{
  "abstract": "Gliese 48 is an M3.5V red dwarf exhibiting significant magnetic activity and a stellar rotation period of 51.5 d. In this work, we present a systematic re-analysis of radial velocities (RV) from CARMENES and decade-long HIRES observations, integrated with TESS space-based photometry. We identify a planet of undetermined composition, Gliese 48 b, with an orbital period $P = 39.6299 \\pm 0.29$ d and a minimum mass $M \\sin i = 8.11 \\pm 1.63 M_{\\oplus}$. The planetary nature of the signal is confirmed by its temporal coherence over a 15-year baseline and its achromaticity between visible and near-infrared channels. TESS photometry from Sectors 18, 19, 24, and 25 (218.6 d total baseline, 66,983 cadences) reveals no transit at $P = 39.63$ d (FAP $> 10\\%$, BLS). An injection-and-recovery test demonstrates that a 1287 ppm transit signal corresponding to a minimum-radius $1.69 R_{\\oplus}$ planet would have been detected with Signal-to-Pink-Noise Ratio SPNR $> 7$, ruling out a transiting geometry with high confidence. The orbital inclination is constrained to $i < 89.3^{\\circ}$. With an incident stellar flux $S_{\\rm eff} \\approx 0.889 S_{\\oplus}$ and bolometric luminosity $L_* = 0.0273 \\pm 0.0023 L_{\\odot}$, Gliese 48 b lies near the inner edge of the Conservative Habitable Zone and within the Optimistic HZ, making it one of the most astrobiologically compelling temperate Super-Earths orbiting an M-dwarf.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: OPEN EUROPEAN JOURNAL ON VARIABLE STARS, 2026",
  "arxiv": "2605.11123",
  "author_total": 3,
  "authors": [
    {
      "name": "G. Conzo"
    },
    {
      "name": "M. Moriconi"
    },
    {
      "name": "S. A. Corrêa Jr"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cd4we6s7c6z8r.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.11123",
  "fulltext_url": null,
  "id": "cd4we6s7c6z8r",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.11123",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.EP"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2605.11123",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cd4we6s7c6z8r.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:22Z",
      "native_id": "2605.11123",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.11123"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.EP",
      "subfield": "planetary"
    }
  ],
  "title": "Detection and characterization of the temperate super-earth Gliese 48 b",
  "title_text": "Detection and characterization of the temperate super-earth Gliese 48 b",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:44Z",
  "url": "https://research.draconitic.com/paper/cd4we6s7c6z8r",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.5817/oejv2026-0273",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}