烧的辐射仅决定了Nova的隆隆光度亮度。 - 从二元系统中发出材料的过程仍然很少理解。 Novae的质量损失很复杂（有时会在速度，速度和形态上波动），并且通常在数周，几个月或几年的时间内延长。 - 质量喷射的复杂性导致伽玛射线产生Nova弹出内部的冲击。当检测到伽玛射线（最大值左右）时，电击会深深嵌入，周围气体非常密集。 - 相关光学和伽马射线光曲线的观察证实，冲击是辐射的，对NOVAE的降压光度产生了显着贡献。因此，Novae是最接近，最常见的“相互作用驱动”瞬变。
We survey our understanding of classical novae: non-terminal, thermonuclear eruptions on the surfaces of white dwarfs in binary systems. The recent and unexpected discovery of GeV gamma-rays from Galactic novae has highlighted the complexity of novae and their value as laboratories for studying shocks and particle acceleration. We review half a century of nova literature through this new lens, and conclude: --The basics of the thermonuclear runaway theory of novae are confirmed by observations. The white dwarf sustains surface nuclear burning for some time after runaway, and until recently, it was commonly believed that radiation from this nuclear burning solely determines the nova's bolometric luminosity. --The processes by which novae eject material from the binary system remain poorly understood. Mass loss from novae is complex (sometimes fluctuating in rate, velocity, and morphology) and often prolonged in time over weeks, months, or years. --The complexity of the mass ejection leads to gamma-ray producing shocks internal to the nova ejecta. When gamma-rays are detected (around optical maximum), the shocks are deeply embedded and the surrounding gas is very dense. --Observations of correlated optical and gamma-ray light curves confirm that the shocks are radiative and contribute significantly to the bolometric luminosity of novae. Novae are therefore the closest and most common "interaction-powered" transients.
