First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Photometric Pipeline and Light Curve Data Release
- Brout, D.
- Sako, M.
- Scolnic, D.
- Kessler, R.
- D'Andrea, C.B.
- Davis, T.M.
- Hinton, S.R.
- Kim, A.G.
- Lasker, J.
- Macaulay, E.
- Möller, A.
- Nichol, R.C.
- Smith, M.
- Sullivan, M.
- Wolf, R.C.
- Allam, S.
- Bassett, B.A.
- Brown, P.
- Castander, F.J.
- Childress, M.
- Foley, R.J.
- Galbany, L.
- Herner, K.
- Kasai, E.
- March, M.
- Morganson, E.
- Nugent, P.
- Pan, Y.-C.
- Thomas, R.C.
- Tucker, B.E.
- Wester, W.
- Abbott, T.M.C.
- Annis, J.
- Avila, S.
- Bertin, E.
- Brooks, D.
- Burke, D.L.
- Carnero Rosell, A.
- Carrasco Kind, M.
- Carretero, J.
- Crocce, M.
- Cunha, C.E.
- Da Costa, L.N.
- Davis, C.
- De Vicente, J.
- Desai, S.
- Diehl, H.T.
- Doel, P.
- Eifler, T.F.
- Flaugher, B.
- Fosalba, P.
- Frieman, J.
- García-Bellido, J.
- Gaztanaga, E.
- Gerdes, D.W.
- Goldstein, D.A.
- Gruen, D.
- Gruendl, R.A.
- Gschwend, J.
- Gutierrez, G.
- Hartley, W.G.
- Hollowood, D.L.
- Honscheid, K.
- James, D.J.
- Kuehn, K.
- Kuropatkin, N.
- Lahav, O.
- Li, T.S.
- Lima, M.
- Marshall, J.L.
- Martini, P.
- Miquel, R.
- Nord, B.
- Plazas, A.A.
- Roodman, A.
- Rykoff, E.S.
- Sanchez, E.
- Scarpine, V.
- Schindler, R.
- Schubnell, M.
- Serrano, S.
- Sevilla-Noarbe, I.
- Soares-Santos, M.
- Sobreira, F.
- Suchyta, E.
- Swanson, M.E.C.
- Tarle, G.
- Thomas, D.
- Tucker, D.L.
- Walker, A.R.
- Yanny, B.
- Zhang, Y.
DOIAbstract
International audienceWe present griz light curves of 251 SNe Ia from the first 3 years of the Dark Energy Survey Supernova Program’s (DES-SN) spectroscopically classified sample. The photometric pipeline described in this paper produces the calibrated fluxes and associated uncertainties used in the cosmological parameter analysis by employing a scene modeling approach that simultaneously models a variable transient flux and temporally constant host galaxy. We inject artificial point sources onto DECam images to test the accuracy of our photometric method. Upon comparison of input and measured artificial supernova fluxes, we find that flux biases peak at 3 mmag. We require corrections to our photometric uncertainties as a function of host g...
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