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Extinction and Nebular Line Properties of a Herschel-selected Lensed Dusty Starburst at z = 1.027

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Extinction and Nebular Line Properties of a Herschel-selected Lensed Dusty Starburst at z = 1.027. / Timmons, Nicholas; Cooray, Asantha; Nayyeri, Hooshang et al.
In: The Astrophysical Journal, Vol. 805, No. 2, 01.06.2015, p. 140.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Timmons, N, Cooray, A, Nayyeri, H, Casey, C, Calanog, J, Ma, B, Messias, H, Baes, M, Bussmann, RS, Dunne, L, Dye, S, Eales, S, Fu, H, Ivison, RJ, Maddox, S, Michałowski, MJ, Oteo, I, Riechers, DA, Valiante, E & Wardlow, J 2015, 'Extinction and Nebular Line Properties of a Herschel-selected Lensed Dusty Starburst at z = 1.027', The Astrophysical Journal, vol. 805, no. 2, pp. 140. https://doi.org/10.1088/0004-637X/805/2/140

APA

Timmons, N., Cooray, A., Nayyeri, H., Casey, C., Calanog, J., Ma, B., Messias, H., Baes, M., Bussmann, R. S., Dunne, L., Dye, S., Eales, S., Fu, H., Ivison, R. J., Maddox, S., Michałowski, M. J., Oteo, I., Riechers, D. A., Valiante, E., & Wardlow, J. (2015). Extinction and Nebular Line Properties of a Herschel-selected Lensed Dusty Starburst at z = 1.027. The Astrophysical Journal, 805(2), 140. https://doi.org/10.1088/0004-637X/805/2/140

Vancouver

Timmons N, Cooray A, Nayyeri H, Casey C, Calanog J, Ma B et al. Extinction and Nebular Line Properties of a Herschel-selected Lensed Dusty Starburst at z = 1.027. The Astrophysical Journal. 2015 Jun 1;805(2):140. doi: 10.1088/0004-637X/805/2/140

Author

Timmons, Nicholas ; Cooray, Asantha ; Nayyeri, Hooshang et al. / Extinction and Nebular Line Properties of a Herschel-selected Lensed Dusty Starburst at z = 1.027. In: The Astrophysical Journal. 2015 ; Vol. 805, No. 2. pp. 140.

Bibtex

@article{6d449615171a4c9fb095795d80c7bb48,
title = "Extinction and Nebular Line Properties of a Herschel-selected Lensed Dusty Starburst at z = 1.027",
abstract = "We present Hubble Space Telescope Wide Field Camera 3 (WFC3) imaging and grism spectroscopy observations of the Herschel-selected gravitationally lensed starburst galaxy HATLASJ1429-0028. The lensing system consists of an edge-on foreground disk galaxy at z = 0.218 with a nearly complete Einstein ring of the infrared luminous galaxy at z = 1.027. The WFC3 spectroscopy with G102 and G141 grisms, covering the wavelength range of 0.8-1.7 μm, resulted in detections of Hα + [Nii], Hβ, [Sii], and [Oiii] for the background galaxy from which we measure line fluxes and ratios. The Balmer line ratio Hα/Hβ of 7.5 ± 4.4, when corrected for [Nii], results in an extinction for the starburst galaxy of E(B-V)=0.8+/- 0.5. The Hα-based star formation rate (SFR), when corrected for extinction, is 60 ± 50 {{M}⊙ } yr-1, lower than the instantaneous SFR of 390 ± 90 {{M}⊙ } yr-1 from the total IR luminosity. We also compare the nebular line ratios of HATLASJ1429-0028 with other star-forming and sub-millimeter bright galaxies. The nebular line ratios are consistent with an intrinsic ultra-luminous infrared galaxy with no evidence for excitation by an active galactic nucleus (AGN). We estimate the metallicity, 12 + log(O/H), of HATLASJ1429-0028 to be 8.49 ± 0.16. Such a low value is below the average relation for stellar mass versus metallicity of galaxies at z˜ 1 for a galaxy with a stellar mass of ˜ 2× {{10}11} {{M}⊙ }. The combination of high stellar mass, the lack of AGN indicators, low metallicity, and the high SFR of HATLASJ1429-0028 suggest that this galaxy is currently undergoing a rapid formation.",
keywords = "cosmology: observations, galaxies: evolution, infrared: galaxies, submillimeter: galaxies",
author = "Nicholas Timmons and Asantha Cooray and Hooshang Nayyeri and Caitlin Casey and Jae Calanog and Brian Ma and Hugo Messias and Maarten Baes and Bussmann, {R. Shane} and Loretta Dunne and Simon Dye and Steve Eales and Hai Fu and Ivison, {R. J.} and Steve Maddox and Micha{\l}owski, {Micha{\l} J.} and I. Oteo and Riechers, {Dominik A.} and Elisabetta Valiante and Julie Wardlow",
year = "2015",
month = jun,
day = "1",
doi = "10.1088/0004-637X/805/2/140",
language = "English",
volume = "805",
pages = "140",
journal = "The Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing",
number = "2",

}

RIS

TY - JOUR

T1 - Extinction and Nebular Line Properties of a Herschel-selected Lensed Dusty Starburst at z = 1.027

AU - Timmons, Nicholas

AU - Cooray, Asantha

AU - Nayyeri, Hooshang

AU - Casey, Caitlin

AU - Calanog, Jae

AU - Ma, Brian

AU - Messias, Hugo

AU - Baes, Maarten

AU - Bussmann, R. Shane

AU - Dunne, Loretta

AU - Dye, Simon

AU - Eales, Steve

AU - Fu, Hai

AU - Ivison, R. J.

