Spider-Webb: <i>JWST</i> Near Infrared Camera resolved galaxy star formation and nuclear activities in the Spiderweb protocluster at <i>z</i> = 2.16
ABSTRACT Near-infrared (NIR) emission is less affected by dust than ultraviolet and optical emission and is therefore useful for studying the properties of dust-obscured galaxies. Although rest-frame NIR observations of high-redshift galaxies have long been made using space telescopes, their structures were unresolved due to the lack of angular resolution. This letter reports the early results from the analysis of high-resolution Pa$\beta$ imaging of the Spiderweb protocluster at $z=2.16$ with the JWST Near Infrared Camera. We investigate radial profiles of Pa$\beta$ lines and rest-frame NIR continua from luminous H $\alpha$-emitting galaxies (HAEs) in the protocluster. Particularly, we compare those of 11 HAEs (N-HAEs) on the star-forming main sequence with those of 8 HAEs (X-HAEs) with X-ray active galactic nuclei (AGNs). Resultant composite Pa$\beta$ line images of N-HAEs indicate significant star formation in galactic discs. In contrast, X-HAEs are dominated by point source components rather than outer star formation, as inferred from our earlier work based on multiwavelength spectral energy distribution fitting. Given their higher stellar potentials suggested from their rest-frame NIR images, the different characteristics may be driven by the impact of AGN feedback.
Authors
- H. J. A. Röttgering (ORCID: https://orcid.org/0000-0001-8887-2257)
- Abdurrahman Naufal (ORCID: https://orcid.org/0000-0001-7713-0434)
- Ichi Tanaka (ORCID: https://orcid.org/0000-0002-4937-4738)
- Rhythm Shimakawa (ORCID: https://orcid.org/0000-0003-4442-2750)
- Tadayuki Kodama (ORCID: https://orcid.org/0000-0002-2993-1576)
- Yuheng Zhang (ORCID: https://orcid.org/0000-0001-5757-5719)
- Kazuki Daikuhara (ORCID: https://orcid.org/0000-0002-9509-2774)
- Chiara D’Eugenio (ORCID: https://orcid.org/0000-0001-7344-3126)
- H. Dannerbauer (ORCID: https://orcid.org/0000-0001-7147-3575)
- Yusei Koyama (ORCID: https://orcid.org/0000-0002-0479-3699)
- José Manuel Pérez-Martínez (ORCID: https://orcid.org/0000-0002-5963-6850)
Institutions
- Leiden University (NL)
- University of Science and Technology of China (CN)
- Waseda University (JP)
- Universidad de La Laguna (ES)
- National Institutes of Natural Sciences (JP)
- The Graduate University for Advanced Studies, SOKENDAI (JP)
- Tohoku University (JP)
- Czech Academy of Sciences, Astronomical Institute (CZ)
- Purple Mountain Observatory (CN)
- Instituto de Astrofísica de Canarias (ES)
- National Astronomical Observatory of Japan (JP)
Publication Details
- Journal
- Monthly Notices of the Royal Astronomical Society Letters
- Published
- 2024-11-28
- DOI
- https://doi.org/10.1093/mnrasl/slae098
- Citations
- 3
- Primary Topic
- Galaxies: Formation, Evolution, Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.99
Funders
- National Science Foundation
- National Aeronautics and Space Administration
- Space Telescope Science Institute
- Ministerio de Ciencia, Innovación y Universidades
- European Commission
- Ministry of Education, Culture, Sports, Science and Technology
- Government of Jiangsu Province
- Waseda University
- China Scholarship Council
- Ministerio de Ciencia e Innovación
- Japan Society for the Promotion of Science
- European Regional Development Fund
- Agencia Estatal de Investigación