A Comparison of Rest-frame Ultraviolet and Optical Emission-line Diagnostics in the Lensed Galaxy SDSS J1723+3411 at Redshift z=1.3293

Research output: Contribution to journal › Journal article › Research › peer-review

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A Comparison of Rest-frame Ultraviolet and Optical Emission-line Diagnostics in the Lensed Galaxy SDSS J1723+3411 at Redshift z=1.3293. / Rigby, J. R.; Florian, Michael; Acharyya, A.; Bayliss, Matthew; Gladders, Michael D.; Sharon, Keren; Brammer, Gabriel; Momcheva, Ivelina; LaMassa, Stephanie; Bian, Fuyan; Dahle, Hakon; Johnson, Traci; Kewley, Lisa; Murray, Katherine; Whitaker, Katherine; Wuyts, Eva.

In: Astrophysical Journal, Vol. 908, No. 2, 154, 19.02.2021.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Rigby, JR, Florian, M, Acharyya, A, Bayliss, M, Gladders, MD, Sharon, K, Brammer, G, Momcheva, I, LaMassa, S, Bian, F, Dahle, H, Johnson, T, Kewley, L, Murray, K, Whitaker, K & Wuyts, E 2021, 'A Comparison of Rest-frame Ultraviolet and Optical Emission-line Diagnostics in the Lensed Galaxy SDSS J1723+3411 at Redshift z=1.3293', Astrophysical Journal, vol. 908, no. 2, 154. https://doi.org/10.3847/1538-4357/abcfc9

APA

Rigby, J. R., Florian, M., Acharyya, A., Bayliss, M., Gladders, M. D., Sharon, K., Brammer, G., Momcheva, I., LaMassa, S., Bian, F., Dahle, H., Johnson, T., Kewley, L., Murray, K., Whitaker, K., & Wuyts, E. (2021). A Comparison of Rest-frame Ultraviolet and Optical Emission-line Diagnostics in the Lensed Galaxy SDSS J1723+3411 at Redshift z=1.3293. Astrophysical Journal, 908(2), [154]. https://doi.org/10.3847/1538-4357/abcfc9

Vancouver

Rigby JR, Florian M, Acharyya A, Bayliss M, Gladders MD, Sharon K et al. A Comparison of Rest-frame Ultraviolet and Optical Emission-line Diagnostics in the Lensed Galaxy SDSS J1723+3411 at Redshift z=1.3293. Astrophysical Journal. 2021 Feb 19;908(2). 154. https://doi.org/10.3847/1538-4357/abcfc9

Author

Rigby, J. R. ; Florian, Michael ; Acharyya, A. ; Bayliss, Matthew ; Gladders, Michael D. ; Sharon, Keren ; Brammer, Gabriel ; Momcheva, Ivelina ; LaMassa, Stephanie ; Bian, Fuyan ; Dahle, Hakon ; Johnson, Traci ; Kewley, Lisa ; Murray, Katherine ; Whitaker, Katherine ; Wuyts, Eva. / A Comparison of Rest-frame Ultraviolet and Optical Emission-line Diagnostics in the Lensed Galaxy SDSS J1723+3411 at Redshift z=1.3293. In: Astrophysical Journal. 2021 ; Vol. 908, No. 2.

Bibtex

@article{21b831c4b8e94a9ba16901e031e39fad,
title = "A Comparison of Rest-frame Ultraviolet and Optical Emission-line Diagnostics in the Lensed Galaxy SDSS J1723+3411 at Redshift z=1.3293",
abstract = "For the extremely bright lensed galaxy SDSS J1723+3411 at z = 1.3293, we analyze spatially integrated MMT, Keck, and Hubble Space Telescope spectra that fully cover the rest-frame wavelength range of 1400-7200 A. We also analyze near-IR spectra from Gemini that cover H alpha for a portion of the lensed arc. We report fluxes for 42 detected emission lines, and upper limits for an additional 22. This galaxy has extreme emission-line ratios and high equivalent widths that are characteristic of extreme emission-line galaxies. We compute strong emission-line diagnostics from both the rest-frame optical and rest-frame ultraviolet (UV), to constrain physical conditions and test the spectral diagnostics themselves. We tightly determine the nebular physical conditions using the most reliable diagnostics, and then compare to results from other diagnostics. We find disappointing performance from the UV-only diagnostics: they either are unable to measure the metallicity or dramatically underestimate it; they overestimate the pressure; and the UV diagnostic of ionization parameter has a strong metallicity dependence in this regime. Based on these results, we suggest that upcoming James Webb Space Telescope (JWST) spectroscopic surveys of galaxies in the reionization epoch should invest the additional integration time to capture the optical [O ii] and [O iii] emission lines, and not rely solely on the rest-frame UV emission lines. We make available the spectra; they represent one of the highest-quality emission-line spectral atlases of star-forming galaxies available beyond the local universe, and will aid the planning of observations with JWST.",
keywords = "Gravitational lensing, Galaxy evolution, Atomic spectroscopy, Spectroscopy, Emission line galaxies, Starburst galaxies, Interstellar medium, STAR-FORMING GALAXIES, MASS-METALLICITY RELATION, DEG(2) BLIND SURVEY, PHYSICAL CONDITIONS, IONIZATION PARAMETER, CHEMICAL-COMPOSITION, LUMINOSITY FUNCTION, ELECTRON-DENSITY, DEEP FIELDS, LY-ALPHA",
author = "Rigby, {J. R.} and Michael Florian and A. Acharyya and Matthew Bayliss and Gladders, {Michael D.} and Keren Sharon and Gabriel Brammer and Ivelina Momcheva and Stephanie LaMassa and Fuyan Bian and Hakon Dahle and Traci Johnson and Lisa Kewley and Katherine Murray and Katherine Whitaker and Eva Wuyts",
year = "2021",
month = feb,
day = "19",
doi = "10.3847/1538-4357/abcfc9",
language = "English",
volume = "908",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing, Inc",
number = "2",

