The impact of JWST broad-band filter choice on photometric redshift estimation
he determination of galaxy redshifts in the James Webb Space Telescope’s (JWST) blank-field surveys will mostly rely on photometric estimates, based on the data provided by JWST’s Near-Infrared Camera (NIRCam) at 0.6–5.0 μm and Mid Infrared Instrument (MIRI) at λ > 5.0 μm . In this work we analyz...
| Autores: | , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/19128 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/19128 |
| Access Level: | acceso abierto |
| Palabra clave: | 52 Goods-south field Webb-space-telescope Extragalactic legacy survey Ly-alpha emitters VLT deep survey Keck spectroscopy Midinfrared instrument Optical spectroscopy Stellar populations Galaxies Astrofísica Astronomía (Física) |
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The impact of JWST broad-band filter choice on photometric redshift estimationBisigello, L.Caputi, K. I.Colina, L.Le Fèvre, O.Nørgaard-Nielsen, H. U.Pérez González, Pablo GuillermoPye, J.Van der Werf, P.Ilbert, O.Grogin, N.Koekemoer, A.52Goods-south fieldWebb-space-telescopeExtragalactic legacy surveyLy-alpha emittersVLT deep surveyKeck spectroscopyMidinfrared instrumentOptical spectroscopyStellar populationsGalaxiesAstrofísicaAstronomía (Física)he determination of galaxy redshifts in the James Webb Space Telescope’s (JWST) blank-field surveys will mostly rely on photometric estimates, based on the data provided by JWST’s Near-Infrared Camera (NIRCam) at 0.6–5.0 μm and Mid Infrared Instrument (MIRI) at λ > 5.0 μm . In this work we analyze the impact of choosing different combinations of NIRCam and MIRI broadband filters (F070W to F770W), as well as having ancillary data at λ < 0.6 μm , on the derived photometric redshifts (zphot) of a total of 5921 real and simulated galaxies, with known input redshifts z = 0–10. We found that observations at λ < 0.6 μm are necessary to control the contamination of high-z samples by low-z interlopers. Adding MIRI (F560W and F770W) photometry to the NIRCam data mitigates the absence of ancillary observations at λ < 0.6 μm and improves the redshift estimation. At z = 7–10, accurate z_(phot) can be obtained with the NIRCam broadbands alone when S/N ≥10, but the z_(phot) quality significantly degrades at S/N ≤ 5. Adding MIRI photometry with 1 mag brighter depth than the NIRCam depth allows for a redshift recovery of 83%–99%, depending on spectral energy distribution type, and its effect is particularly noteworthy for galaxies with nebular emission. The vast majority of NIRCam galaxies with [F150W] = 29 AB mag at z = 7–10 will be detected with MIRI at [F560W, F770W] < 28 mag if these sources are at least mildly evolved or have spectra with emission lines boosting the mid-infrared fluxes.IOP Publishing LtdUniversidad Complutense de Madrid20162016-12-0120162016-12-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/19128reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/191282026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
The impact of JWST broad-band filter choice on photometric redshift estimation |
| title |
The impact of JWST broad-band filter choice on photometric redshift estimation |
| spellingShingle |
The impact of JWST broad-band filter choice on photometric redshift estimation Bisigello, L. 52 Goods-south field Webb-space-telescope Extragalactic legacy survey Ly-alpha emitters VLT deep survey Keck spectroscopy Midinfrared instrument Optical spectroscopy Stellar populations Galaxies Astrofísica Astronomía (Física) |
| title_short |
The impact of JWST broad-band filter choice on photometric redshift estimation |
| title_full |
The impact of JWST broad-band filter choice on photometric redshift estimation |
| title_fullStr |
The impact of JWST broad-band filter choice on photometric redshift estimation |
| title_full_unstemmed |
The impact of JWST broad-band filter choice on photometric redshift estimation |
| title_sort |
The impact of JWST broad-band filter choice on photometric redshift estimation |
| dc.creator.none.fl_str_mv |
Bisigello, L. Caputi, K. I. Colina, L. Le Fèvre, O. Nørgaard-Nielsen, H. U. Pérez González, Pablo Guillermo Pye, J. Van der Werf, P. Ilbert, O. Grogin, N. Koekemoer, A. |
| author |
Bisigello, L. |
| author_facet |
Bisigello, L. Caputi, K. I. Colina, L. Le Fèvre, O. Nørgaard-Nielsen, H. U. Pérez González, Pablo Guillermo Pye, J. Van der Werf, P. Ilbert, O. Grogin, N. Koekemoer, A. |
| author_role |
author |
| author2 |
Caputi, K. I. Colina, L. Le Fèvre, O. Nørgaard-Nielsen, H. U. Pérez González, Pablo Guillermo Pye, J. Van der Werf, P. Ilbert, O. Grogin, N. Koekemoer, A. |
| author2_role |
author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Universidad Complutense de Madrid |
| dc.subject.none.fl_str_mv |
52 Goods-south field Webb-space-telescope Extragalactic legacy survey Ly-alpha emitters VLT deep survey Keck spectroscopy Midinfrared instrument Optical spectroscopy Stellar populations Galaxies Astrofísica Astronomía (Física) |
| topic |
52 Goods-south field Webb-space-telescope Extragalactic legacy survey Ly-alpha emitters VLT deep survey Keck spectroscopy Midinfrared instrument Optical spectroscopy Stellar populations Galaxies Astrofísica Astronomía (Física) |
| description |
he determination of galaxy redshifts in the James Webb Space Telescope’s (JWST) blank-field surveys will mostly rely on photometric estimates, based on the data provided by JWST’s Near-Infrared Camera (NIRCam) at 0.6–5.0 μm and Mid Infrared Instrument (MIRI) at λ > 5.0 μm . In this work we analyze the impact of choosing different combinations of NIRCam and MIRI broadband filters (F070W to F770W), as well as having ancillary data at λ < 0.6 μm , on the derived photometric redshifts (zphot) of a total of 5921 real and simulated galaxies, with known input redshifts z = 0–10. We found that observations at λ < 0.6 μm are necessary to control the contamination of high-z samples by low-z interlopers. Adding MIRI (F560W and F770W) photometry to the NIRCam data mitigates the absence of ancillary observations at λ < 0.6 μm and improves the redshift estimation. At z = 7–10, accurate z_(phot) can be obtained with the NIRCam broadbands alone when S/N ≥10, but the z_(phot) quality significantly degrades at S/N ≤ 5. Adding MIRI photometry with 1 mag brighter depth than the NIRCam depth allows for a redshift recovery of 83%–99%, depending on spectral energy distribution type, and its effect is particularly noteworthy for galaxies with nebular emission. The vast majority of NIRCam galaxies with [F150W] = 29 AB mag at z = 7–10 will be detected with MIRI at [F560W, F770W] < 28 mag if these sources are at least mildly evolved or have spectra with emission lines boosting the mid-infrared fluxes. |
| publishDate |
2016 |
| dc.date.none.fl_str_mv |
2016 2016-12-01 2016 2016-12-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/20.500.14352/19128 |
| url |
https://hdl.handle.net/20.500.14352/19128 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
IOP Publishing Ltd |
| publisher.none.fl_str_mv |
IOP Publishing Ltd |
| dc.source.none.fl_str_mv |
reponame:Docta Complutense instname:Universidad Complutense de Madrid (UCM) |
| instname_str |
Universidad Complutense de Madrid (UCM) |
| reponame_str |
Docta Complutense |
| collection |
Docta Complutense |
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1869422830670577664 |
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15,300719 |