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arXiv · 1505.01408

From the "blazar sequence" to unification of blazars and radio galaxies

Dingrong Xiong·Xiong Zhang·Jinming Bai·Haojing Zhang
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Abstract

Based on a large Fermi blazar sample, the blazar sequence (synchrotron peak frequency $\nu_{\rm peak}$ versus synchrotron peak luminosity $L_{\rm peak}$) is revisited. It is found that there is significant anti-correlation between $\nu_{\rm peak}$ and $L_{\rm peak}$ for blazars. However, after being Doppler corrected, the anti-correlation disappears. The jet cavity power ($P_{\rm jet}$) is estimated from extended radio luminosity. So it is free of beaming effect. We find that there are significant anti-correlations between $P_{\rm jet}$ and beam-corrected $\nu_{\rm peak}^{'}$ for both blazars and radio galaxies, which supports the blazar sequence and unification of blazars and radio galaxies (an alternative relationship is the correlation between jet power and $\gamma$-ray photon index).

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Dingrong Xiong, Xiong Zhang, Jinming Bai, Haojing Zhang. 2015-05-06. From the "blazar sequence" to unification of blazars and radio galaxies. https://arxiv.org/abs/1505.01408

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