NOAO >   Observing Info >   Approved Programs >   2018A-0420

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Program Information for 2018A-0420


PI: Haojing Yan, U. of Missouri, Columbia, yanha@missouri.edu
Address: 223 Physics Building, Department of Physics and Astronomy, University of Missouri, Columbia, MO, 65201 USA

CoI: zhiyuan Ma, U. of Missouri, Columbia
CoI: Rogier Windhorst, Arizona State U.
CoI: Seth Cohen, Arizona State U.
CoI: Rolf Jansen, Arizona State U.
CoI: Brenda Frye, U. of Arizona
CoI: Sebastien Rabien, Max-Planck-Institut für Extraterrestrische Physik

Title: Deep near-IR Imaging of IRAC Dark Field (IDF) - Preparing for the JWST era

Abstract: The IRAC Dark Field (IDF) has been continuously observed on an almost bi-weekly basis by Spitzer IRAC for calibration purpose since 2003, and thus has a unique, extremely long time baseline of >14 years in 3-5 micron. As it is very close to the North Ecliptic Pole (NEP) and thus within the Continuous Viewing Zone (CVZ) of JWST, it will very likely become a primer field for the time-domain science in the JWST era. In fact, its central region (11arcmin$times$ 11arcmin) is guaranteed to be observed by a JWST GTO program in NIRCam ("JWIDF'') to initiate potential JWST time-domain surveys in this area. It is conceivable that this field will attract many further observations across all wavelengths, and the combined data set will be suitable for a wide range of science. It already has a slew of ancillary data from Herschel SPIRE, HST ACS, Spitzer MIPS, and a few ground-based facilities. However, it still lacks sufficiently deep data in the near-IR. We propose to use LBT/LUCI to do deep imaging in JHKs to fill in this gap. While these data will be superseded by the JWST GTO observations, they will still be critical because (1) the much improved photometric redshift determination with these data now will enable us to define various samples suitable for other JWST GO programs and thus to expedite science production from JWST, and (2) they will serve as an important reference point for the future JWST time-domain observations. The obtained data will greatly enhance the legacy value of the existing data set. We only request time to finish J-band observation from this proposal. A companion proposal is submitted to the Arizona TAC to finish H and Ks-band.

Program Type: Standard/Extragalactic

Scheduled Nights:
Run 1 (2018A):  LBT-SVC/LUCI -- 10hrs


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