{
  "id": "2408.03136",
  "version": "v1",
  "published": "2024-08-06T12:23:58.000Z",
  "updated": "2024-08-06T12:23:58.000Z",
  "title": "A Dust-Scattering Model for M1-92: A Revised Estimate of the Mass Distribution and Inclination",
  "authors": [
    "Yun Qi Li",
    "Mark R. Morris",
    "Raghvendra Sahai"
  ],
  "comment": "21 pages, 8 figures, accepted for publications in Galaxies",
  "journal": "Galaxies 2024, 12(4), 44",
  "doi": "10.3390/galaxies12040044",
  "categories": [
    "astro-ph.SR",
    "astro-ph.GA"
  ],
  "abstract": "Preplanetary nebulae (PPNe) are formed from mass-ejecting late-stage AGB stars. Much of the light from the star gets scattered or absorbed by dust particles, giving rise to the observed reflection nebula seen at visible and near-IR wavelengths. Precursors to planetary nebulae (PNe), PPNe generally have not yet undergone any ionization by UV radiation from the still-buried stellar core. Bipolar PPNe are a common form of observed PPNe. This study lays the groundwork for future dynamical studies by reconstructing the dust density distribution of a particularly symmetric bipolar PPN, M1-92 (Minkowski's Footprint, IRAS 19343$+$2926). For this purpose, we develop an efficient single-scattering radiative transfer model with corrections for double-scattering. Using a V-band image from the Hubble Space Telescope (HST), we infer the dust density profile and orientation of M1-92. These results indicate that M1-92's slowly expanding equatorial torus exhibits an outer radial cutoff in its density, which implicates the influence of a binary companion during the formation of the nebula.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-08-06T12:23:58.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "mass distribution",
      "dust-scattering model",
      "revised estimate",
      "single-scattering radiative transfer model",
      "inclination"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 21,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}