A dense, solar metallicity ISM in the z = 4.2 dusty star-forming galaxy SPT 0418-47

Carlos De Breuck, Axel Weiß, Matthieu Béthermin, Daniel Cunningham, Yordanka Apostolovski, Manuel Aravena, Melanie Archipley, Scott Chapman, Chian Chou Chen, Jianyang Fu, Sreevani Jarugula, Matt Malkan, Amelia C. Mangian, Kedar A. Phadke, Cassie A. Reuter, Gordon Stacey, Maria Strandet, Joaquin Vieira, Amit Vishwas

Resultado de la investigación: Article

Resumen

We present a study of six far-infrared fine structure lines in the z = 4.225 lensed dusty star-forming galaxy SPT 0418-47 to probe the physical conditions of its interstellar medium (ISM). In particular, we report Atacama Pathfinder EXperiment (APEX) detections of the [OI] 145 μm and [OIII] 88 μm lines and Atacama Compact Array (ACA) detections of the [NII] 122 and 205 μm lines. The [OI] 145 μm/[CII] 158 μm line ratio is ∼5× higher compared to the average of local galaxies. We interpret this as evidence that the ISM is dominated by photo-dissociation regions with high gas densities. The line ratios, and in particular those of [OIII] 88 μm and [NII] 122 μm imply that the ISM in SPT 0418-47 is already chemically enriched to nearly solar metallicity. While the strong gravitational amplification was required to detect these lines with APEX, larger samples can be observed with the Atacama Large Millimeter/submillimeter Array (ALMA), and should allow observers to determine if the dense, solar metallicity ISM is common among these highly star-forming galaxies.

Idioma originalEnglish
Número de artículo201936169
PublicaciónAstronomy and Astrophysics
Volumen631
DOI
EstadoPublished - 1 nov 2019

Huella dactilar

metallicity
galaxies
stars
amplification
experiment
probe
gas density
gas
photodissociation
fine structure
detection
probes
physical conditions

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

De Breuck, C., Weiß, A., Béthermin, M., Cunningham, D., Apostolovski, Y., Aravena, M., ... Vishwas, A. (2019). A dense, solar metallicity ISM in the z = 4.2 dusty star-forming galaxy SPT 0418-47. Astronomy and Astrophysics, 631, [201936169]. https://doi.org/10.1051/0004-6361/201936169
De Breuck, Carlos ; Weiß, Axel ; Béthermin, Matthieu ; Cunningham, Daniel ; Apostolovski, Yordanka ; Aravena, Manuel ; Archipley, Melanie ; Chapman, Scott ; Chen, Chian Chou ; Fu, Jianyang ; Jarugula, Sreevani ; Malkan, Matt ; Mangian, Amelia C. ; Phadke, Kedar A. ; Reuter, Cassie A. ; Stacey, Gordon ; Strandet, Maria ; Vieira, Joaquin ; Vishwas, Amit. / A dense, solar metallicity ISM in the z = 4.2 dusty star-forming galaxy SPT 0418-47. En: Astronomy and Astrophysics. 2019 ; Vol. 631.
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title = "A dense, solar metallicity ISM in the z = 4.2 dusty star-forming galaxy SPT 0418-47",
abstract = "We present a study of six far-infrared fine structure lines in the z = 4.225 lensed dusty star-forming galaxy SPT 0418-47 to probe the physical conditions of its interstellar medium (ISM). In particular, we report Atacama Pathfinder EXperiment (APEX) detections of the [OI] 145 μm and [OIII] 88 μm lines and Atacama Compact Array (ACA) detections of the [NII] 122 and 205 μm lines. The [OI] 145 μm/[CII] 158 μm line ratio is ∼5× higher compared to the average of local galaxies. We interpret this as evidence that the ISM is dominated by photo-dissociation regions with high gas densities. The line ratios, and in particular those of [OIII] 88 μm and [NII] 122 μm imply that the ISM in SPT 0418-47 is already chemically enriched to nearly solar metallicity. While the strong gravitational amplification was required to detect these lines with APEX, larger samples can be observed with the Atacama Large Millimeter/submillimeter Array (ALMA), and should allow observers to determine if the dense, solar metallicity ISM is common among these highly star-forming galaxies.",
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De Breuck, C, Weiß, A, Béthermin, M, Cunningham, D, Apostolovski, Y, Aravena, M, Archipley, M, Chapman, S, Chen, CC, Fu, J, Jarugula, S, Malkan, M, Mangian, AC, Phadke, KA, Reuter, CA, Stacey, G, Strandet, M, Vieira, J & Vishwas, A 2019, 'A dense, solar metallicity ISM in the z = 4.2 dusty star-forming galaxy SPT 0418-47', Astronomy and Astrophysics, vol. 631, 201936169. https://doi.org/10.1051/0004-6361/201936169

