UVCANDELS: Catalogs of photometric redshifts and galaxy physical properties
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arXiv
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| Natura: | Preprint |
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2024
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| author | Mehta, Vihang Rafelski, Marc Sunnquist, Ben Teplitz, Harry I. Scarlata, Claudia Wang, Xin Fontana, Adriano Hathi, Nimish P. Iyer, Kartheik G. Alavi, Anahita Colbert, James Grogin, Norman Koekemoer, Anton Nedkova, Kalina V. Hayes, Matthew Prichard, Laura Siana, Brian Smith, Brent M. Windhorst, Rogier Ashcraft, Teresa Bagley, Micaela Baronchelli, Ivano Barro, Guillermo Blanche, Alex Broussard, Adam Carleton, Timothy Chartab, Nima Codoreanu, Alex Cohen, Seth Conselice, Christopher Dai, Y. Sophia Darvish, Behnam Dave, Romeel DeGroot, Laura De Mello, Duilia Dickinson, Mark Emami, Najmeh Ferguson, Henry Ferreira, Leonardo Finkelstein, Keely Finkelstein, Steven Gardner, Jonathan P. Gawiser, Eric Gburek, Timothy Giavalisco, Mauro Grazian, Andrea Gronwall, Caryl Guo, Yicheng Haro, Pablo Arrabal Hemmati, Shoubaneh Howell, Justin Jansen, Rolf A. Ji, Zhiyuan Kaviraj, Sugata Kim, Keunho J. Kurczynski, Peter Lazar, Ilin Lucas, Ray A. MacKenty, John Mantha, Kameswara Bharadwaj Martin, Alec Martin, Garreth McCabe, Tyler Mobasher, Bahram Morales, Alexa M. O'Connell, Robert Olsen, Charlotte Otteson, Lillian Ravindranath, Swara Redshaw, Caleb Rutkowski, Michael Robertson, Brant Sattari, Zahra Soto, Emmaris Sun, Lei Taamoli, Sina Vanzella, Eros Yung, L. Y. Aaron Zabelle, Bonnabelle |
| author_facet | Mehta, Vihang Rafelski, Marc Sunnquist, Ben Teplitz, Harry I. Scarlata, Claudia Wang, Xin Fontana, Adriano Hathi, Nimish P. Iyer, Kartheik G. Alavi, Anahita Colbert, James Grogin, Norman Koekemoer, Anton Nedkova, Kalina V. Hayes, Matthew Prichard, Laura Siana, Brian Smith, Brent M. Windhorst, Rogier Ashcraft, Teresa Bagley, Micaela Baronchelli, Ivano Barro, Guillermo Blanche, Alex Broussard, Adam Carleton, Timothy Chartab, Nima Codoreanu, Alex Cohen, Seth Conselice, Christopher Dai, Y. Sophia Darvish, Behnam Dave, Romeel DeGroot, Laura De Mello, Duilia Dickinson, Mark Emami, Najmeh Ferguson, Henry Ferreira, Leonardo Finkelstein, Keely Finkelstein, Steven Gardner, Jonathan P. Gawiser, Eric Gburek, Timothy Giavalisco, Mauro Grazian, Andrea Gronwall, Caryl Guo, Yicheng Haro, Pablo Arrabal Hemmati, Shoubaneh Howell, Justin Jansen, Rolf A. Ji, Zhiyuan Kaviraj, Sugata Kim, Keunho J. Kurczynski, Peter Lazar, Ilin Lucas, Ray A. MacKenty, John Mantha, Kameswara Bharadwaj Martin, Alec Martin, Garreth McCabe, Tyler Mobasher, Bahram Morales, Alexa M. O'Connell, Robert Olsen, Charlotte Otteson, Lillian Ravindranath, Swara Redshaw, Caleb Rutkowski, Michael Robertson, Brant Sattari, Zahra Soto, Emmaris Sun, Lei Taamoli, Sina Vanzella, Eros Yung, L. Y. Aaron Zabelle, Bonnabelle |
| contents | The UltraViolet imaging of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey Fields (UVCANDELS) program provides deep HST F275W and F435W imaging over four CANDELS fields (GOODS-N, GOODS-S, COSMOS, and EGS). We combine this newly acquired UV imaging with existing HST imaging from CANDELS as well as existing ancillary data to obtain robust photometric redshifts and reliable estimates for galaxy physical properties for over 150,000 galaxies in the $\sim$430 arcmin$^2$ UVCANDELS area. Here, we leverage the power of the new UV photometry to not only improve the photometric redshift measurements in these fields, but also constrain the full redshift probability distribution combining multiple redshift fitting tools. Furthermore, using the full UV-to-IR photometric