UNCOVER: Illuminating the Early Universe -- JWST/NIRSpec Confirmation of $z > 12$ Galaxies
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2023
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866909065549971456 |
|---|---|
| author | Wang, Bingjie Fujimoto, Seiji Labbe, Ivo Furtak, Lukas J. Miller, Tim B. Setton, David J. Zitrin, Adi Atek, Hakim Bezanson, Rachel Brammer, Gabriel Leja, Joel Oesch, Pascal A. Price, Sedona H. Chemerynska, Iryna Cutler, Sam E. Dayal, Pratika van Dokkum, Pieter Goulding, Andy D. Greene, Jenny E. Fudamoto, Y. Khullar, Gourav Kokorev, Vasily Marchesini, Danilo Pan, Richard Weaver, John R. Whitaker, Katherine E. Williams, Christina C. |
| author_facet | Wang, Bingjie Fujimoto, Seiji Labbe, Ivo Furtak, Lukas J. Miller, Tim B. Setton, David J. Zitrin, Adi Atek, Hakim Bezanson, Rachel Brammer, Gabriel Leja, Joel Oesch, Pascal A. Price, Sedona H. Chemerynska, Iryna Cutler, Sam E. Dayal, Pratika van Dokkum, Pieter Goulding, Andy D. Greene, Jenny E. Fudamoto, Y. Khullar, Gourav Kokorev, Vasily Marchesini, Danilo Pan, Richard Weaver, John R. Whitaker, Katherine E. Williams, Christina C. |
| contents | Observations of high-redshift galaxies provide a critical direct test to the theories of early galaxy formation, yet to date, only three have been spectroscopically confirmed at $z>12$. Due to strong gravitational lensing over a wide area, the galaxy cluster field A2744 is ideal for searching for the earliest galaxies. Here we present JWST/NIRSpec observations of two galaxies: a robust detection at $z_{\rm spec} = 12.393^{+0.004}_{-0.001}$, and a plausible candidate at $z_{\rm spec} = 13.079^{+0.013}_{-0.001}$. The galaxies are discovered in JWST/NIRCam imaging and their distances are inferred with JWST/NIRSpec spectroscopy, all from the JWST Cycle 1 UNCOVER Treasury survey. Detailed stellar population modeling using JWST NIRCam and NIRSpec data corroborates the primeval characteristics of these galaxies: low mass ($\sim 10^8~{\rm M_\odot}$), young, rapidly-assembling, metal-poor, and star-forming. Interestingly, both galaxies are spatially resolved, having lensing-corrected rest-UV effective radii on the order of 300-400 pc, which are notably larger than other spectroscopically confirmed systems at similar redshifts. The observed dynamic range of $z \gtrsim 10$ sizes spans over 1 order of magnitude, implying a significant scatter in the size-mass relation at early times. Deep into the epoch of reionization, these discoveries elucidate the emergence of the first galaxies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_03745 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | UNCOVER: Illuminating the Early Universe -- JWST/NIRSpec Confirmation of $z > 12$ Galaxies Wang, Bingjie Fujimoto, Seiji Labbe, Ivo Furtak, Lukas J. Miller, Tim B. Setton, David J. Zitrin, Adi Atek, Hakim Bezanson, Rachel Brammer, Gabriel Leja, Joel Oesch, Pascal A. Price, Sedona H. Chemerynska, Iryna Cutler, Sam E. Dayal, Pratika van Dokkum, Pieter Goulding, Andy D. Greene, Jenny E. Fudamoto, Y. Khullar, Gourav Kokorev, Vasily Marchesini, Danilo Pan, Richard Weaver, John R. Whitaker, Katherine E. Williams, Christina C. Astrophysics of Galaxies Observations of high-redshift galaxies provide a critical direct test to the theories of early galaxy formation, yet to date, only three have been spectroscopically confirmed at $z>12$. Due to strong gravitational lensing over a wide area, the galaxy cluster field A2744 is ideal for searching for the earliest galaxies. Here we present JWST/NIRSpec observations of two galaxies: a robust detection at $z_{\rm spec} = 12.393^{+0.004}_{-0.001}$, and a plausible candidate at $z_{\rm spec} = 13.079^{+0.013}_{-0.001}$. The galaxies are discovered in JWST/NIRCam imaging and their distances are inferred with JWST/NIRSpec spectroscopy, all from the JWST Cycle 1 UNCOVER Treasury survey. Detailed stellar population modeling using JWST NIRCam and NIRSpec data corroborates the primeval characteristics of these galaxies: low mass ($\sim 10^8~{\rm M_\odot}$), young, rapidly-assembling, metal-poor, and star-forming. Interestingly, both galaxies are spatially resolved, having lensing-corrected rest-UV effective radii on the order of 300-400 pc, which are notably larger than other spectroscopically confirmed systems at similar redshifts. The observed dynamic range of $z \gtrsim 10$ sizes spans over 1 order of magnitude, implying a significant scatter in the size-mass relation at early times. Deep into the epoch of reionization, these discoveries elucidate the emergence of the first galaxies. |
| title | UNCOVER: Illuminating the Early Universe -- JWST/NIRSpec Confirmation of $z > 12$ Galaxies |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2308.03745 |