Detection of [OIII]88$μ$m in JADES-GS-z14-0 at z=14.1793
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2024
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| author | Schouws, Sander Bouwens, Rychard J. Ormerod, Katherine Smit, Renske Algera, Hiddo Sommovigo, Laura Hodge, Jacqueline Ferrara, Andrea Oesch, Pascal A. Rowland, Lucie E. van Leeuwen, Ivana Stefanon, Mauro Herard-Demanche, Thomas Fudamoto, Yoshinobu Röttgering, Huub van der Werf, Paul |
| author_facet | Schouws, Sander Bouwens, Rychard J. Ormerod, Katherine Smit, Renske Algera, Hiddo Sommovigo, Laura Hodge, Jacqueline Ferrara, Andrea Oesch, Pascal A. Rowland, Lucie E. van Leeuwen, Ivana Stefanon, Mauro Herard-Demanche, Thomas Fudamoto, Yoshinobu Röttgering, Huub van der Werf, Paul |
| contents | We report the first successful ALMA follow-up observations of a secure $z > 10$ JWST-selected galaxy, by robustly detecting ($6.6σ$) the [OIII]$_{88μm}\,$ line in JADES-GS-z14-0 (hereafter GS-z14). The ALMA detection yields a spectroscopic redshift of $z=14.1793\pm0.0007$, and increases the precision on the prior redshift measurement of $z=14.32_{-0.20}^{+0.08}$ from NIRSpec by $\gtrsim$180$\times$. Moreover, the redshift is consistent with that previously determined from a tentative detection ($3.6σ$) of CIII]$_{1907,1909}$ ($z=14.178\pm0.013$), solidifying the redshift determination via multiple line detections. We measure a line luminosity of $L_\mathrm{[OIII]88} = (2.1 \pm 0.5)\times10^8\,L_\odot$, placing GS-z14 at the lower end, but within the scatter of, the local $L_\mathrm{[OIII]88}$-star formation rate relation. No dust continuum from GS-z14 is detected, suggesting an upper limit on the dust-to-stellar mass ratio of $< 2 \times 10^{-3}$, consistent with dust production from supernovae with a yield $y_d < 0.3\,M_\odot$. Combining a previous JWST/MIRI photometric measurement of the [OIII]$λλ$4959,5007$\mathrm{\mathring{A}}$ and H$β$ lines with Cloudy models, we find GS-z14 to be surprisingly metal-enriched ($Z\sim0.05 - 0.2\,Z_\odot$) a mere $300\,\mathrm{Myr}$ after the Big Bang. The detection of a bright oxygen line in GS-z14 thus reinforces the notion that galaxies in the early Universe undergo rapid evolution. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_20549 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Detection of [OIII]88$μ$m in JADES-GS-z14-0 at z=14.1793 Schouws, Sander Bouwens, Rychard J. Ormerod, Katherine Smit, Renske Algera, Hiddo Sommovigo, Laura Hodge, Jacqueline Ferrara, Andrea Oesch, Pascal A. Rowland, Lucie E. van Leeuwen, Ivana Stefanon, Mauro Herard-Demanche, Thomas Fudamoto, Yoshinobu Röttgering, Huub van der Werf, Paul Astrophysics of Galaxies We report the first successful ALMA follow-up observations of a secure $z > 10$ JWST-selected galaxy, by robustly detecting ($6.6σ$) the [OIII]$_{88μm}\,$ line in JADES-GS-z14-0 (hereafter GS-z14). The ALMA detection yields a spectroscopic redshift of $z=14.1793\pm0.0007$, and increases the precision on the prior redshift measurement of $z=14.32_{-0.20}^{+0.08}$ from NIRSpec by $\gtrsim$180$\times$. Moreover, the redshift is consistent with that previously determined from a tentative detection ($3.6σ$) of CIII]$_{1907,1909}$ ($z=14.178\pm0.013$), solidifying the redshift determination via multiple line detections. We measure a line luminosity of $L_\mathrm{[OIII]88} = (2.1 \pm 0.5)\times10^8\,L_\odot$, placing GS-z14 at the lower end, but within the scatter of, the local $L_\mathrm{[OIII]88}$-star formation rate relation. No dust continuum from GS-z14 is detected, suggesting an upper limit on the dust-to-stellar mass ratio of $< 2 \times 10^{-3}$, consistent with dust production from supernovae with a yield $y_d < 0.3\,M_\odot$. Combining a previous JWST/MIRI photometric measurement of the [OIII]$λλ$4959,5007$\mathrm{\mathring{A}}$ and H$β$ lines with Cloudy models, we find GS-z14 to be surprisingly metal-enriched ($Z\sim0.05 - 0.2\,Z_\odot$) a mere $300\,\mathrm{Myr}$ after the Big Bang. The detection of a bright oxygen line in GS-z14 thus reinforces the notion that galaxies in the early Universe undergo rapid evolution. |
| title | Detection of [OIII]88$μ$m in JADES-GS-z14-0 at z=14.1793 |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2409.20549 |