The ALPINE-ALMA [C II] Survey: Multiwavelength Ancillary Data and Basic Physical Measurements

April 2020 • 2020ApJS..247...61F

Authors • Faisst, A. L. • Schaerer, D. • Lemaux, B. C. • Oesch, P. A. • Fudamoto, Y. • Cassata, P. • Béthermin, M. • Capak, P. L. • Le Fèvre, O. • Silverman, J. D. • Yan, L. • Ginolfi, M. • Koekemoer, A. M. • Morselli, L. • Amorín, R. • Bardelli, S. • Boquien, M. • Brammer, G. • Cimatti, A. • Dessauges-Zavadsky, M. • Fujimoto, S. • Gruppioni, C. • Hathi, N. P. • Hemmati, S. • Ibar, E. • Jones, G. C. • Khusanova, Y. • Loiacono, F. • Pozzi, F. • Talia, M. • Tasca, L. A. M. • Riechers, D. A. • Rodighiero, G. • Romano, M. • Scoville, N. • Toft, S. • Vallini, L. • Vergani, D. • Zamorani, G. • Zucca, E.

Abstract • We present the ancillary data and basic physical measurements for the galaxies in the ALMA Large Program to Investigate C⁺ at Early Times (ALPINE) survey - the first large multiwavelength survey that aims at characterizing the gas and dust properties of 118 main-sequence galaxies at redshifts 4.4 < z < 5.9 via the measurement of [C II] emission at 158 μm (64% at >3.5σ) and the surrounding far-infrared continuum in conjunction with a wealth of optical and near-infrared data. We outline in detail the spectroscopic data and selection of the galaxies as well as the ground- and space-based imaging products. In addition, we provide several basic measurements including stellar masses, star formation rates (SFR), rest-frame ultra-violet (UV) luminosities, UV continuum slopes (β), and absorption line redshifts, as well as Hα emission derived from Spitzer colors. We find that the ALPINE sample is representative of the 4 < z < 6 galaxy population selected by photometric methods and only slightly biased toward bluer colors (Δβ ∼ 0.2). Using [C II] as tracer of the systemic redshift (confirmed for one galaxy at z = 4.5 out of 118 for which we obtained optical [O III]λ3727Å emission), we confirm redshifted Lyα emission and blueshifted absorption lines similar to findings at lower redshifts. By stacking the rest-frame UV spectra in the [C II] rest frame, we find that the absorption lines in galaxies with high specific SFR are more blueshifted, which could be indicative of stronger winds and outflows.

Links

• PREPRINT http://arxiv.org/abs/1912.01621
• NED https://ned.ipac.caltech.edu/uri/NED::InRefcode/2020ApJS..247...61F
• ELECTR https://doi.org/10.3847%2F1538-4365%2Fab7ccd
• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2020ApJS..247...61F
• PDF https://stacks.iop.org/0067-0049/247/61/pdf
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