Photometric Redshifts in the W-CDF-S and ELAIS-S1 Fields Based on Forced Photometry from 0.36 to 4.5 Microns,Research Notes of the AAS

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Photometric Redshifts in the W-CDF-S and ELAIS-S1 Fields Based on Forced Photometry from 0.36 to 4.5 Microns
Research Notes of the AAS Pub Date : 2021-03-24 , DOI: 10.3847/2515-5172/abf050
Fan Zou _{1,

2} , Guang Yang _{3,

4} , W. N. Brandt _{1,

2,

5} , Qingling Ni _{1,

2} , Franz E. Bauer _{6,

7,

8} , Giovanni Covone _{9,

10,

11} , Mark Lacy ₁₂ , Nicola R. Napolitano ₉ , Kristina Nyland ₁₃ , Maurizio Paolillo _{9,

10,

11} , Mario Radovich ₁₄ , Marilena Spavone ₉ , Mattia Vaccari _{15,

16}

Affiliation

Department of Astronomy and Astrophysics, 525 Davey Lab, The Pennsylvania State University, University Park, PA 16802, USA
Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, PA 16802, USA
Department of Physics and Astronomy, Texas A&M University, College Station, TX, 77843-4242, USA
George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, TX, 77843-4242, USA
Department of Physics, 104 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
Instituto de Astrofsica, Facultad de Fsica, Pontificia Universidad Catlica de Chile Av. Vicua Mackenna 4860, 782-0436 Macul, Santiago, Chile
National Radio Astronomy Observatory, Pete V. Domenici Array Science Center, P.O. Box O, Socorro, NM 87801, USA
Space Science Institute, 4750 Walnut Street, Suite 205, Boulder, CO 80301, USA
INAF—Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, I-80131, Napoli, Italy
Dipartimento di Fisica, Universit di Napoli “Federico II,” via Cinthia 9, I-80126 Napoli, Italy
INFN—Sezione di Napoli, via Cinthia 9, I-80126 Napoli, Italy
National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903, USA
National Research Council, resident at the U.S. Naval Research Laboratory, 4555 Overlook Ave. SW, Washington, DC 20375, USA
INAF—Osservatorio Astronomico di Padova, vicolo Osservatorio, 5 I-35122 Padova, Italy
Inter-university Institute for Data Intensive Astronomy, Department of Physics and Astronomy, University of the Western Cape, Robert Sobukwe Road, 7535 Bellville, Cape Town, South Africa
INAF—Istituto di Radioastronomia, via Gobetti 101, I-40129 Bologna, Italy

The W-CDF-S and ELAIS-S1 fields will be two of the LSST Deep Drilling fields, but the availability of spectroscopic redshifts within these two fields is still limited on deg² scales. To prepare for future science, we use EAZY to estimate photometric redshifts (photo-zs) in these two fields based on forced-photometry catalogs. Our photo-z catalog consists of ∼0.8 million sources covering 4.9 deg² in W-CDF-S and ∼0.8 million sources covering 3.4 deg² in ELAIS-S1, among which there are ∼0.6 (W-CDF-S) and ∼0.4 (ELAIS-S1) million sources having signal-to-noise ratio (S/N) >5 detections in more than 5 bands. By comparing photo-zs and available spectroscopic redshifts, we demonstrate the general reliability of our photo-z measurements. Our photo-z catalog is publicly available at 10.5281/zenodo.46031780

中文翻译：

W-CDF-S 和 ELAIS-S1 场中的光度红移基于强制光度法从 0.36 到 4.5 微米

W-CDF-S 和 ELAIS-S1 油田将是 LSST 深钻油田中的两个油田，但这两个油田内的光谱红移的可用性在²度尺度上仍然受到限制。为了为未来的科学做准备，我们使用EAZY来估计基于强制测光目录的这两个领域的光度红移 ( photo - z s)。我们的photo- z目录由覆盖W-CDF-S 中4.9 度^{2 的}约 80万个源和覆盖ELAIS-S1 中3.4 度²的约 80万个源组成，其中有 ∼0.6 (W-CDF-S) 和 ∼ 0.4 (ELAIS-S1) 万个信噪比 (S/N) > 5 检测的超过 5 个波段的源。通过比较 photo- zs 和可用的光谱红移，我们证明了我们的 photo- z测量的一般可靠性。我们的photo- z目录可在 10.5281/zenodo.46031780 公开获取

更新日期：2021-03-24

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