{
  "id": "1805.03758",
  "version": "v1",
  "published": "2018-05-09T23:52:34.000Z",
  "updated": "2018-05-09T23:52:34.000Z",
  "title": "Spectral Energy Distributions for TeV Blazars",
  "authors": [
    "C. Lin",
    "J. H. Fan"
  ],
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "In this work, we collected a sample of 69 TeV blazars from TeVCat, obtained their multi-wavelength observations, and fitted their spectral energy distributions by using the second degree polynomial function. The structure parameters of the synchrotron bumps for 68 blazars and those of the inverse-Compton bumps for 56 blzars are obtained. Then, we adopted statistical analysis to the parameters (curvature, peak frequency, peak luminosity, bolometric luminosity, and X/$\\gamma$-ray spectral indexes). From our analysis and discussions, we can get following conclusions: 1. There is a clear positive correlation between the synchrotron peak frequency, $\\log \\nu_p^s$, and the inverse-Compton peak frequency $\\log \\nu_p^{IC}$, and that between the synchrotron peak luminosity, $\\log \\nu_p^s L_p^s$, and the inverse-Compton peak luminosity, $\\log \\nu_p^{IC}L_p^{IC}$. 2. The correlation between the peak frequency and the curvature of synchrotron bump is clearly different from that of the inverse-Compton bump, which further indicates that there are different emission mechanisms between them. 3. There is a correlation between $\\log \\nu_p^{IC}$ and $\\gamma$-ray spectral index, $\\alpha_\\gamma$, for the TeV blazars: $\\log \\nu^{IC}_p = -(4.59 \\pm 0.30) \\alpha_\\gamma + (32.67 \\pm 0.59)$, which is consistent with previous work of Abdo et al.(2010). 4. An \"L-shape\" relation is found between $\\log \\nu^s_p$ and $\\alpha_X$ for both TeV blazars and Fermi blazars. A significant correlation between $\\log \\nu^s_p$ and X-ray photon index ($\\alpha_X$) is found for the TeV blazars with high synchrotron peak frequency: $\\log \\nu^{s}_{p} = -(3.20 \\pm 0.34) \\alpha_X + (24.33 \\pm 0.79)$, while the correlation is positive for low synchrotron peaked TeV sources. 5. In the $\\alpha_X-\\alpha_\\gamma$ diagram, there is also an \"L-shape\", the anti-correlation is consistent with the available results in the literature, (...)",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-05-09T23:52:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "tev blazars",
      "spectral energy distributions",
      "synchrotron peaked tev sources",
      "peak luminosity",
      "ray spectral index"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}