{
  "id": "1209.3879",
  "version": "v3",
  "published": "2012-09-18T09:01:28.000Z",
  "updated": "2012-11-02T02:21:12.000Z",
  "title": "Pilot VLBI Survey of SiO v=3 J=1--0 Maser Emission around Evolved Stars",
  "authors": [
    "Hiroshi Imai",
    "Miyako Oyadomari",
    "Sze Ning Chong",
    "Akiharu Nakagawa",
    "Tomoharu Kurayama",
    "Jun-ichi Nakashima",
    "Naoko Matsumoto",
    "Takumi Nagayama",
    "Tomoaki Oyama",
    "Shota Mizuno",
    "Shuji Deguchi",
    "Se-Hyung Cho"
  ],
  "comment": "5 Pages, 3 figures, Fig.3 and Tab. 2 were corrected; Publications of the Astronomical Society of Japan, Vol. 64, No. 6 issued on 2012 December 25",
  "categories": [
    "astro-ph.SR",
    "astro-ph.GA"
  ],
  "abstract": "In this Letter, we report detections of SiO v=3 J=1--0 maser emission in very long baseline interferometric (VLBI) observations towards 4 out of 12 long-period variable stars: WX Psc, R Leo, W Hya, and T Cep. The detections towards WX Psc and T Cep are new ones. We also present successful astrometric observations of SiO v=2 and v=3 J=1--0 maser emissions associated with two stars: WX Psc and W Hya and their position-reference continuum sources: J010746.0+131205 and J135146.8-291218 with the VLBI Exploration of Radio Astrometry (VERA). The relative coordinates of the position-reference continuum source and SiO v=3 maser spots were measured with respect to those of an SiO v=2 maser spot adopted as fringe-phase reference. Thus the faint continuum sources were inversely phase-referenced to the bright maser sources. It implies possible registration of multiple SiO maser line maps onto a common coordinate system with 10 microarcsecond-level accuracy.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2012-11-02T02:21:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "maser emission",
      "pilot vlbi survey",
      "evolved stars",
      "wx psc",
      "position-reference continuum source"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1093/pasj/64.6.L6",
      "journal": "Publications of the Astronomical Society of Japan",
      "year": 2012,
      "month": "Dec",
      "volume": 64,
      "pages": 6
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1186348,
      "adsabs": "2012PASJ...64L...6I"
    }
  }
}