}

RIS

TY - JOUR

T1 - A Comparison of Rest-frame Ultraviolet and Optical Emission-line Diagnostics in the Lensed Galaxy SDSS J1723+3411 at Redshift z=1.3293

AU - Rigby, J. R.

AU - Florian, Michael

AU - Acharyya, A.

AU - Bayliss, Matthew

AU - Gladders, Michael D.

AU - Sharon, Keren

AU - Brammer, Gabriel

AU - Momcheva, Ivelina

AU - LaMassa, Stephanie

AU - Bian, Fuyan

AU - Dahle, Hakon

AU - Johnson, Traci

AU - Kewley, Lisa

AU - Murray, Katherine

AU - Whitaker, Katherine

AU - Wuyts, Eva

PY - 2021/2/19

Y1 - 2021/2/19

N2 - For the extremely bright lensed galaxy SDSS J1723+3411 at z = 1.3293, we analyze spatially integrated MMT, Keck, and Hubble Space Telescope spectra that fully cover the rest-frame wavelength range of 1400-7200 A. We also analyze near-IR spectra from Gemini that cover H alpha for a portion of the lensed arc. We report fluxes for 42 detected emission lines, and upper limits for an additional 22. This galaxy has extreme emission-line ratios and high equivalent widths that are characteristic of extreme emission-line galaxies. We compute strong emission-line diagnostics from both the rest-frame optical and rest-frame ultraviolet (UV), to constrain physical conditions and test the spectral diagnostics themselves. We tightly determine the nebular physical conditions using the most reliable diagnostics, and then compare to results from other diagnostics. We find disappointing performance from the UV-only diagnostics: they either are unable to measure the metallicity or dramatically underestimate it; they overestimate the pressure; and the UV diagnostic of ionization parameter has a strong metallicity dependence in this regime. Based on these results, we suggest that upcoming James Webb Space Telescope (JWST) spectroscopic surveys of galaxies in the reionization epoch should invest the additional integration time to capture the optical [O ii] and [O iii] emission lines, and not rely solely on the rest-frame UV emission lines. We make available the spectra; they represent one of the highest-quality emission-line spectral atlases of star-forming galaxies available beyond the local universe, and will aid the planning of observations with JWST.

AB - For the extremely bright lensed galaxy SDSS J1723+3411 at z = 1.3293, we analyze spatially integrated MMT, Keck, and Hubble Space Telescope spectra that fully cover the rest-frame wavelength range of 1400-7200 A. We also analyze near-IR spectra from Gemini that cover H alpha for a portion of the lensed arc. We report fluxes for 42 detected emission lines, and upper limits for an additional 22. This galaxy has extreme emission-line ratios and high equivalent widths that are characteristic of extreme emission-line galaxies. We compute strong emission-line diagnostics from both the rest-frame optical and rest-frame ultraviolet (UV), to constrain physical conditions and test the spectral diagnostics themselves. We tightly determine the nebular physical conditions using the most reliable diagnostics, and then compare to results from other diagnostics. We find disappointing performance from the UV-only diagnostics: they either are unable to measure the metallicity or dramatically underestimate it; they overestimate the pressure; and the UV diagnostic of ionization parameter has a strong metallicity dependence in this regime. Based on these results, we suggest that upcoming James Webb Space Telescope (JWST) spectroscopic surveys of galaxies in the reionization epoch should invest the additional integration time to capture the optical [O ii] and [O iii] emission lines, and not rely solely on the rest-frame UV emission lines. We make available the spectra; they represent one of the highest-quality emission-line spectral atlases of star-forming galaxies available beyond the local universe, and will aid the planning of observations with JWST.

KW - Gravitational lensing

KW - Galaxy evolution

KW - Atomic spectroscopy

KW - Spectroscopy

KW - Emission line galaxies

KW - Starburst galaxies

KW - Interstellar medium

KW - STAR-FORMING GALAXIES

KW - MASS-METALLICITY RELATION

KW - DEG(2) BLIND SURVEY

KW - PHYSICAL CONDITIONS

KW - IONIZATION PARAMETER

KW - CHEMICAL-COMPOSITION

KW - LUMINOSITY FUNCTION

KW - ELECTRON-DENSITY

KW - DEEP FIELDS

KW - LY-ALPHA

U2 - 10.3847/1538-4357/abcfc9

DO - 10.3847/1538-4357/abcfc9

M3 - Journal article

VL - 908

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 154

ER -

ID: 299751236