Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-14T23:28:16.362Z Has data issue: false hasContentIssue false
  • English
  • Français

Galactic outflows in star-forming galaxies at z ∼ 6 studied with deep UV spectra and ALMA emission line

Published online by Cambridge University Press:  10 June 2020

Yuma Sugahara Open the ORCID record for Yuma Sugahara [Opens in a new window] ,
Masami Ouchi ,
Yuichi Harikane ,
Nicolas Bouché ,
Peter D. Mitchell  and
Jérémy Blaizot
Yuma Sugahara
Affiliation:
Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8582, Japan email: sugayu@icrr.u-tokyo.ac.jp Department of Physics, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan
Masami Ouchi
Affiliation:
Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8582, Japan email: sugayu@icrr.u-tokyo.ac.jp Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8583, Japan
Yuichi Harikane
Affiliation:
Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8582, Japan email: sugayu@icrr.u-tokyo.ac.jp Department of Physics, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan
Nicolas Bouché
Affiliation:
Univ Lyon, Univ Lyon1, Ens de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574, F-69230 Saint-Genis-Laval, France
Peter D. Mitchell
Affiliation:
Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden, the Netherlands
Jérémy Blaizot
Affiliation:
Univ Lyon, Univ Lyon1, Ens de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574, F-69230 Saint-Genis-Laval, France
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present a velocity of galactic outflows in star-forming galaxies at the highest redshift, z ∼ 6, so far studied with metal absorption lines. Absorption-line studies of galactic outflows need well-determined redshifts, but there are few strong emission lines in the observed-frame optical spectra of galaxies at high redshifts. In this work, we use the systemic redshifts determined by the ALMA [CII]158 μm emission lines. The sample consists of seven Lyman break galaxies at 5.1 < z < 5.7 whose Keck/DEIMOS and ALMA data are available in the archive. The outflow maximum velocity (νmax) is estimated by a fitting of line profiles to metal absorption lines in a composite spectrum. We find that νmax monotonically increases from z ∼ 0 to 6 and that νmax tightly correlates with the halo circular velocity estimated from the stellar mass.

Keywords

galaxies: evolutiongalaxies: high-redshiftgalaxies: kinematics and dynamics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S341: Challenges in Panchromatic Modelling with Next Generation Facilities , November 2019 , pp. 307 - 308
Copyright
© International Astronomical Union 2020

References

Behroozi, P. S., Wechsler, R. H., & Conroy, C. 2013, ApJ, 770, 5710.1088/0004-637X/770/1/57CrossRefGoogle Scholar
Capak, P. L., Carilli, C., Jones, G., Casey, C. M., Riechers, D., Sheth, K., Carollo, C. M., Ilbert, O., et al. 2015, Nature, 522, 45510.1038/nature14500CrossRefGoogle Scholar
Muratov, A. L., Kereš, D., Faucher-Giguère, C.-A., Hopkins, P. F., Quataert, E., & Murray, N. 2015, MNRAS, 454, 269110.1093/mnras/stv2126CrossRefGoogle Scholar
Somerville, R. S. & Davé, R. 2015, ARAA, 53, 5110.1146/annurev-astro-082812-140951CrossRefGoogle Scholar
Sugahara, Y., Ouchi, M., Lin, L., Martin, C. L., Ono, Y., Harikane, Y., Shibuya, T., & Yan, R., et al. 2017, ApJ, 850, 5110.3847/1538-4357/aa956dCrossRefGoogle Scholar