{
  "annotation_id": "cd3468e7-ad5a-4090-917d-1212868f22ef",
  "date_created": "2026-03-02T18:00:28.094000Z",
  "date_modified": "2026-03-02T18:00:28.094000Z",
  "file_hash": "1a7fbac606ade08980e713b7575a1f6cd52008034afabb673c557165a51b5972",
  "private": false,
  "record": {
    "abstract": "Recent developments in neutron star theory and observation are discussed.\nBased on modern nucleon-nucleon potentials more reliable equations of state for\ndense nuclear matter have been constructed. Furthermore, phase transitions such\nas pion, kaon and hyperon condensation, superfluidity and quark matter can\noccur in cores of neutron stars. Specifically, the nuclear to quark matter\nphase transition and its mixed phases with intriguing structures is treated.\nRotating neutron stars with and without phase transitions are discussed and\ncompared to observed masses, radii and glitches. The observations of possible\nheavy $\\sim 2M_\\odot$ neutron stars in X-ray binaries and QPO\u0027s require\nrelatively stiff equation of states and restrict strong phase transitions to\noccur at very high nuclear densities only.",
    "arxiv_id": "nucl-th/9912002",
    "authors": [
      "H. Heiselberg"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1142/S0217979201006008",
    "journal_ref": "Int.J.Mod.Phys.B15:1519-1534,2001",
    "title": "Neutron Stars: Recent Developments",
    "url": "https://arxiv.org/abs/nucl-th/9912002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ba122dea-56b2-419c-941b-1c8cb295ca93",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}