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    "id": "gezari-ps1-10jh-tidal-flare-2012",
    "title": "A well-observed ultraviolet and optical tidal-disruption candidate",
    "summary": "Pan-STARRS and GALEX observed the rise and decay of PS1-10jh, a luminous ultraviolet and optical transient near the nucleus of a galaxy at redshift 0.1696. Follow-up spectroscopy showed broad ionized-helium emission without detected Balmer lines. The discovery team interpreted the light curve and line spectrum as a stellar tidal disruption; a later simulation-based analysis showed how a near-solar-composition star could also be consistent with the same observed data under a different emission model.",
    "boundary": "The tidal-disruption interpretation and the identity and composition of the disrupted star are inferences, not direct images of the disruption. The helium-rich core conclusion depends on line-emission assumptions; the alternative near-solar model also assumes a specific reprocessing geometry, simplified gas physics and disk-line scaling. Its simulations and fits reuse the original event data and do not independently observe a second event. The fitted disruption time, black-hole mass and stellar properties depend on the adopted stellar, accretion and radiation models. Chandra reported an X-ray upper limit, not a source detection. A 2015 photoionization analysis disputed the near-solar interpretation and favored helium-rich gas, but explicitly reported substantial numerical nonconvergence in parts of the high-density/high-flux regime and limitations of stationary-gas treatment. These differing models do not settle the source composition.",
    "area": "Observational astrophysics",
    "topic": "Physics",
    "year": 2012,
    "lane": "HUMAN",
    "result": "EMPIRICAL",
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      "Linda E. Strubbe",
      "Norman Murray"
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        "title": "An ultraviolet-optical flare from the tidal disruption of a helium-rich stellar core",
        "url": "https://arxiv.org/pdf/1205.0252v1",
        "date": "2012-05-01"
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        "id": "guillochon-ps1-10jh-near-solar-model-2013-v1",
        "title": "PS1-10jh: The disruption of a main-sequence star of near-solar composition",
        "url": "https://arxiv.org/pdf/1304.6397v1",
        "date": "2013-04-23"
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        "id": "strubbe-murray-ps1-10jh-photoionization-2015-v1",
        "title": "Insights into Tidal Disruption of Stars from PS1-10jh",
        "url": "https://arxiv.org/pdf/1509.04277v1",
        "date": "2015-09-14"
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      "scope": "Pan-STARRS and GALEX observed the rise and decay of PS1-10jh, a luminous ultraviolet and optical transient near the nucleus of a galaxy at redshift 0.1696. Follow-up spectroscopy showed broad ionized-helium emission without detected Balmer lines. The discovery team interpreted the light curve and line spectrum as a stellar tidal disruption; a later simulation-based analysis showed how a near-solar-composition star could also be consistent with the same observed data under a different emission model. The tidal-disruption interpretation and the identity and composition of the disrupted star are inferences, not direct images of the disruption. The helium-rich core conclusion depends on line-emission assumptions; the alternative near-solar model also assumes a specific reprocessing geometry, simplified gas physics and disk-line scaling. Its simulations and fits reuse the original event data and do not independently observe a second event. The fitted disruption time, black-hole mass and stellar properties depend on the adopted stellar, accretion and radiation models. Chandra reported an X-ray upper limit, not a source detection. A 2015 photoionization analysis disputed the near-solar interpretation and favored helium-rich gas, but explicitly reported substantial numerical nonconvergence in parts of the high-density/high-flux regime and limitations of stationary-gas treatment. These differing models do not settle the source composition.",
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          "name": "S. Gezari",
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            "citation": "An ultraviolet-optical flare from the tidal disruption of a helium-rich stellar core",
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          "name": "James Guillochon",
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            "citation": "PS1-10jh: The disruption of a main-sequence star of near-solar composition",
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          "name": "Haik Manukian",
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            "citation": "PS1-10jh: The disruption of a main-sequence star of near-solar composition",
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          "name": "Enrico Ramirez-Ruiz",
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            "citation": "PS1-10jh: The disruption of a main-sequence star of near-solar composition",
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          "name": "Linda E. Strubbe",
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            "citation": "Insights into Tidal Disruption of Stars from PS1-10jh",
            "url": "https://arxiv.org/pdf/1509.04277v1"
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          "name": "Norman Murray",
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            "citation": "Insights into Tidal Disruption of Stars from PS1-10jh",
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      "scope": {
        "description": "The tidal-disruption interpretation and the identity and composition of the disrupted star are inferences, not direct images of the disruption. The helium-rich core conclusion depends on line-emission assumptions; the alternative near-solar model also assumes a specific reprocessing geometry, simplified gas physics and disk-line scaling. Its simulations and fits reuse the original event data and do not independently observe a second event. The fitted disruption time, black-hole mass and stellar properties depend on the adopted stellar, accretion and radiation models. Chandra reported an X-ray upper limit, not a source detection. A 2015 photoionization analysis disputed the near-solar interpretation and favored helium-rich gas, but explicitly reported substantial numerical nonconvergence in parts of the high-density/high-flux regime and limitations of stationary-gas treatment. These differing models do not settle the source composition.",
        "domain": "Observational astrophysics"
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      "sources": [
        {
          "citation": "An ultraviolet-optical flare from the tidal disruption of a helium-rich stellar core",
          "url": "https://arxiv.org/pdf/1205.0252v1"
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        {
