CANUCS/Technicolor Data Release 1: Imaging, Photometry, Slit Spectroscopy, and Stellar Population Parameters
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2025
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| author | Sarrouh, Ghassan T. E. Asada, Yoshihisa Martis, Nicholas S. Willott, Chris J. Iyer, Kartheik G. Noirot, Gaël Muzzin, Adam Sawicki, Marcin Brammer, Gabriel Desprez, Guillaume Rihtaršič, Gregor Zabl, Johannes Abraham, Roberto Bradač, Maruša Doyon, René Antwi-Danso, Jacqueline Berek, Samantha Brown, Westley Estrada-Carpenter, Vince Favaro, Jeremy Felicioni, Giordano Forrest, Ben Gaspar, Gaia Gould, Katriona M. L. Gledhill, Rachel Harshan, Anishya Jahan, Nusrath Jagga, Naadiyah Judež, Jon Marchesini, Danilo Markov, Vladan Matharu, Jasleen MacFarland, Shannon Merchant, Maya Mérida, Rosa M. Mowla, Lamiya Myers, Katherine Omori, Kiyoaki C. Pacifici, Camilla Ravindranath, Swara Robbins, Luke Strait, Victoria Sok, Visal Tan, Vivian Yun Yan Tripodi, Roberta Wilson, Gillian Withers, Sunna |
| author_facet | Sarrouh, Ghassan T. E. Asada, Yoshihisa Martis, Nicholas S. Willott, Chris J. Iyer, Kartheik G. Noirot, Gaël Muzzin, Adam Sawicki, Marcin Brammer, Gabriel Desprez, Guillaume Rihtaršič, Gregor Zabl, Johannes Abraham, Roberto Bradač, Maruša Doyon, René Antwi-Danso, Jacqueline Berek, Samantha Brown, Westley Estrada-Carpenter, Vince Favaro, Jeremy Felicioni, Giordano Forrest, Ben Gaspar, Gaia Gould, Katriona M. L. Gledhill, Rachel Harshan, Anishya Jahan, Nusrath Jagga, Naadiyah Judež, Jon Marchesini, Danilo Markov, Vladan Matharu, Jasleen MacFarland, Shannon Merchant, Maya Mérida, Rosa M. Mowla, Lamiya Myers, Katherine Omori, Kiyoaki C. Pacifici, Camilla Ravindranath, Swara Robbins, Luke Strait, Victoria Sok, Visal Tan, Vivian Yun Yan Tripodi, Roberta Wilson, Gillian Withers, Sunna |
| contents | We present the first data release of the CAnadian NIRISS Unbiased Cluster Survey (CANUCS), a JWST Cycle 1 GTO program targeting 5 lensing clusters and flanking fields in parallel (Abell 370, MACS0416, MACS0417, MACS1149, MACS1423; survey area \tilda100 arcmin$^{2}$), with NIRCam imaging, NIRISS slitless spectroscopy, and NIRSpec prism multi-object spectroscopy. Fields centered on cluster cores include imaging in 8 bands from 0.9-4.4$μ$m, alongside continuous NIRISS coverage from 1.15-2$μ$m, while the NIRCam flanking fields provide 5 wide and 9 medium band filters for exceptional spectral sampling, all to \tilda29 mag$_{AB}$. We also present JWST in Technicolor, a Cycle 2 follow-up GO program targeting 3 CANUCS clusters (Abell 370, MACS0416, MACS1149). The Technicolor program adds NIRISS slitless spectroscopy in F090W to the cluster fields while adding 8 wide, medium, and narrow band filters to the flanking fields. This provides NIRCam imaging in all wide and medium band filters over \tilda30 arcmin$^{2}$. This paper describes our data reduction and photometry methodology. We release NIRCam, NIRISS, and HST imaging, PSFs, PSF-matched imaging, photometric catalogs, and photometric and spectroscopic redshifts. We provide lens models and stellar population parameters in up to 19 filters for \tilda53,000 galaxies in the cluster fields, and \tilda44,000 galaxies in up to 29 filters in the flanking fields. We further present 733 NIRSpec spectra and redshift measurements up to $z=10.8$. Comparing against our photometric redshifts, we find catastrophic outlier rates of only 4-7\% and scatter of $σ_{\rm NMAD}$ of 0.01-0.03. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_21685 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | CANUCS/Technicolor Data Release 1: Imaging, Photometry, Slit Spectroscopy, and Stellar Population Parameters Sarrouh, Ghassan T. E. Asada, Yoshihisa Martis, Nicholas S. Willott, Chris J. Iyer, Kartheik G. Noirot, Gaël Muzzin, Adam Sawicki, Marcin Brammer, Gabriel Desprez, Guillaume Rihtaršič, Gregor Zabl, Johannes Abraham, Roberto Bradač, Maruša Doyon, René Antwi-Danso, Jacqueline Berek, Samantha Brown, Westley Estrada-Carpenter, Vince Favaro, Jeremy Felicioni, Giordano Forrest, Ben Gaspar, Gaia Gould, Katriona M. L. Gledhill, Rachel Harshan, Anishya Jahan, Nusrath Jagga, Naadiyah Judež, Jon Marchesini, Danilo Markov, Vladan Matharu, Jasleen MacFarland, Shannon Merchant, Maya Mérida, Rosa M. Mowla, Lamiya Myers, Katherine Omori, Kiyoaki C. Pacifici, Camilla Ravindranath, Swara Robbins, Luke Strait, Victoria Sok, Visal Tan, Vivian Yun Yan Tripodi, Roberta Wilson, Gillian Withers, Sunna Astrophysics of Galaxies We present the first data release of the CAnadian NIRISS Unbiased Cluster Survey (CANUCS), a JWST Cycle 1 GTO program targeting 5 lensing clusters and flanking fields in parallel (Abell 370, MACS0416, MACS0417, MACS1149, MACS1423; survey area \tilda100 arcmin$^{2}$), with NIRCam imaging, NIRISS slitless spectroscopy, and NIRSpec prism multi-object spectroscopy. Fields centered on cluster cores include imaging in 8 bands from 0.9-4.4$μ$m, alongside continuous NIRISS coverage from 1.15-2$μ$m, while the NIRCam flanking fields provide 5 wide and 9 medium band filters for exceptional spectral sampling, all to \tilda29 mag$_{AB}$. We also present JWST in Technicolor, a Cycle 2 follow-up GO program targeting 3 CANUCS clusters (Abell 370, MACS0416, MACS1149). The Technicolor program adds NIRISS slitless spectroscopy in F090W to the cluster fields while adding 8 wide, medium, and narrow band filters to the flanking fields. This provides NIRCam imaging in all wide and medium band filters over \tilda30 arcmin$^{2}$. This paper describes our data reduction and photometry methodology. We release NIRCam, NIRISS, and HST imaging, PSFs, PSF-matched imaging, photometric catalogs, and photometric and spectroscopic redshifts. We provide lens models and stellar population parameters in up to 19 filters for \tilda53,000 galaxies in the cluster fields, and \tilda44,000 galaxies in up to 29 filters in the flanking fields. We further present 733 NIRSpec spectra and redshift measurements up to $z=10.8$. Comparing against our photometric redshifts, we find catastrophic outlier rates of only 4-7\% and scatter of $σ_{\rm NMAD}$ of 0.01-0.03. |
| title | CANUCS/Technicolor Data Release 1: Imaging, Photometry, Slit Spectroscopy, and Stellar Population Parameters |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2506.21685 |