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arXiv · 1910.09517

The ALPINE-ALMA [CII] survey: Survey strategy, observations and sample properties of 118 star-forming galaxies at $4<z<6$

O. Le Fèvre·M. Béthermin·A. Faisst·G. Jones·P. Capak·P. Cassata·J. D. Silverman·D. Schaerer·L. Yan·the ALPINE team
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Abstract

The ALMA-ALPINE [CII] survey is aimed at characterizing the properties of a sample of normal star-forming galaxies (SFGs). The ALMA Large Program to INvestigate (ALPINE) features 118 galaxies observed in the [CII]-158$\mu$m line and far infrared (FIR) continuum emission during the period of rapid mass assembly, right after the end of the HI reionization, at redshifts of 4 5). Based on a visual inspection of the [CII] data cubes together with the large wealth of ancillary data, we find a surprisingly wide range of galaxy types, including 40% that are mergers, 20% extended and dispersion-dominated, 13% compact, and 11% rotating discs, with the remaining 16% too faint to be classified. This diversity indicates that a wide array of physical processes must be at work at this epoch, first and foremost, those of galaxy mergers. This paper sets a reference sample for the gas distribution in normal SFGs at 4<z<6.

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O. Le Fèvre, M. Béthermin, A. Faisst, G. Jones, P. Capak, P. Cassata, J. D. Silverman, D. Schaerer, L. Yan, the ALPINE team. 2019-10-21. The ALPINE-ALMA [CII] survey: Survey strategy, observations and sample properties of 118 star-forming galaxies at $4<z<6$. https://doi.org/10.1051/0004-6361%2F201936965

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