          "citation": "PS1-10jh: The disruption of a main-sequence star of near-solar composition",
          "url": "https://arxiv.org/pdf/1304.6397v1"
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          "citation": "Insights into Tidal Disruption of Stars from PS1-10jh",
          "url": "https://arxiv.org/pdf/1509.04277v1"
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      "statement": "# A well-observed ultraviolet and optical tidal-disruption candidate\n\nPan-STARRS and GALEX observed the rise and decay of PS1-10jh, a luminous ultraviolet and optical transient near the nucleus of a galaxy at redshift 0.1696. Follow-up spectroscopy showed broad ionized-helium emission without detected Balmer lines. The discovery team interpreted the light curve and line spectrum as a stellar tidal disruption; a later simulation-based analysis showed how a near-solar-composition star could also be consistent with the same observed data under a different emission model.\n\n## Scientific scope\n\nThe tidal-disruption interpretation and the identity and composition of the disrupted star are inferences, not direct images of the disruption. The helium-rich core conclusion depends on line-emission assumptions; the alternative near-solar model also assumes a specific reprocessing geometry, simplified gas physics and disk-line scaling. Its simulations and fits reuse the original event data and do not independently observe a second event. The fitted disruption time, black-hole mass and stellar properties depend on the adopted stellar, accretion and radiation models. Chandra reported an X-ray upper limit, not a source detection. A 2015 photoionization analysis disputed the near-solar interpretation and favored helium-rich gas, but explicitly reported substantial numerical nonconvergence in parts of the high-density/high-flux regime and limitations of stationary-gas treatment. These differing models do not settle the source composition.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nS. Gezari; R. Chornock; A. Rest; James Guillochon; Haik Manukian; Enrico Ramirez-Ruiz; Linda E. Strubbe; Norman Murray\n\nThese are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.\n\n\n\n## Original sources\n\n- [An ultraviolet-optical flare from the tidal disruption of a helium-rich stellar core](https://arxiv.org/pdf/1205.0252v1)\n- [PS1-10jh: The disruption of a main-sequence star of near-solar composition](https://arxiv.org/pdf/1304.6397v1)\n- [Insights into Tidal Disruption of Stars from PS1-10jh](https://arxiv.org/pdf/1509.04277v1)\n",
      "summary": "Pan-STARRS and GALEX observed the rise and decay of PS1-10jh, a luminous ultraviolet and optical transient near the nucleus of a galaxy at redshift 0.1696. Follow-up spectroscopy showed broad ionized-helium emission without detected Balmer lines. The discovery team interpreted the light curve and line spectrum as a stellar tidal disruption; a later simulation-based analysis showed how a near-solar-composition star could also be consistent with the same observed data under a different emission model.",
      "title": "A well-observed ultraviolet and optical tidal-disruption candidate"
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    "id": "gezari-ps1-10jh-tidal-flare-2012",
    "entry_id": "gezari-ps1-10jh-tidal-flare-2012",
    "revision": 1,
    "title": "A well-observed ultraviolet and optical tidal-disruption candidate",
    "context": "Observational astrophysics",
    "track": "Source-reported experimental result or reusable measurement method",
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    "what_changed": "Pan-STARRS and GALEX observed the rise and decay of PS1-10jh, a luminous ultraviolet and optical transient near the nucleus of a galaxy at redshift 0.1696. Follow-up spectroscopy showed broad ionized-helium emission without detected Balmer lines. The discovery team interpreted the light curve and line spectrum as a stellar tidal disruption; a later simulation-based analysis showed how a near-solar-composition star could also be consistent with the same observed data under a different emission model.",
    "scope": "Pan-STARRS and GALEX observed the rise and decay of PS1-10jh, a luminous ultraviolet and optical transient near the nucleus of a galaxy at redshift 0.1696. Follow-up spectroscopy showed broad ionized-helium emission without detected Balmer lines. The discovery team interpreted the light curve and line spectrum as a stellar tidal disruption; a later simulation-based analysis showed how a near-solar-composition star could also be consistent with the same observed data under a different emission model. The tidal-disruption interpretation and the identity and composition of the disrupted star are inferences, not direct images of the disruption. The helium-rich core conclusion depends on line-emission assumptions; the alternative near-solar model also assumes a specific reprocessing geometry, simplified gas physics and disk-line scaling. Its simulations and fits reuse the original event data and do not independently observe a second event. The fitted disruption time, black-hole mass and stellar properties depend on the adopted stellar, accretion and radiation models. Chandra reported an X-ray upper limit, not a source detection. A 2015 photoionization analysis disputed the near-solar interpretation and favored helium-rich gas, but explicitly reported substantial numerical nonconvergence in parts of the high-density/high-flux regime and limitations of stationary-gas treatment. These differing models do not settle the source composition.",
    "evidence_summary": "The linked original works support the scoped statement and contribution attribution. WRS has not independently replayed experiments or reconstructed a full mathematical proof. The tidal-disruption interpretation and the identity and composition of the disrupted star are inferences, not direct images of the disruption. The helium-rich core conclusion depends on line-emission assumptions; the alternative near-solar model also assumes a specific reprocessing geometry, simplified gas physics and disk-line scaling. Its simulations and fits reuse the original event data and do not independently observe a second event. The fitted disruption time, black-hole mass and stellar properties depend on the adopted stellar, accretion and radiation models. Chandra reported an X-ray upper limit, not a source detection. A 2015 photoionization analysis disputed the near-solar interpretation and favored helium-rich gas, but explicitly reported substantial numerical nonconvergence in parts of the high-density/high-flux regime and limitations of stationary-gas treatment. These differing models do not settle the source composition.",
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        "title": "An ultraviolet-optical flare from the tidal disruption of a helium-rich stellar core",
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        "locator": "Original scoped contribution, statement/method and evidence limits; source-specific attribution retained."
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