{
  "annotation_id": "b7ed318d-5a55-41af-aa3d-735f52426c8d",
  "date_created": "2026-03-02T18:01:21.749000Z",
  "date_modified": "2026-03-02T18:01:21.749000Z",
  "file_hash": "315898dd9d708249bb6a4624700472290c91a690176e8dc29e742f2f9120320a",
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  "record": {
    "abstract": "The importance of a teaching a clear definition of the ``observer\u0027\u0027 in\nspecial relativity is highlighted using a simple astrophysical example from the\nexciting current research area of ``Gamma-Ray Burst\u0027\u0027 astrophysics. The example\nshows that a source moving relativistically toward a single observer at rest\nexhibits a time ``contraction\u0027\u0027 rather than a ``dilation\u0027\u0027 because the light\ntravel time between the source and observer decreases with time. Astrophysical\napplications of special relativity complement idealized examples with real\napplications and very effectively exemplify the role of a finite light travel\ntime.",
    "arxiv_id": "physics/9712053",
    "authors": [
      "Eric G. Blackman"
    ],
    "categories": [
      "physics.ed-ph",
      "astro-ph"
    ],
    "doi": "10.1088/0143-0807/19/2/014",
    "journal_ref": "(1998) Eur. Journ. of Phys, 19, 195",
    "title": "Importance of an Astrophysical Perspective for Textbook Relativity",
    "url": "https://arxiv.org/abs/physics/9712053"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "21d900a0-e5c5-4258-ae79-1ce51466b103",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}