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LSST Observing Strategy White Paper: LSST Observations of WFIRST Deep Fields

Publication ,  Journal Article
Foley, RJ; Koekemoer, AM; Spergel, DN; Bianco, FB; Capak, P; Dai, L; Dore, O; Fazio, GG; Ferguson, H; Filippenko, AV; Frye, B; Galbany, L ...
November 30, 2018

The Wide-Field Infrared Survey Telescope (WFIRST) is expected to launch in the mid-2020s. With its wide-field near-infrared (NIR) camera, it will survey the sky to unprecedented detail. As part of normal operations and as the result of multiple expected dedicated surveys, WFIRST will produce several relatively wide-field (tens of square degrees) deep (limiting magnitude of 28 or fainter) fields. In particular, a planned supernova survey is expected to image 3 deep fields in the LSST footprint roughly every 5 days over 2 years. Stacking all data, this survey will produce, over all WFIRST supernova fields in the LSST footprint, ~12-25 deg^2 and ~5-15 deg^2 regions to depths of ~28 mag and ~29 mag, respectively. We suggest LSST undertake mini-surveys that will match the WFIRST cadence and simultaneously observe the supernova survey fields during the 2-year WFIRST supernova survey, achieving a stacked depth similar to that of the WFIRST data. We also suggest additional observations of these same regions throughout the LSST survey to get deep images earlier, have long-term monitoring in the fields, and produce deeper images overall. These fields will provide a legacy for cosmology, extragalactic, and transient/variable science.

Duke Scholars

Publication Date

November 30, 2018
 

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Foley, R. J., Koekemoer, A. M., Spergel, D. N., Bianco, F. B., Capak, P., Dai, L., … Wollack, E. J. (2018). LSST Observing Strategy White Paper: LSST Observations of WFIRST Deep Fields.
Foley, R. J., A. M. Koekemoer, D. N. Spergel, F. B. Bianco, P. Capak, L. Dai, O. Dore, et al. “LSST Observing Strategy White Paper: LSST Observations of WFIRST Deep Fields,” November 30, 2018.
Foley RJ, Koekemoer AM, Spergel DN, Bianco FB, Capak P, Dai L, et al. LSST Observing Strategy White Paper: LSST Observations of WFIRST Deep Fields. 2018 Nov 30;
Foley RJ, Koekemoer AM, Spergel DN, Bianco FB, Capak P, Dai L, Dore O, Fazio GG, Ferguson H, Filippenko AV, Frye B, Galbany L, Gawiser E, Gronwall C, Hathi NP, Hirata C, Hounsell R, Jha SW, Kim AG, Kelly PL, Kruk JW, Malhotra S, Mandel KS, Margutti R, Marrone D, McQuinn KBW, Melchior P, Moustakas L, Newman JA, Peek JEG, Perlmutter S, Rhodes JD, Robertson B, Rubin D, Scolnic D, Somerville R, Street R, Wang Y, Whalen DJ, Windhorst RA, Wollack EJ. LSST Observing Strategy White Paper: LSST Observations of WFIRST Deep Fields. 2018 Nov 30;

Publication Date

November 30, 2018