The Lockman-SpReSO project. Galactic flows in a sample of far-infrared galaxies
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| Formato: | Preprint |
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2024
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| author | González-Otero, Mauro Padilla-Torres, Carmen P. González-Serrano, J. Ignacio Cepa, Jordi García, Ana María Pérez González, J. Jesús Benítez, Erika Bongiovanni, Ángel Cerviño, Miguel Cruz-González, Irene Gallego, Jesús Herrera-Endoqui, Martín Ibarra-Medel, Héctor J. Krongold, Yair Lara-López, Maritza A. Nadolny, Jakub Negrete, C. Alenka Pérez-Martínez, Ricardo Povic, Mirjana Sánchez-Portal, Miguel de Diego, Bernabé Cedrés José A. Hernández-Toledo, Héctor Martínez, Rocío Navarro |
| author_facet | González-Otero, Mauro Padilla-Torres, Carmen P. González-Serrano, J. Ignacio Cepa, Jordi García, Ana María Pérez González, J. Jesús Benítez, Erika Bongiovanni, Ángel Cerviño, Miguel Cruz-González, Irene Gallego, Jesús Herrera-Endoqui, Martín Ibarra-Medel, Héctor J. Krongold, Yair Lara-López, Maritza A. Nadolny, Jakub Negrete, C. Alenka Pérez-Martínez, Ricardo Povic, Mirjana Sánchez-Portal, Miguel de Diego, Bernabé Cedrés José A. Hernández-Toledo, Héctor Martínez, Rocío Navarro |
| contents | Methods. We performed measurements of the \MgII, \MgI, \FeIIa, \FeIIb, and \FeIIc\ spectral lines present in the spectra of the selected sample to determine the EW and velocity of the flows observed in the star-forming galaxies. Subsequently, we conducted $10^7$ bootstrap simulations using Spearman's rank correlation coefficient ($ρ_s$) to explore correlations with galaxy properties. Furthermore, we calculated the covering factor, gas density, and optical depth for the measured \ion{Fe}{II} doublets.
Results. Our analysis revealed strong correlations between the EW of \ion{Mg}{II} lines and both $M_{*}$ ($ρ_s=0.43$, 4.5$σ$) and SFR ($ρ_s=0.42$, 4.4$σ$). For the \ion{Fe}{II} lines, we observed strong correlations between the EW and SFR ($ρ_s\sim0.65$, $>3.9σ$), with a weaker correlation for $M_{*}$ ($ρ_s\sim0.35$, $>1.9σ$). No notable correlations were found between velocity measurements of \ion{Mg}{II} line and $M_{*}$, SFR, or sSFR of the objects ($ρ_s\sim0.1)$. However, a negative strong correlation was found between the velocity of the \ion{Fe}{II} lines and the SFR of the galaxies ($ρ_s\sim-0.45$, $\sim3σ$). Our results align with previous studies but studying FIR-selected objects. Finally, we detected a candidate \textit{loitering outflow}, a recently discovered subtype of FeLoBAL quasar, at redshift of $z=1.4399$, exhibiting emission in \ion{C}{III}] and low line velocities ($|v|\lesssim$ 200 km/s). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_04483 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The Lockman-SpReSO project. Galactic flows in a sample of far-infrared galaxies González-Otero, Mauro Padilla-Torres, Carmen P. González-Serrano, J. Ignacio Cepa, Jordi García, Ana María Pérez González, J. Jesús Benítez, Erika Bongiovanni, Ángel Cerviño, Miguel Cruz-González, Irene Gallego, Jesús Herrera-Endoqui, Martín Ibarra-Medel, Héctor J. Krongold, Yair Lara-López, Maritza A. Nadolny, Jakub Negrete, C. Alenka Pérez-Martínez, Ricardo Povic, Mirjana Sánchez-Portal, Miguel de Diego, Bernabé Cedrés José A. Hernández-Toledo, Héctor Martínez, Rocío Navarro Astrophysics of Galaxies Methods. We performed measurements of the \MgII, \MgI, \FeIIa, \FeIIb, and \FeIIc\ spectral lines present in the spectra of the selected sample to determine the EW and velocity of the flows observed in the star-forming galaxies. Subsequently, we conducted $10^7$ bootstrap simulations using Spearman's rank correlation coefficient ($ρ_s$) to explore correlations with galaxy properties. Furthermore, we calculated the covering factor, gas density, and optical depth for the measured \ion{Fe}{II} doublets. Results. Our analysis revealed strong correlations between the EW of \ion{Mg}{II} lines and both $M_{*}$ ($ρ_s=0.43$, 4.5$σ$) and SFR ($ρ_s=0.42$, 4.4$σ$). For the \ion{Fe}{II} lines, we observed strong correlations between the EW and SFR ($ρ_s\sim0.65$, $>3.9σ$), with a weaker correlation for $M_{*}$ ($ρ_s\sim0.35$, $>1.9σ$). No notable correlations were found between velocity measurements of \ion{Mg}{II} line and $M_{*}$, SFR, or sSFR of the objects ($ρ_s\sim0.1)$. However, a negative strong correlation was found between the velocity of the \ion{Fe}{II} lines and the SFR of the galaxies ($ρ_s\sim-0.45$, $\sim3σ$). Our results align with previous studies but studying FIR-selected objects. Finally, we detected a candidate \textit{loitering outflow}, a recently discovered subtype of FeLoBAL quasar, at redshift of $z=1.4399$, exhibiting emission in \ion{C}{III}] and low line velocities ($|v|\lesssim$ 200 km/s). |
| title | The Lockman-SpReSO project. Galactic flows in a sample of far-infrared galaxies |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2401.04483 |