首页> 外文期刊>The Astrophysical journal >THE VELOCITY OF THE EMITTING PLASMA OF THE SUPERLUMINAL GALACTIC SOURCE GRS 1915 + 105
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THE VELOCITY OF THE EMITTING PLASMA OF THE SUPERLUMINAL GALACTIC SOURCE GRS 1915 + 105

机译:超发光银河源GRS 1915 + 105的发射等离子体的速度

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We calculate the flux and size ratio of radio-emitting features moving in antiparallel directions at relativistic speeds, taking into account that the pattern we observe may move at a velocity different from the one of the emitting plasma. Both velocities can be determined in sources in which both the approaching and the receding features are observed. This is the case of the Galactic superluminal source GRS 1915 + 105, for which the pattern speed (responsible for the apparent superluminal velocity) was found to be 0.92c. For this source we find that the velocity of the plasma is 0.73c. The found velocity helps decreasing the estimate of the associated kinetic power. Since intrinsically identical knots will be observed to have different sizes, high-resolution radio observations of GRS 1915 +105 will be a test for the proposed difference of the pattern and plasma velocities.
机译:考虑到我们观察到的模式可能以不同于发射等离子体之一的速度移动,我们计算了以相对论速度沿反平行方向移动的无线电发射特征的通量和尺寸比。可以在观察到接近和后退特征的源中确定两种速度。银河超光速光源GRS 1915 + 105就是这种情况,其图案速度(对表观超光速负责)为0.92c。对于此源,我们发现等离子体的速度为0.73c。所发现的速度有助于减少相关动能的估计。由于将观察到本质上相同的结具有不同的大小,因此GRS 1915 +105的高分辨率无线电观测将是对所建议的图案速度和等离子体速度差异的一种检验。

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