NOAO >   Observing Info >   Approved Programs >   2020A-0335

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Program Information for 2020A-0335


PI: Lifan Wang, Texas A&M U., lifan@tamu.edu
Address: Physics Department, Physics and Astronomy, College Station, TX 77843 USA

CoI: Alex Kim, LBNL
CoI: Dietrich Baade, ESO
CoI: Segev Benzvi, University of Rochester
CoI: Kyle Dawson, University of Utah
CoI: Antonella Palmese, Fermi National Lab.
CoI: Xinyi Chen, Yale U.
CoI: Jeremy Mould, Swinburne U.
CoI: Syed Uddin, Carnegie Observatories
CoI: Xiaofeng Wang, Tsinghua University
CoI: Jeffrey Cooke, Swinburne U.
CoI: Ji-An Jiang, IPMU, Japan

Title: A Transient Survey with DECam and DESI

Abstract: We propose a transient survey that combines the wide field capabilities of the Dark Energy Camera (DECam) and the Dark Energy Survey Instrument (DESI). The survey consists of two DECam runs coordinated in area with DESI Science Validation (SV) in Feb. and June 2020. The SV phase is the only phase that DESI will be observing the same sky area repeatedly for calibration purposes. This offers a unique window of opportunity for transient observations. The proposed combined survey is able to acquire both high quality $gri$ photometric and spectroscopic data of nearly a thousand transients, of which $sim$ 400 are SNeIa in the redshift range of SNeIa (z $sim$ 0.1 - 0.3). This will more than double the current number of well-observed SNeIa in this redshift range. The survey is typically 3 magnitudes deeper than more local surveys such as ZTF and ATLAS. The complete set of transients with high quality photometry and spectroscopic classification include also Core-collapse SNe, SuperLuminous Supernovae, Tidal Disruption Events, kilonovae, noave, flaring stars, and AGNs. The depth of the survey ensures that the SN sample is not severely Malmquist biased and can be used as a baseline sample at this redshift range for event rate studies and for supernova cosmology.

Program Type: Standard/Extragalactic

Scheduled Nights:
Run 1 (2020A):  CT-4m/DECam -- 5n on Feb 27 2020, Mar 03 2020, Mar 14 2020, Mar 19 2020, Mar 26 2020, Apr 02 2020, Apr 08 2020, Apr 15 2020, Apr 21 2020, Apr 29 2020
Run 2 (2020A):  CT-4m/DECam -- 5n on May 15 2020, May 30 2020, Jun 16 2020, Jun 24 2020, Jun 28 2020, Jul 04 2020, Jul 12 2020, Jul 17 2020, Jul 24 2020, Jul 30 2020


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NOAO >   Observing Info >   Approved Programs >   2020A-0335

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