%0 Generic %1 castellano2022early %A Castellano, Marco %A Fontana, Adriano %A Treu, Tommaso %A Santini, Paola %A Merlin, Emiliano %A Leethochawalit, Nicha %A Trenti, Michele %A Mestric, Uros %A Vanzella, Eros %A Bonchi, Andrea %A Belfiori, Davide %A Nonino, Mario %A Paris, Diego %A Polenta, Gianluca %A Roberts-Borsani, Guido %A Boyett, Kristan %A Calabro, Antonello %A Glazebrook, Karl %A Grillo, Claudio %A Mascia, Sara %A Mason, Charlotte %A Mercurio, Amata %A Morishita, Takahiro %A Nanayakkara, Themiya %A Pentericci, Laura %A Rosati, Piero %A Vulcani, Benedetta %A Wang, Xin %A Yang, Lilan %D 2022 %K library %T Early results from GLASS-JWST. III: Galaxy candidates at z$\sim$9-15 %U http://arxiv.org/abs/2207.09436 %X We present the results of a first search for galaxy candidates at z$\sim$9--15 on deep seven-bands NIRCam imaging acquired as part of the GLASS-JWST Early Release Science Program on a flanking field of the Frontier Fields cluster A2744. Candidates are selected via two different renditions of the Lyman-break technique, isolating objects at z$\sim$9-11, and z$\sim$9-15, respectively, supplemented by photometric redshifts obtained with two independent codes. We find six color-selected candidates at z$>$9, plus one additional candidate with photometric redshift z$_phot\geq$9. In particular, we identify two bright candidates at $m_F150W26$ that are unambiguously placed at $z10.6$ and $z12.3$, respectively. The total number of galaxies discovered at $z>9$ is in line with the predictions of a non-evolving LF. The two bright ones at $z>10$ are unexpected given the survey volume, although cosmic variance and small number statistics limits general conclusions. This first search demonstrates the unique power of JWST to discover galaxies at the high redshift frontier. The candidates are ideal targets for spectroscopic follow-up in cycle$-2$.

@misc{castellano2022early, abstract = {We present the results of a first search for galaxy candidates at z$\sim$9--15 on deep seven-bands NIRCam imaging acquired as part of the GLASS-JWST Early Release Science Program on a flanking field of the Frontier Fields cluster A2744. Candidates are selected via two different renditions of the Lyman-break technique, isolating objects at z$\sim$9-11, and z$\sim$9-15, respectively, supplemented by photometric redshifts obtained with two independent codes. We find six color-selected candidates at z$>$9, plus one additional candidate with photometric redshift z$_{phot}\geq$9. In particular, we identify two bright candidates at $m_{F150W}\simeq 26$ that are unambiguously placed at $z\simeq 10.6$ and $z\simeq 12.3$, respectively. The total number of galaxies discovered at $z>9$ is in line with the predictions of a non-evolving LF. The two bright ones at $z>10$ are unexpected given the survey volume, although cosmic variance and small number statistics limits general conclusions. This first search demonstrates the unique power of JWST to discover galaxies at the high redshift frontier. The candidates are ideal targets for spectroscopic follow-up in cycle$-2$.}, added-at = {2022-07-20T09:28:56.000+0200}, author = {Castellano, Marco and Fontana, Adriano and Treu, Tommaso and Santini, Paola and Merlin, Emiliano and Leethochawalit, Nicha and Trenti, Michele and Mestric, Uros and Vanzella, Eros and Bonchi, Andrea and Belfiori, Davide and Nonino, Mario and Paris, Diego and Polenta, Gianluca and Roberts-Borsani, Guido and Boyett, Kristan and Calabro, Antonello and Glazebrook, Karl and Grillo, Claudio and Mascia, Sara and Mason, Charlotte and Mercurio, Amata and Morishita, Takahiro and Nanayakkara, Themiya and Pentericci, Laura and Rosati, Piero and Vulcani, Benedetta and Wang, Xin and Yang, Lilan}, biburl = {https://www.bibsonomy.org/bibtex/2ecc1699768c49d802334634e0cb5e11e/gpkulkarni}, description = {Early results from GLASS-JWST. III: Galaxy candidates at z$\sim$9-15}, interhash = {160d22a2f5fc2af6e006f0029a09d98d}, intrahash = {ecc1699768c49d802334634e0cb5e11e}, keywords = {library}, note = {cite arxiv:2207.09436Comment: Submitted to ApJL, 9 pages, 4 figures}, timestamp = {2022-07-20T09:28:56.000+0200}, title = {Early results from GLASS-JWST. III: Galaxy candidates at z$\sim$9-15}, url = {http://arxiv.org/abs/2207.09436}, year = 2022 }