标题： 结构和磁场：SS 433进动喷流系统的第二部分。 喷流的固有亮度 显示英文标题

标题： Structure and Magnetic Fields in the Precessing Jet System SS 433 II. Intrinsic Brightness of the Jets

摘要： 对双星X射线源SS 433的深邃甚大天线阵成像研究（有时被归类为微类星体）已被用来研究其射电喷流的固有亮度分布和演化。 通过消除多普勒增亮和投影效应，我们恢复了喷流的固有亮度作为喷流物质发射时年龄τ函数的形式。 我们发现，当比较相等τ时，两个喷流在本质上非常相似，并且它们最好由连续喷流预期的Doppler增亮形式D^{2+alpha}描述。 喷流的固有亮度随年龄的变化表现出复杂的方式。 在60 < τ < 150天的年龄范围内，喷流衰减最好由τ的指数函数表示，但线性或幂律函数并未在统计上被排除。 随后是一个范围直到τ ~ 250天，在此期间固有亮度基本恒定。 在更晚的时间点，喷流衰减可以大致拟合成τ的指数或幂律函数。 显示英文摘要

摘要： Deep Very Large Array imaging of the binary X-ray source SS 433, sometimes classified as a microquasar, has been used to study the intrinsic brightness distribution and evolution of its radio jets. The intrinsic brightness of the jets as a function of age at emission of the jet material tau is recovered by removal of the Doppler boosting and projection effects. We find that intrinsically the two jets are remarkably similar when compared for equal tau, and that they are best described by Doppler boosting of the form D^{2+alpha}, as expected for continuous jets. The intrinsic brightnesses of the jets as functions of age behave in complex ways. In the age range 60 < tau < 150 days, the jet decays are best represented by exponential functions of tau, but linear or power law functions are not statistically excluded. This is followed by a region out to tau ~ 250 days during which the intrinsic brightness is essentially constant. At later times the jet decay can be fit roughly as exponential or power law functions of tau.