Dust Properties of 870 μm-selected Galaxies in GOODS-S

被引：8

作者：

McKay, S. J. ^{[1
]}

Barger, A. J. ^{[2
,3
,4
]}

Cowie, L. L. ^{[4
]}

Bauer, F. E. ^{[5
,6
,7
]}

Rosenthal, M. J. Nicandro ^{[2
]}

机构：

[1] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA

[2] Univ Wisconsin, Dept Astron, 475 N Charter St, Madison, WI 53706 USA

[3] Univ Hawaii, Dept Phys & Astron, 2505 Correa Rd, Honolulu, HI 96822 USA

[4] Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA

[5] Pontificia Univ Catolica Chile, Inst Astrofis, Casilla 306, Santiago 22, Chile

[6] Millennium Inst Astrophys MAS, Nuncio Monsenor Sotero Sanz 100, Providencia, Santiago, Chile

[7] Space Sci Inst, 4750 Walnut St, Suite 205, Boulder, CO 80301 USA

来源：

ASTROPHYSICAL JOURNAL | 2023年 / 951卷 / 01期

基金：

美国国家科学基金会; 英国科学技术设施理事会;

关键词：

STAR-FORMING GALAXIES; DEEP-FIELD-SOUTH; COSMOLOGY LEGACY SURVEY; SPECTRAL ENERGY-DISTRIBUTIONS; SUBMILLIMETER GALAXIES; ALMA SURVEY; MULTIWAVELENGTH PROPERTIES; PHYSICAL-PROPERTIES; INTERSTELLAR-MEDIUM; SOURCE CATALOG;

D O I：

10.3847/1538-4357/acd1e5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze the dust properties of 57 870 mu m-selected dusty star-forming galaxies in GOODS-S using new deep Atacama Large Millimeter/Submillimeter Array 1.2, 2, and 3 mm continuum imaging together with other farinfrared through millimeter data. We fit the spectral energy distributions (SEDs) with optically thin modified blackbodies to constrain the emissivity indices and effective dust temperatures, finding a median emissivity index of beta=1.78(-0.25)(+0.43) and a median temperature of T-d =33.6(-5.4)(+12.1) K. We observe a negative correlation between beta and T-d. By testing several SED models, we determine that the derived emissivity indices can be influenced by opacity assumptions. Our temperature measurements are consistent with no evolution in dust temperature with redshift.

引用

页数：15

共 46 条

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