A Search of the Full Six Years of the Dark Energy Survey for Outer Solar System Objects

Bernardinelli, Pedro H.; Bernstein, Gary M.; Sako, Masao; Yanny, Brian; Aguena, M.; Allam, S.; Andrade-Oliveira, F.; Bertin, E.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Rosell, A. Carnero; Carrasco Kind, M.; Carretero, J.; Conselice, C.; Costanzi, M.; da Costa, L. N.; De Vicente, J.; Desai, S.; Diehl, H. T.; Dietrich, J. P.; Doel, P.; Eckert, K.; Everett, S.; Ferrero, I.; Flaugher, B.; Fosalba, P.; Frieman, J.; García-Bellido, J.; Gerdes, D. W.; Gruen, D.; Gruendl, R. A.; Gschwend, J.; Hinton, S. R.; Hollowood, D. L.; Honscheid, K.; James, D. J.; Kent, S.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Maia, M. G.; March, M.; Menanteau, F.; Miquel, R.; Morgan, R.; Myles, J.; Ogando, R. C.; Palmese, A.; Paz-Chinchón, F.; Pieres, A.; Malagón, A. Plazas; Romer, A. K.; Roodman, A.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, I.; Smith, M.; Soares-Santos, M.; Suchyta, E.; Swanson, M. C.; Tarle, G.; To, C.; Varga, T. N.; Walker, A. R.

doi:10.3847/1538-4365/ac3914

A Search of the Full Six Years of the Dark Energy Survey for Outer Solar System Objects

Journal Article · Tue Feb 08 23:00:00 EST 2022 · The Astrophysical Journal. Supplement Series

DOI:https://doi.org/10.3847/1538-4365/ac3914· OSTI ID:1833281

^[1]; ; ; ; ; Allam, S.; Andrade-Oliveira, F.; ; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Rosell, A. Carnero; Carrasco Kind, M.; ; ; ; da Costa, L. N.; De Vicente, J.; Desai, S.; more »

University of Pennsylvania, Philadelphia, PA (United States); DES Collaboration. et al.

We present a search for outer solar system objects in the 6 yr of data from the Dark Energy Survey (DES). The DES covered a contiguous 5000 deg² of the southern sky with ≈80,000 3 deg² exposures in the grizY filters between 2013 and 2019. This search yielded 812 trans-Neptunian objects (TNOs), one Centaur and one Oort cloud comet, 458 reported here for the first time. We present methodology that builds upon our previous search on the first 4 yr of data. All images were reprocessed with an optimized detection pipeline that leads to an average completeness gain of 0.47 mag per exposure, as well as improved transient catalog production and algorithms for linkage of detections into orbits. All objects were verified by visual inspection and by the “sub-threshold significance,” the signal-to-noise ratio in the stack of images in which its presence is indicated by the orbit, but no detection was reported. This yields a pure catalog complete to r ≈ 23.8 mag and distances 29 < d < 2500 au. The TNOs have minimum (median) of 7 (12) nights’ detections and arcs of 1.1 (4.2) yr, and will have grizY magnitudes available in a further publication. We present software for simulating our observational biases for comparisons of models to our detections. Initial inferences demonstrating the catalog’s statistical power are: the data are inconsistent with the CFEPS-L7 model for the classical Kuiper Belt; the 16 “extreme” TNOs (a > 150 au, q > 30 au) are consistent with the null hypothesis of azimuthal isotropy; and nonresonant TNOs with q > 38 au, a > 50 au show a significant tendency to be sunward of major mean-motion resonances.

View Accepted Manuscript (DOE)

Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: DES Collaboration

Grant/Contract Number:: AC02-07CH11359; AC05-00OR22725

OSTI ID:: 1833281

Alternate ID(s):: OSTI ID: 1854011
OSTI ID: 1887674
OSTI ID: 1983777

Report Number(s):: FERMILAB-PUB--21-390-AE; DES--2021-0661; arXiv:2109.03758; oai:inspirehep.net:1925036

Journal Information:: The Astrophysical Journal. Supplement Series, Journal Name: The Astrophysical Journal. Supplement Series Journal Issue: 2 Vol. 258; ISSN 0067-0049

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

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Testing the Isotropy of the Dark Energy Survey’s Extreme Trans-Neptunian Objects Bernardinelli, Pedro H.; Bernstein, Gary M.; Sako, Masao The Planetary Science Journal, Vol. 1, Issue 2 https://doi.org/10.3847/PSJ/ab9d80	journal	July 2020
No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects Napier, K. J.; Gerdes, D. W.; Lin, Hsing Wen The Planetary Science Journal, Vol. 2, Issue 2 https://doi.org/10.3847/PSJ/abe53e	journal	March 2021

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