{
  "abstract": "We present the first simultaneous XRISM and NuSTAR observations of the neutron star low-mass X-ray binary (LXMB) Serpens X-1. We perform spectral modeling on the joint observations of XRISM/Resolve, XRISM/Xtend, and NuSTAR, testing Comptonization and double thermal continuum model prescriptions. We find that a hybrid double thermal model adequately describes the underlying continuum of the source, while the Comptonization models predict largely unphysical parameter values. We perform reflection modeling and confirm with tight constraints an inclination of 5 ∘ ± 1 ∘ and an inner disk radius of 6.6 ± 0.6 R g for the source. We show that the spectral resolution of XRISM/Resolve allows for the determination of a unique inner disk radius, which has the potential to constrain neutron star spin in other systems. We discuss discrepancies in spectral shape between XRISM/Resolve and NuSTAR above ∼8 keV. We also present light-curve and spectral analyses of eight Type I X-ray bursts that occurred during the observations.",
  "abstract_shown": true,
  "affiliations": [
    "Wayne State University",
    "University of Michigan",
    "California Institute of Technology",
    "NASA Goddard Space Flight Center"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "H. Hall",
      "orcid": "0009-0000-4409-7914"
    },
    {
      "affs": [
        0
      ],
      "name": "R. M. Ludlam",
      "orcid": "0000-0002-8961-939X"
    },
    {
      "affs": [
        0
      ],
      "name": "E. Cackett",
      "orcid": "0000-0002-8294-9281"
    },
    {
      "affs": [
        1
      ],
      "name": "J. M. Miller",
      "orcid": "0000-0003-2869-7682"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "J. A. García",
      "orcid": "0000-0003-3828-2448"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/66qbqw9h8p9ga.bib",
  "cited_by": 0,
  "doi": "10.3847/1538-4357/aea28b",
  "fulltext_url": null,
  "id": "66qbqw9h8p9ga",
  "issns": [
    "0004-637X",
    "1538-4357"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea28b",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3103|Astrophysical Phenomena and Observations"
    ]
  ],
  "openalex": "W7212054338",
  "pdf_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea28b/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-05",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/66qbqw9h8p9ga.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:11Z",
      "native_id": "10.3847/1538-4357/aea28b",
      "source": "crossref",
      "url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea28b"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "journal-openalex:3103|Stellar, planetary, and galactic studies",
      "subfield": "stellar"
    }
  ],
  "title": "Resolving Structure within the Iron Line Profile of Serpens X-1 with XRISM and NuSTAR",
  "title_text": "Resolving Structure within the Iron Line Profile of Serpens X-1 with XRISM and NuSTAR",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:11Z",
  "url": "https://research.draconitic.com/paper/66qbqw9h8p9ga",
  "venue": "The Astrophysical Journal",
  "versions": []
}