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Differential attenuation in star-forming galaxies at 0.3 $\lesssim$ $z$ $\lesssim$ 1.5 in the SHARDS/CANDELS field
- Source :
- Mon.Not.Roy.Astron.Soc., Mon.Not.Roy.Astron.Soc., 2022, 510 (2), ⟨10.1093/mnras/stab3558⟩
- Publication Year :
- 2022
- Publisher :
- HAL CCSD, 2022.
-
Abstract
- We use a sample of 706 galaxies, selected as [OII]$\lambda$3727 ([OII]) emitters in the Survey for High-$z$ Absorption Red and Dead Sources (SHARDS) on the CANDELS/GOODS-N field, to study the differential attenuation of the nebular emission with respect to the stellar continuum. The sample includes only galaxies with a counterpart in the infrared and $\mathrm{log}_{10}(M_{*}/\mathrm{M}_{\odot})$ $>$ 9, over the redshift interval 0.3 $\lesssim$ $z$ $\lesssim$ 1.5. Our methodology consists in the comparison of the star formation rates inferred from [OII] and H$\alpha$ emission lines with a robust quantification of the total star-forming activity (${SFR}_{\mathrm{TOT}}$) that is independently estimated based on both infrared and ultraviolet (UV) luminosities. We obtain $f$$=$$E(B-V)_{\mathrm{stellar}}$/$E(B-V)_{\mathrm{nebular}}$ $=$ 0.69$^{0.71}_{0.69}$ and 0.55$^{0.56}_{0.53}$ for [OII] and H$\alpha$, respectively. Our resulting $f$-factors display a significant positive correlation with the UV attenuation and shallower or not-significant trends with the stellar mass, the $SFR_{\mathrm{TOT}}$, the distance to the main sequence, and the redshift. Finally, our results favour an average nebular attenuation curve similar in shape to the typical dust curve of local starbursts.<br />Comment: 23 pages, 10 figures, 3 tables; accepted for publication in MNRAS
- Subjects :
- Astrophysics of Galaxies (astro-ph.GA)
FOS: Physical sciences
Astrophysics::Solar and Stellar Astrophysics
High Energy Physics::Experiment
Astrophysics::Earth and Planetary Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Astrophysics - Astrophysics of Galaxies
Astrophysics::Galaxy Astrophysics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Mon.Not.Roy.Astron.Soc., Mon.Not.Roy.Astron.Soc., 2022, 510 (2), ⟨10.1093/mnras/stab3558⟩
- Accession number :
- edsair.doi.dedup.....f1c0167b053fcc2b7904ba560021147c