dataset, we measure the galaxy physical properties by fitting templates from population synthesis models with two different parameterizations (flexible and fixed-form) of the star-formation histories (SFHs). Compared to the flexible SFH parametrization, we find that the fixed-form SFHs systematically underestimate the galaxy stellar masses, both at the low- ($\lesssim10^9 M_\odot$) and high- ($\gtrsim10^{10} M_\odot$) mass end, by as much as $\sim0.5$ dex. This underestimation is primarily due the limited ability of fixed-form SFH parameterization to simultaneously capture the chaotic nature of star-formation in these galaxies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_16404 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | UVCANDELS: Catalogs of photometric redshifts and galaxy physical properties Mehta, Vihang Rafelski, Marc Sunnquist, Ben Teplitz, Harry I. Scarlata, Claudia Wang, Xin Fontana, Adriano Hathi, Nimish P. Iyer, Kartheik G. Alavi, Anahita Colbert, James Grogin, Norman Koekemoer, Anton Nedkova, Kalina V. Hayes, Matthew Prichard, Laura Siana, Brian Smith, Brent M. Windhorst, Rogier Ashcraft, Teresa Bagley, Micaela Baronchelli, Ivano Barro, Guillermo Blanche, Alex Broussard, Adam Carleton, Timothy Chartab, Nima Codoreanu, Alex Cohen, Seth Conselice, Christopher Dai, Y. Sophia Darvish, Behnam Dave, Romeel DeGroot, Laura De Mello, Duilia Dickinson, Mark Emami, Najmeh Ferguson, Henry Ferreira, Leonardo Finkelstein, Keely Finkelstein, Steven Gardner, Jonathan P. Gawiser, Eric Gburek, Timothy Giavalisco, Mauro Grazian, Andrea Gronwall, Caryl Guo, Yicheng Haro, Pablo Arrabal Hemmati, Shoubaneh Howell, Justin Jansen, Rolf A. Ji, Zhiyuan Kaviraj, Sugata Kim, Keunho J. Kurczynski, Peter Lazar, Ilin Lucas, Ray A. MacKenty, John Mantha, Kameswara Bharadwaj Martin, Alec Martin, Garreth McCabe, Tyler Mobasher, Bahram Morales, Alexa M. O'Connell, Robert Olsen, Charlotte Otteson, Lillian Ravindranath, Swara Redshaw, Caleb Rutkowski, Michael Robertson, Brant Sattari, Zahra Soto, Emmaris Sun, Lei Taamoli, Sina Vanzella, Eros Yung, L. Y. Aaron Zabelle, Bonnabelle Astrophysics of Galaxies The UltraViolet imaging of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey Fields (UVCANDELS) program provides deep HST F275W and F435W imaging over four CANDELS fields (GOODS-N, GOODS-S, COSMOS, and EGS). We combine this newly acquired UV imaging with existing HST imaging from CANDELS as well as existing ancillary data to obtain robust photometric redshifts and reliable estimates for galaxy physical properties for over 150,000 galaxies in the $\sim$430 arcmin$^2$ UVCANDELS area. Here, we leverage the power of the new UV photometry to not only improve the photometric redshift measurements in these fields, but also constrain the full redshift probability distribution combining multiple redshift fitting tools. Furthermore, using the full UV-to-IR photometric dataset, we measure the galaxy physical properties by fitting templates from population synthesis models with two different parameterizations (flexible and fixed-form) of the star-formation histories (SFHs). Compared to the flexible SFH parametrization, we find that the fixed-form SFHs systematically underestimate the galaxy stellar masses, both at the low- ($\lesssim10^9 M_\odot$) and high- ($\gtrsim10^{10} M_\odot$) mass end, by as much as $\sim0.5$ dex. This underestimation is primarily due the limited ability of fixed-form SFH parameterization to simultaneously capture the chaotic nature of star-formation in these galaxies. |
| title | UVCANDELS: Catalogs of photometric redshifts and galaxy physical properties |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2410.16404 |