SIMBAD references

2018ApJ...854L...7C - Astrophys. J., 854, L7-L7 (2018/February-2)

ALMA detection of extended [C II] emission in Himiko at z = 6.6.


Abstract (from CDS):

Himiko is one of the most luminous Lyα emitters at z = 6.595. It has three star-forming clumps detected in the rest-frame UV, with a total SFR = 20 M yr–1. We report the Atacama Large Millimeter/submillimeter Array (ALMA) detection of the [C II]158 µm line emission in this Galaxy with a significance of 8σ. The total [C II] luminosity (L_[C II]_ = 1.2 x 108 L) is fully consistent with the local L_[C II]_-SFR relation. The ALMA high-angular resolution reveals that the [C II] emission is made of two distinct components. The brightest [C II] clump is extended over 4 kpc and is located on the peak of the Lyα nebula, which is spatially offset by 1 kpc relative to the brightest UV clump. The second [C II] component is spatially unresolved (size <2 kpc) and coincident with one of the three UV clumps. While the latter component is consistent with the local L_[C II]_-SFR relation, the other components are scattered above and below the local relation. We shortly discuss the possible origin of the [C II] components and their relation with the star-forming clumps traced by the UV emission.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: high-redshift - infrared: ISM

Status at CDS:   Examining the need for a new acronym.

Simbad objects: 2

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