论文标题

研究X射线喷气机的起源:四种混合形态莫哈维·布拉兹(Mojave Blazars)的案例研究

Investigating the origin of X-ray jets: A case study of four hybrid morphology MOJAVE blazars

论文作者

Sebastian, Biny, Kharb, Preeti, Lister, Matthew L., Marshall, Herman L., O'Dea, Christopher P., Baum, Stefi A.

论文摘要

我们已经对四个莫哈韦·布拉萨尔(Mojave Blazars)进行了Chandra,HST和VLA观察,这些莫哈韦大酒将在无线电形态上被归类为“混合动力”(FR I/II)Blazars,但不是全部无线电力量。这项研究的动机是确定喷气机中的X射线排放机制,在FR I和FR II喷气机中有所不同。我们在两个Blazars中使用足够的SNR检测到X射线喷射发射。 PKS 0215+015和TXS 0730+504。我们对这些来源的射流区域进行了宽带发射的光谱能分布(SED)建模,并发现由于HST光学和IR数据获得了深层上限,因此排除了单个同步加速器发射模型。 IC-CMB模型可以在两个来源中重现X射线喷射发射,尽管该模型需要极端的射流参数。我们的两个来源都具有像无线电一样的FR II,我们的结果与以前的研究一致,这表明无线电功率比确定X射线喷气机的发射机制更重要。

We have carried out Chandra, HST, and VLA observations of four MOJAVE blazars that have been previously classified as 'hybrid' (FR I/II) blazars in terms of radio morphology but not total radio power. The motivation of this study is to determine the X-ray emission mechanism in jets, these being different in FR I and FR II jets. We detected X-ray jet emission with sufficient SNR in two blazars viz. PKS 0215+015 and TXS 0730+504. We carried out spectral energy distribution (SED) modeling of the broad-band emission from the jet regions in these sources and found that a single synchrotron emission model is ruled out due to the deep upper limits obtained from HST optical and IR data. The IC- CMB model can reproduce the X-ray jet emission in both sources although the model requires extreme jet parameters. Both our sources possess FR II like radio powers and our results are consistent with previous studies suggesting that radio power is more important than FR morphology in determining the emission mechanism of X-ray jets.

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