Deep ALMA redshift search of a z ∼12 GLASS-JWST galaxy candidate
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5 from the JWST position of GHZ2/GLASS-z12, that associating it with the [O III] 88 μm
transition, implies a spectroscopic redshift of z = 12.117 ± 0.001. We verify the detection using extensive statistical tests. The oxygen line luminosity places GHZ2/GLASS-z12 above the [O III]-SFR relation for metal-poor galaxies, implying an enhancement of [O III] emission in this system while the JWST-observed emission is likely a lower-metallicity region. The lack of dust emission seen by these observations is consistent with the blue UV slope observed by JWST, which suggest little dust attenuation in galaxies at this early epoch. Further observations will unambiguously confirm the redshift and shed light on the origins of the wide and offset line and physical properties of this early galaxy. This work illustrates the synergy between JWST and ALMA, and paves the way for future spectroscopic surveys of z > 10 galaxy candidates.
Originalsprog | Engelsk |
---|---|
Tidsskrift | Monthly Notices of the Royal Astronomical Society |
Vol/bind | 519 |
Udgave nummer | 4 |
Sider (fra-til) | 5076-5085 |
Antal sider | 10 |
ISSN | 0035-8711 |
DOI | |
Status | Udgivet - 4 mar. 2023 |
Bibliografisk note
Funding Information:
This paper makes use of the following ALMA data: ADS/JAO.ALMA#2021.A.00020.S. ALMA is a partnership of ESO (representing its member states), NSF (USA), and NINS (Japan), together with NRC (Canada), MOST, ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, A UI/NRA O, and NAOJ. This work is partly based on observations made with the N ASA/ESA/CSA J ames Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the As- sociation of Universities for Research in Astronomy, Inc., under N ASA contract N AS 5-03127 for JWST. These observations are associated with programme JWST -ERS-1324. We acknowledge fi- nancial support from NASA through grant JWST-ERS-1324. TB and YT acknowledge funding from NAOJ ALMA Scientific Research Grant Numbers 2018-09B and JSPS KAKENHI No. 17H06130, 22H04939. EV acknowledges financial support through grants PRIN- MIUR 2017WSCC32, 2020SKSTHZ and the INAF GO Grant 2022 'The revolution is around the corner: JWST will probe globular cluster precursors and Population III stellar clusters at cosmic dawn' (PI Vanzella). We thank Stefano Carniani and Stefano Berta for their kind and useful discussions. Finally, we would like to thank the anonymous referee for their insightful comments and suggested additions.
Publisher Copyright:
© 2022 The Author(s).
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