The ALPINE–ALMA [C ii] Survey: Multiwavelength Ancillary Data and Basic Physical Measurements
The ALPINE–ALMA [C ii] Survey: Multiwavelength Ancillary Data and Basic Physical Measurements
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DOI：
10.3847/1538-4365/ab7ccd
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发表时间：
2019-12
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通讯作者：
A. Faisst;D. Schaerer;D. Schaerer;B. Lemaux;P. Oesch;Y. Fudamoto;P. Cassata;P. Cassata;M. Béthermin;P. Capak;P. Capak;O. Fèvre;J. Silverman;J. Silverman;Lin Yan;M. Ginolfi;A. Koekemoer;L. Morselli;L. Morselli;R. Amorín;S. Bardelli;M. Boquien;G. Brammer;A. Cimatti;A. Cimatti;M. Dessauges-Zavadsky;S. Fujimoto;C. Gruppioni;N. Hathi;S. Hemmati;E. Ibar;G. Jones;Y. Khusanova;Y. Khusanova;F. Loiacono;F. Loiacono;F. Pozzi;M. Talia;M. Talia;L. Tasca;D. Riechers;D. Riechers;G. Rodighiero;G. Rodighiero;M. Romano;M. Romano;N. Scoville;S. Toft;L. Vallini;D. Vergani;G. Zamorani;E. Zucca
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作者：
A. Faisst;D. Schaerer;D. Schaerer;B. Lemaux;P. Oesch;Y. Fudamoto;P. Cassata;P. Cassata;M. Béthermin;P. Capak;P. Capak;O. Fèvre;J. Silverman;J. Silverman;Lin Yan;M. Ginolfi;A. Koekemoer;L. Morselli;L. Morselli;R. Amorín;S. Bardelli;M. Boquien;G. Brammer;A. Cimatti;A. Cimatti;M. Dessauges-Zavadsky;S. Fujimoto;C. Gruppioni;N. Hathi;S. Hemmati;E. Ibar;G. Jones;Y. Khusanova;Y. Khusanova;F. Loiacono;F. Loiacono;F. Pozzi;M. Talia;M. Talia;L. Tasca;D. Riechers;D. Riechers;G. Rodighiero;G. Rodighiero;M. Romano;M. Romano;N. Scoville;S. Toft;L. Vallini;D. Vergani;G. Zamorani;E. Zucca
本文介绍了ALMA大型早期C+观测项目（ALPINE）中星系的辅助数据和基本物理测量结果。这是第一个大型多波长观测项目，旨在表征118个主序星系在红移4.4 3.5σ和周围远红外连续体的气体和尘埃特性，并结合大量的光学和近红外数据。我们详细概述了星系的光谱数据和选择，以及地面和天基成像产品。此外，我们还提供了一些基本的测量数据，包括恒星质量，恒星形成速率（SFR），静止框架紫外线（UV）光度，紫外线连续斜率（β），吸收线红移，以及来自斯皮策颜色的Hα发射。我们发现ALPINE样本是通过光度法选择的4 < z < 6星系群的代表，只是稍微偏向于蓝色（Δβ ~ 0.2）。使用[]作为系统红移的示踪剂（在118个星系中有一个在z = 4.5处得到了证实，我们获得了光学[]λ3727Å发射），我们确认了Lyα的红移发射和蓝移吸收线与低红移的发现相似。通过将静帧紫外光谱叠加在[]静帧中，我们发现具有高比SFR的星系中的吸收线更蓝移，这可能表明有更强的风和流出。
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 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 [ ] as tracer of the systemic redshift (confirmed for one galaxy at z = 4.5 out of 118 for which we obtained optical [ ]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 [ ] 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.