{
  "id": "1808.06053",
  "version": "v1",
  "published": "2018-08-18T07:53:37.000Z",
  "updated": "2018-08-18T07:53:37.000Z",
  "title": "Long-term evolution of RRAT J1819-1458",
  "authors": [
    "Ali Arda Gencali",
    "Unal Ertan"
  ],
  "comment": "6 pages, 2 figures, Accepted for publication in MNRAS",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "At present, J1819-1458 is the only rotating radio transient (RRAT) detected in X-rays. We have studied the long-term evolution of this source in the fallback disc model. The model can reproduce the period, period derivative and X-ray luminosity of J1819-1458 simultaneously in the accretion phase at ages $\\sim 2 \\times 10^5$ yr. We obtained reasonable model curves with a magnetic dipole field strength $B_0 \\sim 5 \\times 10^{11}$ G on the pole of the neutron star, which is much weaker than the field inferred from the dipole-torque formula. With this $B_0$ and the measured period, we find J1819-1458 below and close to the radio pulsar death line. Our results are not sensitive to initial period, and the source properties can be produced with a large range of disc masses. Our simulations indicate that J1819-1458 is evolving towards the properties of dim isolated neutron stars at later phases of evolution. This implies a close evolutionary link between RRATs and dim isolated neutron stars. For other RRATs with measured period derivatives and unknown X-ray luminosities, we have estimated the lower limits on the $B_0$ values in the fallback disc model. These limits allow a dipole field distribution for RRATs that could fill the $B_0$ gap between the estimated $B_0$ ranges of dim thermal isolated neutron stars and central compact objects in the same model.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-08-18T07:53:37.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "long-term evolution",
      "dim isolated neutron stars",
      "fallback disc model",
      "radio pulsar death line",
      "dim thermal isolated neutron stars"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}