The ALPINE-ALMA [CII] survey: Survey strategy, observations, and sample properties of 118 star-forming galaxies at 4<z<6
| dc.contributor.author | Ibar, Eduardo | |
| dc.contributor.author | Mendez Hernandez, Hugo | |
| dc.date.accessioned | 2021-07-23T14:14:29Z | |
| dc.date.available | 2021-07-23T14:14:29Z | |
| dc.date.issued | 2020 | |
| dc.description.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]-158μm 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<z<6. We present the survey science goals, the observational strategy, and the sample selection of the 118 galaxies observed with ALMA, with an average beam minor axis of about 0.85 arcsec, or ∼5 kpc at the median redshift of the survey. The properties of the sample are described, including spectroscopic redshifts derived from the UV-rest frame, stellar masses, and star-formation rates obtained from a spectral energy distribution (SED) fitting. The observed properties derived from the ALMA data are presented and discussed in terms of the overall detection rate in [CII] and FIR continuum, with the observed signal-to-noise distribution. The sample is representative of the SFG population in the main sequence at these redshifts. The overall detection rate in [CII] is 64% for a signal-to-noise ratio (S/N) threshold larger than 3.5 corresponding to a 95% purity (40% detection rate for S/N>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. | en_ES |
| dc.identifier.doi | https://doi.org/10.1051/0004-6361/201936965 | |
| dc.identifier.uri | http://repositoriobibliotecas.uv.cl/handle/uvscl/2151 | |
| dc.language.iso | en | en_ES |
| dc.publisher | European Southern Observatory | en_ES |
| dc.source | Astronomy & Astrophysics | en_ES |
| dc.subject | GALAXIES: HIGH REDSHIFT | en_ES |
| dc.subject | GALAXIES: EVOLUTION | en_ES |
| dc.subject | GALAXIES: FORMATION | en_ES |
| dc.subject | GALAXIES: STAR FORMATION | en_ES |
| dc.title | The ALPINE-ALMA [CII] survey: Survey strategy, observations, and sample properties of 118 star-forming galaxies at 4<z<6 | en_ES |
| dc.type | Articulo | en_ES |
| uv.catalogador | RCR DIBRA | en_ES |