{
  "id": "2406.13554",
  "version": "v1",
  "published": "2024-06-19T13:44:52.000Z",
  "updated": "2024-06-19T13:44:52.000Z",
  "title": "The emergence of the Star Formation Main Sequence with redshift unfolded by JWST",
  "authors": [
    "P. Rinaldi",
    "R. Navarro-Carrera",
    "K. I. Caputi",
    "E. Iani",
    "G. Ostlin",
    "L. Colina",
    "S. Alberts",
    "J. Alvarez-Marquez",
    "M. Annunziatella",
    "L. Boogaard",
    "L. Costantin",
    "J. Hjorth",
    "D. Langeroodi",
    "J. Melinder",
    "T. Moutard",
    "F. Walter"
  ],
  "comment": "15 pages, 4 figures. Submitted to ApJ",
  "categories": [
    "astro-ph.GA",
    "astro-ph.CO"
  ],
  "abstract": "We investigate the correlation between stellar mass (M*) and star formation rate (SFR) across the stellar mass range log10(M*/Msun)~6-11. We consider almost 50,000 star-forming galaxies at z~3-7, leveraging data from COSMOS/SMUVS, JADES/GOODS-SOUTH, and MIDIS/XDF. This is the first study spanning such a wide stellar mass range without relying on gravitational lensing effects. We locate our galaxies on the SFR-M* plane to assess how the location of galaxies in the star-formation main sequence (MS) and starburst (SB) region evolves with stellar mass and redshift. We find that the two star-forming modes tend to converge at log10(M*/Msun) < 7, with all galaxies found in the SB mode. By dissecting our galaxy sample in stellar mass and redshift, we show that the emergence of the star-formation MS is stellar-mass dependent: while in galaxies with log10(M*/Msun) > 9 the MS is already well in place at z = 5-7, for galaxies with log10(M*/Msun)~7-8 it only becomes significant at z<4. Overall, our results are in line with previous findings that the SB mode dominates amongst low stellar-mass galaxies. The earlier emergence of the MS for massive galaxies is consistent with galaxy downsizing.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-06-19T13:44:52.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "star formation main sequence",
      "wide stellar mass range",
      "star-formation main sequence",
      "star formation rate",
      "low stellar-mass galaxies"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}