{
  "id": "0809.3495",
  "version": "v1",
  "published": "2008-09-20T10:57:22.000Z",
  "updated": "2008-09-20T10:57:22.000Z",
  "title": "Suzaku and XMM-Newton Observations of Diffuse X-ray Emission from the Eastern Tip Region of the Carina Nebula",
  "authors": [
    "Yuichiro Ezoe",
    "Kenji Hamaguchi",
    "Robert A. Gruendl",
    "You-Hua Chu",
    "Robert Petre",
    "Michael F. Corcoran"
  ],
  "comment": "29 pages, 8 figures, accepted for publication in PASJ",
  "categories": [
    "astro-ph"
  ],
  "abstract": "The eastern tip region of the Carina Nebula was observed with the Suzaku XIS for 77 ks to conduct a high-precision spectral study of extended X-ray emission. XMM-Newton EPIC data of this region were also utilized to detect point sources. The XIS detected strong extended X-ray emission from the entire field-of-view with a 0.2--5 keV flux of $0.7\\sim4\\times10^{-14}$ erg s$^{-1}$ arcmin$^{-2}$. The emission has a blob-like structure that coincides with an ionized gas filament observed in mid-infrared images. Contributions of astrophysical backgrounds and the detected point sources were insignificant. Thus the emission is diffuse in nature. The X-ray spectrum of the diffuse emission was represented by a two-temperature plasma model with temperatures of 0.3 and 0.6 keV and an absorption column density of 2$\\times10^{21}$ cm$^{-1}$. The X-ray emission showed normal nitrogen-to-oxygen abundance ratios and a high iron-to-oxygen abundance ratio. The spectrally deduced parameters, such as temperatures and column densities, are common to the diffuse X-ray emission near $\\eta$ Car. Thus, the diffuse X-ray emission in these two fields may have the same origin. The spectral fitting results are discussed to constrain the origin in the context of stellar winds and supernovae.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-09-20T10:57:22.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "diffuse x-ray emission",
      "eastern tip region",
      "carina nebula",
      "xmm-newton observations",
      "normal nitrogen-to-oxygen abundance ratios"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 29,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 797139,
      "adsabs": "2008arXiv0809.3495E"
    }
  }
}