17 documents found, page 1 of 2
Galaxy clustering in harmonic space from the dark energy survey year 1 data: co...
Andrade-Oliveira, F. [UNESP]; Camacho, H. [UNESP]; Faga, L.; Gomes, R.; Rosenfeld, R. [UNESP]; Troja, A. [UNESP]; Alves, O. [UNESP]; Doux, C.Made available in DSpace on 2022-04-29T08:31:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-08-01; We perform an analysis in harmonic space of the Dark Energy Survey Year 1 Data (DES-Y1) galaxy clustering photometric data using products obtained for the real-space analysis. We test our pipeline with a suite of lognormal simulations, which are used to validate scale cuts in harmonic space as well as t...
Galaxy morphological classification catalogue of the Dark Energy Survey Year 3 ...
Cheng, Ting-Yun; Conselice, Christopher J.; Aragón-Salamanca, Alfonso; Aguena, M.; Allam, S.; Andrade-Oliveira, F. [UNESP]; Annis, J.; Bluck, A. F.L.Made available in DSpace on 2022-04-29T08:32:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-11-01; We present in this paper one of the largest galaxy morphological classification catalogues to date, including over 20 million galaxies, using the Dark Energy Survey (DES) Year 3 data based on convolutional neural networks (CNNs). Monochromatic i-band DES images with linear, logarithmic, and gradient sca...
OzDES Reverberation Mapping Programme: The first Mg ii lags from 5 yr of monito...
Yu, Zhefu; Martini, Paul; Penton, A.; Davis, T. M.; Malik, U.; Lidman, C.; Tucker, B. E.; Sharp, R.; Kochanek, C. S.; Peterson, B. M.; Aguena, M.Made available in DSpace on 2022-04-29T08:35:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-11-01; European Research Council; National Science Foundation; Reverberation mapping is a robust method to measure the masses of supermassive black holes outside of the local Universe. Measurements of the radius-luminosity (R-L) relation using the Mg ii emission line are critical for determining these masses n...
Galaxy–galaxy lensing with the DES-CMASS catalogue: measurement and constraints...
Lee, S.; Troxel, M. A.; Choi, A.; Elvin-Poole, J.; Hirata, C.; Honscheid, K.; Huff, E. M.; MacCrann, N.; Ross, A. J.; Eifler, T. F.; Chang, C.Made available in DSpace on 2022-04-29T08:37:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01; The DMASS sample is a photometric sample from the DES Year 1 data set designed to replicate the properties of the CMASS sample from BOSS, in support of a joint analysis of DES and BOSS beyond the small overlapping area. In this paper, we present the measurement of galaxy–galaxy lensing using the DMASS s...
Lensing without borders - I. A blind comparison of the amplitude of galaxy-gala...
Leauthaud, A.; Amon, A.; Singh, S.; Gruen, D.; Lange, J. U.; Huang, S.; Robertson, N. C.; Varga, T. N.; Luo, Y.; Heymans, C.; Hildebrandt, H.; Blake, C.Made available in DSpace on 2022-04-29T08:40:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-03-01; SLAC National Accelerator Laboratory; Lensing without borders is a cross-survey collaboration created to assess the consistency of galaxy-galaxy lensing signals (Δς) across different data sets and to carry out end-to-end tests of systematic errors. We perform a blind comparison of the amplitude of Δς us...
Dark Energy Survey Year 3 results: Galaxy clustering and systematics treatment ...
Rodríguez-Monroy, M.; Weaverdyck, N.; Elvin-Poole, J.; Crocce, M.; Carnero Rosell, A.; Andrade-Oliveira, F. [UNESP]; Avila, S.; Bechtol, K.Made available in DSpace on 2022-04-29T08:40:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-04-01; In this work, we present the galaxy clustering measurements of the two DES lens galaxy samples: a magnitude-limited sample optimized for the measurement of cosmological parameters, maglim, and a sample of luminous red galaxies selected with the redmagic algorithm. maglim/redmagic sample contains over 10...
Dark Energy Survey Year 3 results: Marginalization over redshift distribution u...
Cordero, Juan P.; Harrison, Ian; Rollins, Richard P.; Bernstein, G. M.; Bridle, S. L.; Alarcon, A.; Alves, O. [UNESP]; Amon, A.Made available in DSpace on 2022-04-29T08:40:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-04-01; Cosmological information from weak lensing surveys is maximized by sorting source galaxies into tomographic redshift subsamples. Any uncertainties on these redshift distributions must be correctly propagated into the cosmological results. We present hyperrank, a new method for marginalizing over redshif...
A Search of the Full Six Years of the Dark Energy Survey for Outer Solar System...
Bernardinelli, Pedro H.; Bernstein, Gary M.; Sako, Masao; Yanny, Brian; Aguena, M.; Allam, S.; Andrade-Oliveira, F. [UNESP]; Bertin, E.; Brooks, D.Made available in DSpace on 2022-04-29T08:40:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01; 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 Centa...
Dark Energy Survey year 1 results: Cosmological constraints from galaxy cluster...
Abbott, T. M.C.; Abdalla, F. B.; Alarcon, A.; Aleksić, J.; Allam, S.; Allen, S.; Amara, A.; Annis, J.; Asorey, J.; Avila, S.; Bacon, D.; Balbinot, E.Made available in DSpace on 2022-04-29T08:27:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-08-15; We present cosmological results from a combined analysis of galaxy clustering and weak gravitational lensing, using 1321 deg2 of griz imaging data from the first year of the Dark Energy Survey (DES Y1). We combine three two-point functions: (i) the cosmic shear correlation function of 26 million source ...
Cosmological Constraints from Multiple Probes in the Dark Energy Survey
Abbott, T. M.C.; Alarcon, A.; Allam, S.; Andersen, P.; Andrade-Oliveira, F. [UNESP]; Annis, J.; Asorey, J.; Avila, S.; Bacon, D.; Banik, N.Made available in DSpace on 2022-04-29T08:28:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-05-01; The combination of multiple observational probes has long been advocated as a powerful technique to constrain cosmological parameters, in particular dark energy. The Dark Energy Survey has measured 207 spectroscopically confirmed type Ia supernova light curves, the baryon acoustic oscillation feature, w...