{
  "id": "2203.15581",
  "version": "v1",
  "published": "2022-03-29T14:00:01.000Z",
  "updated": "2022-03-29T14:00:01.000Z",
  "title": "Accretion and Outflows in Young Stars with CUBES",
  "authors": [
    "J. M. Alcalá",
    "G. Cupani",
    "C. J. Evans",
    "M. Franchini",
    "B. Nisini"
  ],
  "journal": "Experimental Astronomy, 2022, Special Issue: Science with the Cassegrain U-Band Efficient Spectrograph (CUBES)",
  "doi": "10.1007/s10686-022-09832-1",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "The science case on studies of accretion and outflows in low-mass ($<$1.5 $M_{\\odot}$) young stellar objects (YSOs) with the new CUBES instrument is presented. We show the need for a high-sensitivity, near-ultraviolet (NUV) spectrograph like CUBES, with a resolving power at least four times that of X-Shooter and combined with UVES via a fibrelink for simultaneous observations. Simulations with the CUBES exposure time calculator and the end-to-end software show that a significant gain in signal-to -noise can be achieved compared to current instruments, for both the spectral continuum and emission lines, including for relatively embedded YSOs. Our simulations also show that the low-resolution mode of CUBES will be able to observe much fainter YSOs (V $\\sim$22 mag) in the NUV than we can today, allowing us extend studies to YSOs with background-limited magnitudes. The performance of CUBES in terms of sensitivity in the NUV will provide important new insights into the evolution of circumstellar disks, by studying the accretion, jets/winds and photo-evaporation processes, down to the low-mass brown dwarf regime. CUBES will also open-up new science as it will be able to observe targets that are several magnitudes fainter than those reachable with current instruments, facilitating studies of YSOs at distances of $\\sim$ kpc scale. This means a step-change in the field of low-mass star formation, as it will be possible to expand the science case from relatively local star-forming regions to a large swathe of distances within the Milky Way.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-03-29T14:00:01.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "young stars",
      "current instruments",
      "science case",
      "cubes exposure time calculator",
      "low-mass brown dwarf regime"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Springer"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}