The search for Population III: Confirmation of a HeII emitter with no metal lines at z=10.6
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866917385185787904 |
|---|---|
| author | Maiolino, Roberto Übler, Hannah Perna, Michele Witstok, Joris Jones, Gareth C. Perez-Gonzalez, Pablo G. Nakajima, Kimihiko Rusta, Elka Salvadori, Stefania Tacchella, Sandro Madau, Piero Trussler, James A. A. D'Eugenio, Francesco Ji, Xihan Scholtz, Jan Carniani, Stefano Isobe, Yuki Katz, Harley Arribas, Santiago Baker, William M. Böker, Torsten Bromm, Volker Bunker, Andrew J. Charlot, Stephane Chevallard, Jacopo Curti, Mirko Curtis-Lake, Emma Eisenstein, Daniel Egami, Eiichi Ferrara, Andrea Graziani, Luca Hainline, Kevin Helton, Jakob M. Ivey, Lucy Jonson, Benjamin Koller, Maria Kumari, Nimisha Marconi, Alessandro Mazzolari, Giovanni Laporte, Nicolas Parlanti, Eleonora Pascalau, Robert Pentericci, Laura Rinaldi, Pierluigi Robertson, Brant Del Pino, Bruno Rodríguez Schneider, Raffaella Venditti, Alessandra Venturi, Giacomo Willmer, Christopher N. A. Witten, Callum Zamora, Sandra |
| author_facet | Maiolino, Roberto Übler, Hannah Perna, Michele Witstok, Joris Jones, Gareth C. Perez-Gonzalez, Pablo G. Nakajima, Kimihiko Rusta, Elka Salvadori, Stefania Tacchella, Sandro Madau, Piero Trussler, James A. A. D'Eugenio, Francesco Ji, Xihan Scholtz, Jan Carniani, Stefano Isobe, Yuki Katz, Harley Arribas, Santiago Baker, William M. Böker, Torsten Bromm, Volker Bunker, Andrew J. Charlot, Stephane Chevallard, Jacopo Curti, Mirko Curtis-Lake, Emma Eisenstein, Daniel Egami, Eiichi Ferrara, Andrea Graziani, Luca Hainline, Kevin Helton, Jakob M. Ivey, Lucy Jonson, Benjamin Koller, Maria Kumari, Nimisha Marconi, Alessandro Mazzolari, Giovanni Laporte, Nicolas Parlanti, Eleonora Pascalau, Robert Pentericci, Laura Rinaldi, Pierluigi Robertson, Brant Del Pino, Bruno Rodríguez Schneider, Raffaella Venditti, Alessandra Venturi, Giacomo Willmer, Christopher N. A. Witten, Callum Zamora, Sandra |
| contents | We report the confirmation of a HeII$λ$1640 emitter located at 3 pkpc from the galaxy GN-z11, at z=10.6. The detection, based on JWST NIRSpec-IFU high-resolution spectroscopy, confirms a previous claim based on medium-resolution spectroscopy. The HeII$λ$1640 identification is further supported by the independent detection of H$γ$ obtained by Übler et al. (2026) at the same location. The HeII emission is spectrally resolved in two components separated by 120 km/s. The Equivalent Width of the HeII emission is extremely high ($>$20 A). No metal lines are detected. We argue that Population III stars are the most plausible explanation for the observed He II emission, with no satisfactory alternative from other classes of sources or mechanisms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_20362 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The search for Population III: Confirmation of a HeII emitter with no metal lines at z=10.6 Maiolino, Roberto Übler, Hannah Perna, Michele Witstok, Joris Jones, Gareth C. Perez-Gonzalez, Pablo G. Nakajima, Kimihiko Rusta, Elka Salvadori, Stefania Tacchella, Sandro Madau, Piero Trussler, James A. A. D'Eugenio, Francesco Ji, Xihan Scholtz, Jan Carniani, Stefano Isobe, Yuki Katz, Harley Arribas, Santiago Baker, William M. Böker, Torsten Bromm, Volker Bunker, Andrew J. Charlot, Stephane Chevallard, Jacopo Curti, Mirko Curtis-Lake, Emma Eisenstein, Daniel Egami, Eiichi Ferrara, Andrea Graziani, Luca Hainline, Kevin Helton, Jakob M. Ivey, Lucy Jonson, Benjamin Koller, Maria Kumari, Nimisha Marconi, Alessandro Mazzolari, Giovanni Laporte, Nicolas Parlanti, Eleonora Pascalau, Robert Pentericci, Laura Rinaldi, Pierluigi Robertson, Brant Del Pino, Bruno Rodríguez Schneider, Raffaella Venditti, Alessandra Venturi, Giacomo Willmer, Christopher N. A. Witten, Callum Zamora, Sandra Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics We report the confirmation of a HeII$λ$1640 emitter located at 3 pkpc from the galaxy GN-z11, at z=10.6. The detection, based on JWST NIRSpec-IFU high-resolution spectroscopy, confirms a previous claim based on medium-resolution spectroscopy. The HeII$λ$1640 identification is further supported by the independent detection of H$γ$ obtained by Übler et al. (2026) at the same location. The HeII emission is spectrally resolved in two components separated by 120 km/s. The Equivalent Width of the HeII emission is extremely high ($>$20 A). No metal lines are detected. We argue that Population III stars are the most plausible explanation for the observed He II emission, with no satisfactory alternative from other classes of sources or mechanisms. |
| title | The search for Population III: Confirmation of a HeII emitter with no metal lines at z=10.6 |
| topic | Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2603.20362 |