AU - Maddox, Steve

AU - Michałowski, Michał J.

AU - Oteo, I.

AU - Riechers, Dominik A.

AU - Valiante, Elisabetta

AU - Wardlow, Julie

PY - 2015/6/1

Y1 - 2015/6/1

N2 - We present Hubble Space Telescope Wide Field Camera 3 (WFC3) imaging and grism spectroscopy observations of the Herschel-selected gravitationally lensed starburst galaxy HATLASJ1429-0028. The lensing system consists of an edge-on foreground disk galaxy at z = 0.218 with a nearly complete Einstein ring of the infrared luminous galaxy at z = 1.027. The WFC3 spectroscopy with G102 and G141 grisms, covering the wavelength range of 0.8-1.7 μm, resulted in detections of Hα + [Nii], Hβ, [Sii], and [Oiii] for the background galaxy from which we measure line fluxes and ratios. The Balmer line ratio Hα/Hβ of 7.5 ± 4.4, when corrected for [Nii], results in an extinction for the starburst galaxy of E(B-V)=0.8+/- 0.5. The Hα-based star formation rate (SFR), when corrected for extinction, is 60 ± 50 {{M}⊙ } yr-1, lower than the instantaneous SFR of 390 ± 90 {{M}⊙ } yr-1 from the total IR luminosity. We also compare the nebular line ratios of HATLASJ1429-0028 with other star-forming and sub-millimeter bright galaxies. The nebular line ratios are consistent with an intrinsic ultra-luminous infrared galaxy with no evidence for excitation by an active galactic nucleus (AGN). We estimate the metallicity, 12 + log(O/H), of HATLASJ1429-0028 to be 8.49 ± 0.16. Such a low value is below the average relation for stellar mass versus metallicity of galaxies at z˜ 1 for a galaxy with a stellar mass of ˜ 2× {{10}11} {{M}⊙ }. The combination of high stellar mass, the lack of AGN indicators, low metallicity, and the high SFR of HATLASJ1429-0028 suggest that this galaxy is currently undergoing a rapid formation.

AB - We present Hubble Space Telescope Wide Field Camera 3 (WFC3) imaging and grism spectroscopy observations of the Herschel-selected gravitationally lensed starburst galaxy HATLASJ1429-0028. The lensing system consists of an edge-on foreground disk galaxy at z = 0.218 with a nearly complete Einstein ring of the infrared luminous galaxy at z = 1.027. The WFC3 spectroscopy with G102 and G141 grisms, covering the wavelength range of 0.8-1.7 μm, resulted in detections of Hα + [Nii], Hβ, [Sii], and [Oiii] for the background galaxy from which we measure line fluxes and ratios. The Balmer line ratio Hα/Hβ of 7.5 ± 4.4, when corrected for [Nii], results in an extinction for the starburst galaxy of E(B-V)=0.8+/- 0.5. The Hα-based star formation rate (SFR), when corrected for extinction, is 60 ± 50 {{M}⊙ } yr-1, lower than the instantaneous SFR of 390 ± 90 {{M}⊙ } yr-1 from the total IR luminosity. We also compare the nebular line ratios of HATLASJ1429-0028 with other star-forming and sub-millimeter bright galaxies. The nebular line ratios are consistent with an intrinsic ultra-luminous infrared galaxy with no evidence for excitation by an active galactic nucleus (AGN). We estimate the metallicity, 12 + log(O/H), of HATLASJ1429-0028 to be 8.49 ± 0.16. Such a low value is below the average relation for stellar mass versus metallicity of galaxies at z˜ 1 for a galaxy with a stellar mass of ˜ 2× {{10}11} {{M}⊙ }. The combination of high stellar mass, the lack of AGN indicators, low metallicity, and the high SFR of HATLASJ1429-0028 suggest that this galaxy is currently undergoing a rapid formation.

KW - cosmology: observations

KW - galaxies: evolution

KW - infrared: galaxies

KW - submillimeter: galaxies

U2 - 10.1088/0004-637X/805/2/140

DO - 10.1088/0004-637X/805/2/140

M3 - Journal article

VL - 805

SP - 140

JO - The Astrophysical Journal

JF - The Astrophysical Journal

SN - 0004-637X

IS - 2

ER -