{
  "id": "1210.0370",
  "version": "v1",
  "published": "2012-10-01T12:26:45.000Z",
  "updated": "2012-10-01T12:26:45.000Z",
  "title": "Spectroscopic Observations of δSco Through the 2011 Periastron Passage",
  "authors": [
    "Th. Rivinius",
    "S. Štefl",
    "D. Baade",
    "A. C. Carciofi",
    "S. Otero",
    "A. S. Miroshnichenko",
    "N. Manset"
  ],
  "comment": "Presented in \"Circumstellar Dynamics at High Resolution\", Foz do Igua\\c{c}u, Brazil, February 27 - March 02, to appear in 2012, ASP Conf. Series 464, in press",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "We present prelimiary results from a coordinated spectroscopic campaign in 2011, centered on the \\delta Sco periastron passage in July. Data have mostly been obtained with the FEROS/2.2 m at La Silla and ESPaDOnS/CFHT at Mauna Kea echelle instruments. Main results include the absence of tidally induced disturbance to the main \\beta Cephei pulsation mode and the absence of tidally triggered mass-ejection at time of periastron proper. The observed (as far as yet analyzed) variations are compatible with the picture of a disk that is disturbed on its outer radius, with the disturbance propagating inwards after the periastron.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-10-01T12:26:45.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spectroscopic observations",
      "mauna kea echelle instruments",
      "sco periastron passage",
      "cephei pulsation mode",
      "spectroscopic campaign"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1188792,
      "adsabs": "2012ASPC..464..235R"
    }
  }
}