NOAO >   Observing Info >   Approved Programs >   2020B-0021

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Program Information for 2020B-0021


PI: Haojing Yan, U. of Missouri, Columbia, yanha@missouri.edu
Address: Physics Department, Columbia, MO 65211 USA

CoI: Zhiyuan Ma, U. Mass
CoI: Valentino Gonzalez, Universidad de Chile
CoI: Fuyan Bian, ESO
CoI: Christopher Conselice, University of Nottingham, UK
CoI: Ivano Baronchelli, Universita di Padova, Italy
CoI: Min S Yun, U. Mass
CoI: Hansung Gim, Arizona State U.
CoI: Yicheng Guo, U. of Missouri, Columbia
CoI: Jiasheng Huang, CASSACA/NAOC, China
CoI: Cheng Cheng, CASSACA/NAOC, China
CoI: Mattia Vaccari, University of the Western Cape, South Africa
CoI: Russ Taylor, University of Cape Town, South Africa
CoI: Fangxia An, University of the Western Cape, South Africa
CoI: Marcin Glowacki, University of the Western Cape, South Africa
CoI: Lucia Marchetti, University of Cape Town, South Africa

Title: DECam Imaging of the Akari Deep Field South

Abstract: We propose deep DECam imaging of the ADFS, which is an excellent candidate field for {it JWST}, {it Euclid} and {it WFIRST} to carry out deep observations and/or long-term monitoring in the southern sky. The ADFS is close to the South Ecliptic Pole and hence is within or close to the Continuous Viewing Zone (CVZ) of these IR missions, and has the lowest Zodiacal {it and} Galactic foreground among all known fields for extragalactic studies. It already has a wealth of multi-wavelength data, especially in the mid-IR-to-mm regime. Recently, our team has also obtained deep 1.4~GHz data using the MeerKAT (an SKA path-finder facility) through a pilot project in this field. However, the field is still lacking sufficient optical data. To remedy this problem, our DECam observations will cover the $sim 8$~deg$^2$ area that has {it Herschel}, FIR data from the HerMES program. This is part of an international collaboration to bring the multi-wavelength data in this field to the next level by new observations from optical to radio. Combined with the existing archival data (e.g. R-band), this program will allow us to derive photometric redshifts for the objects in the field to 1--2~mag deeper than what are offered by the DES, and will enable many follow-up studies well before the LSST data become available. In particular, it will also facilitate the selection of the most ideal pointing in this field for the envisioned {it JWST} monitoring program(s) that are to exploit its proximity to the CVZ. Our immediate science goals focus on the synergy with the radio (MeerKAT), mm (AzTEC), far-IR ({it Herschel}), and mid-IR ({it Spitzer}) data to study the host galaxy properties of dusty starbursts at high redshifts and the co-evolution of AGN and starburst. We wave the proprietary right, and will promptly release the image stacks and the catalog data. This is a resubmission of our 2019B proposal, which unfortunately seemed to lack the Technical Description section when it was distributed to the TAC due to an unknown reason. This in part led to its being turned down in 2019B. This resubmission has incorporated the TAC's comments from 2019B, and has 8 pages in total.

Program Type: Standard/Extragalactic

Scheduled Nights:
Run 1 (2020B):  CT-4m/DECam -- 4n on Oct 18 - Oct 21 2020, Dec 21 - Dec 24 2020
Run 1 (2021B):  CT-4m/DECam -- 2n on Jan 03 - Jan 05 2022, Jan 21 2022


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