{
  "id": "2204.06061",
  "version": "v1",
  "published": "2022-04-12T19:47:40.000Z",
  "updated": "2022-04-12T19:47:40.000Z",
  "title": "Measuring Optical Extinction Towards Young Stellar Objects Using Diffuse Interstellar Bands",
  "authors": [
    "Adolfo S. Carvalho",
    "Lynne A. Hillenbrand"
  ],
  "comment": "35 pages, 15 figures, submitted to ApJ",
  "categories": [
    "astro-ph.SR",
    "astro-ph.GA"
  ],
  "abstract": "Line-of-sight extinction estimates to well-studied young T Tauri and Herbig Ae/Be stars are based on many different measurements and analysis methods. This has resulted in wide scatter among the published $A_V$ values for the same star. In this work, we discuss the challenges in measuring extinction to actively accreting and especially outbursting young stellar objects (YSOs), and explore a method not previously applied to young stars, utilizing diffuse interstellar bands (DIBs). In early-type stars, narrow correlations exist between DIB equivalent widths and the column density of interstellar material, and therefore the line-of-sight extinction. Here, we measure equivalent widths of the 5780 \\AA\\ and 6614 \\AA\\ DIB features in a sample of actively accreting YSOs, and apply established DIB--reddening calibrations to derive reddening, and subsequently extinction. We also compare the DIBs-inferred optical line-of-sight extinction values with previous extinction estimates for our sample stars.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-04-12T19:47:40.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "diffuse interstellar bands",
      "young stellar objects",
      "measuring optical extinction",
      "optical line-of-sight extinction values",
      "extinction estimates"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 35,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}