@article{b59531a9dadd463c8bca333c7bbb4087,
title = "DECam survey for low-mass stars and substellar objects in the UCL and LCC subgroups of the Sco-Cen OB Association (SCOCENSUS)",
abstract = "Using images taken with the Dark Energy Camera (DECam), the first extensive survey of low mass and substellar objects is made in the 1/415-20 Myr Upper Centaurus Lupus (UCL) and Lower Centaurus Crux (LCC) subgroups of the Scorpius-Centaurus OB Association (Sco-Cen). Due to the size of our data set (>2Tb), we developed an extensive open source set of python libraries to reduce our images, including astrometry, coaddition, and PSF photometry. Our survey consists of 29 × 3 deg 2 fields in the UCL and LCC subgroups of Sco-Cen and the creation of a catalogue with over 11 million point sources. We create a prioritized list of UCL and LCC candidate members, with 118 best and another 348 good candidates. We show that the luminosity and mass functions of our low mass and substellar candidates are consistent with measurements for the younger Upper Scorpius subgroup and estimates of a universal IMF, with spectral types ranging from M1 down to L1.",
author = "Moolekamp, {Fred E.} and Mamajek, {Eric E.} and James, {David J.} and Luhman, {Kevin L.} and Pecaut, {Mark J.} and Metchev, {Stanmir A.} and Bell, {Cameron P.M.} and Denbo, {Sara R.}",
note = "Funding Information: FEM and EEM acknowledge support from National Science Foundation (NSF) award AST-1313029. Part of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (NASA). EEM acknowledges support from the Jet Propulsion Laboratory Exoplanetary Science Initiative and the NASA NExSS Program. KL was supported by grant AST- 1208239 from the NSF.We thank the staff of CTIO and the Blanco 4-m telescope in particular for their help and hospitality during the 2013 and 2015 observing runs. We thank Frank Valdes and Robert Gruendl for their help understanding theDECam community pipeline and calibration of photometry and astrometry. The Center for Exoplanets and Habitable Worlds is supported by the Pennsylvania State University, the Eberly College of Science, and the Pennsylvania Space Grant Consortium. We thank the anonymous referee for a very thorough report which significantly improved the paper. Funding Information: FEM and EEM acknowledge support from National Science Foundation (NSF) award AST-1313029. Part of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (NASA). EEM acknowledges support from the Jet Propulsion Laboratory Exoplanetary Science Initiative and the NASA NExSS Program. KL was supported by grant AST-1208239 from the NSF. We thank the staff of CTIO and the Blanco 4-m telescope in particular for their help and hospitality during the 2013 and 2015 observing runs. We thank Frank Valdes and Robert Gruendl for their help understanding the DECam community pipeline and calibration of photometry and astrometry. The Center for Exoplanets and Habitable Worlds is supported by the Pennsylvania State University, the Eberly College of Science, and the Pennsylvania Space Grant Consortium. We thank the anonymous referee for a very thorough report which significantly improved the paper. Publisher Copyright: {\textcopyright} 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.",
year = "2019",
month = apr,
day = "21",
doi = "10.1093/mnras/stz183",
language = "English (US)",
volume = "484",
pages = "5049--5071",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",
}