| Autor: |
S. J. McKay, A. J. Barger, L. L. Cowie, F. E. Bauer, M. J. Nicandro Rosenthal |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
The Astrophysical Journal, Vol 951, Iss 1, p 48 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1538-4357 |
| DOI: |
10.3847/1538-4357/acd1e5 |
| Popis: |
We analyze the dust properties of 57 870 μ 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 far-infrared 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 β 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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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