A dense, solar metallicity ISM in the z = 4.2 dusty star-forming galaxy SPT 0418-47. / De Breuck, Carlos; Weiß, Axel; Béthermin, Matthieu; Cunningham, Daniel; Apostolovski, Yordanka; Aravena, Manuel; Archipley, Melanie; Chapman, Scott; Chen, Chian Chou; Fu, Jianyang; Jarugula, Sreevani; Malkan, Matt; Mangian, Amelia C.; Phadke, Kedar A.; Reuter, Cassie A.; Stacey, Gordon; Strandet, Maria; Vieira, Joaquin; Vishwas, Amit.

En: Astronomy and Astrophysics, Vol. 631, 201936169, 01.11.2019.

Resultado de la investigación: Article

TY - JOUR

T1 - A dense, solar metallicity ISM in the z = 4.2 dusty star-forming galaxy SPT 0418-47

AU - De Breuck, Carlos

AU - Weiß, Axel

AU - Béthermin, Matthieu

AU - Cunningham, Daniel

AU - Apostolovski, Yordanka

AU - Aravena, Manuel

AU - Archipley, Melanie

AU - Chapman, Scott

AU - Chen, Chian Chou

AU - Fu, Jianyang

AU - Jarugula, Sreevani

AU - Malkan, Matt

AU - Mangian, Amelia C.

AU - Phadke, Kedar A.

AU - Reuter, Cassie A.

AU - Stacey, Gordon

AU - Strandet, Maria

AU - Vieira, Joaquin

AU - Vishwas, Amit

PY - 2019/11/1

Y1 - 2019/11/1

N2 - We present a study of six far-infrared fine structure lines in the z = 4.225 lensed dusty star-forming galaxy SPT 0418-47 to probe the physical conditions of its interstellar medium (ISM). In particular, we report Atacama Pathfinder EXperiment (APEX) detections of the [OI] 145 μm and [OIII] 88 μm lines and Atacama Compact Array (ACA) detections of the [NII] 122 and 205 μm lines. The [OI] 145 μm/[CII] 158 μm line ratio is ∼5× higher compared to the average of local galaxies. We interpret this as evidence that the ISM is dominated by photo-dissociation regions with high gas densities. The line ratios, and in particular those of [OIII] 88 μm and [NII] 122 μm imply that the ISM in SPT 0418-47 is already chemically enriched to nearly solar metallicity. While the strong gravitational amplification was required to detect these lines with APEX, larger samples can be observed with the Atacama Large Millimeter/submillimeter Array (ALMA), and should allow observers to determine if the dense, solar metallicity ISM is common among these highly star-forming galaxies.

AB - We present a study of six far-infrared fine structure lines in the z = 4.225 lensed dusty star-forming galaxy SPT 0418-47 to probe the physical conditions of its interstellar medium (ISM). In particular, we report Atacama Pathfinder EXperiment (APEX) detections of the [OI] 145 μm and [OIII] 88 μm lines and Atacama Compact Array (ACA) detections of the [NII] 122 and 205 μm lines. The [OI] 145 μm/[CII] 158 μm line ratio is ∼5× higher compared to the average of local galaxies. We interpret this as evidence that the ISM is dominated by photo-dissociation regions with high gas densities. The line ratios, and in particular those of [OIII] 88 μm and [NII] 122 μm imply that the ISM in SPT 0418-47 is already chemically enriched to nearly solar metallicity. While the strong gravitational amplification was required to detect these lines with APEX, larger samples can be observed with the Atacama Large Millimeter/submillimeter Array (ALMA), and should allow observers to determine if the dense, solar metallicity ISM is common among these highly star-forming galaxies.

KW - Galaxies: high-redshift

KW - Galaxies: ISM

KW - Submillimeter: galaxies

KW - Submillimeter: ISM

UR - http://www.scopus.com/inward/record.url?scp=85075882167&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201936169

DO - 10.1051/0004-6361/201936169

M3 - Article

AN - SCOPUS:85075882167

VL - 631

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - 201936169

ER -

De Breuck C, Weiß A, Béthermin M, Cunningham D, Apostolovski Y, Aravena M y otros. A dense, solar metallicity ISM in the z = 4.2 dusty star-forming galaxy SPT 0418-47. Astronomy and Astrophysics. 2019 nov 1;631. 201936169. https://doi.org/10.1051/0004-6361/201936169