JWST's TEMPLATES for Star Formation: The First Resolved Gas-phase Metallicity Maps of Dust-obscured Star-forming Galaxies at z ∼ 4

被引：15

作者：

Birkin, Jack E. ^{[1
,2
]}

Hutchison, Taylor A. ^{[3
]}

Welch, Brian ^{[3
,4
,5
]}

Spilker, Justin S. ^{[1
,2
]}

Aravena, Manuel ^{[6
]}

Bayliss, Matthew B. ^{[7
]}

Cathey, Jared ^{[8
]}

Chapman, Scott C. ^{[9
,10
,11
]}

Gonzalez, Anthony H. ^{[8
]}

Gururajan, Gayathri ^{[12
,13
]}

Hayward, Christopher C. ^{[14
]}

Khullar, Gourav ^{[15
,16
]}

Kim, Keunho J. ^{[7
]}

Mahler, Guillaume ^{[17
,18
]}

Malkan, Matthew A. ^{[19
]}

Narayanan, Desika ^{[8
,20
,21
]}

Olivier, Grace M. ^{[1
,2
]}

Phadke, Kedar A. ^{[22
,23
]}

Reuter, Cassie ^{[22
]}

Rigby, Jane R. ^{[3
]}

Smith, J. D. T. ^{[24
]}

Solimano, Manuel ^{[25
]}

Sulzenauer, Nikolaus ^{[26
]}

Vieira, Joaquin D. ^{[22
,23
,27
]}

Vizgan, David ^{[22
]}

Weiss, Axel ^{[26
]}

机构：

[1] Texas A&M Univ, Dept Phys & Astron, 4242 TAMU, College Stn, TX 77843 USA

[2] Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, 4242 TAMU, College Stn, TX 77843 USA

[3] NASA, Goddard Space Flight Ctr, Observat Cosmol Lab, Code 665,8800 Greenbelt Rd, Greenbelt, MD 20771 USA

[4] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[5] NASA, GSFC, Ctr Res & Explorat Space Sci & Technol, Greenbelt, MD 20771 USA

[6] Univ Diego Portales, Fac Ingn & Ciencias, Inst Estudios Astrofis, Ave Ejercito 441, Santiago, Chile

[7] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA

[8] Univ Florida, Dept Astron, Bryant Space Sci Ctr 211, Gainesville, FL 32611 USA

[9] Univ British Columbia, Dept Phys & Astron, 6225 Agr Rd, Vancouver, BC V6T 1Z1, Canada

[10] Natl Res Council Canada, Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada

[11] Dalhousie Univ, Dept Phys & Atmospher Sci, 6310 Coburg Rd, Halifax, NS B3H 4R2, Canada

[12] Univ Bologna, Dept Phys & Astron Augusto Righi DIFA, Via Gobetti 93-2, I-40129 Bologna, Italy

[13] INAF Osservatorio Astrofis & Sci Spazio, Via Gobetti 93-3, I-40129 Bologna, Italy

[14] Ctr Computat Astrophys, 162 Fifth Ave, New York, NY 10010 USA

[15] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[16] Univ Pittsburgh, PITT PACC, Pittsburgh, PA 15260 USA

[17] Univ Durham, Ctr Extragalact Astron, South Rd, Durham DH1 3LE, England

[18] Univ Durham, Inst Computat Cosmol, South Rd, Durham DH1 3LE, England

[19] Univ Calif Los Angeles, Dept Phys & Astron, 430 Portola Plaza, Los Angeles, CA USA

[20] Univ Copenhagen, Niels Bohr Inst, Cosm Dawn Ctr, Copenhagen, Denmark

[21] Tech Univ Denmark, DTU Space, Copenhagen, Denmark

[22] Univ Illinois, Dept Astron, 1002 West Green St, Urbana, IL 61801 USA

[23] Natl Ctr Supercomp Applicat, Ctr Astrophys Surveys, 1205 West Clark St, Urbana, IL 61801 USA

[24] Univ Toledo, Dept Phys & Astron, Ritter Astrophys Res Ctr, Toledo, OH 43606 USA

[25] Univ Diego Portales, Inst Estudios Astrofisicos, Fac Ingn & Ciencias, Ave Ejercito Libertador 441, Santiago 8370191, Chile

[26] Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany

[27] Univ Illinois, Dept Phys, 1110 West Green St, Urbana, IL 61801 USA

来源：

ASTROPHYSICAL JOURNAL | 2023年 / 958卷 / 01期

关键词：

FRAME SUBMILLIMETER SPECTRUM; HIGH-REDSHIFT; MOLECULAR GAS; INTERSTELLAR-MEDIUM; MASS-METALLICITY; LENSED DUSTY; II EMISSION; ALMA SURVEY; EVOLUTION; POPULATION;

D O I：

10.3847/1538-4357/acf712

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first spatially resolved maps of gas-phase metallicity for two dust-obscured star-forming galaxies at z similar to 4, from the JWST TEMPLATES Early Release Science program, derived from NIRSpec integral field unit spectroscopy of the H alpha and [N ii] emission lines. Empirical optical line calibrations are used to determine that the sources are globally enriched to near-solar levels. While one source shows elevated [N ii]/H alpha ratios and broad H alpha emission consistent with the presence of an active galactic nucleus in a greater than or similar to 1 kpc region, we argue that both systems have already undergone significant metal enrichment as a result of their extremely high star formation rates. Utilizing Atacama Large Millimeter/submillimeter Array rest-frame 380 mu m continuum and [Ci](P-3(2)-P-3(1)) line maps we compare the spatial variation of the metallicity and gas-to-dust ratio in the two galaxies, finding the two properties to be anticorrelated on highly resolved spatial scales, consistent with various literature studies of z similar to 0 galaxies. The data are indicative of the enormous potential of JWST to probe the enrichment of the interstellar medium on similar to kpc scales in extremely dust-obscured systems at z similar to 4 and beyond.

引用

页数：10

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