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Article ; Online: Constraints on Dark Matter Properties from Observations of Milky Way Satellite Galaxies.

Nadler, E O / Drlica-Wagner, A / Bechtol, K / Mau, S / Wechsler, R H / Gluscevic, V / Boddy, K / Pace, A B / Li, T S / McNanna, M / Riley, A H / García-Bellido, J / Mao, Y-Y / Green, G / Burke, D L / Peter, A / Jain, B / Abbott, T M C / Aguena, M /

Allam, S / Annis, J / Avila, S / Brooks, D / Carrasco Kind, M / Carretero, J / Costanzi, M / da Costa, L N / De Vicente, J / Desai, S / Diehl, H T / Doel, P / Everett, S / Evrard, A E / Flaugher, B / Frieman, J / Gerdes, D W / Gruen, D / Gruendl, R A / Gschwend, J / Gutierrez, G / Hinton, S R / Honscheid, K / Huterer, D / James, D J / Krause, E / Kuehn, K / Kuropatkin, N / Lahav, O / Maia, M A G / Marshall, J L / Menanteau, F / Miquel, R / Palmese, A / Paz-Chinchón, F / Plazas, A A / Romer, A K / Sanchez, E / Scarpine, V / Serrano, S / Sevilla-Noarbe, I / Smith, M / Soares-Santos, M / Suchyta, E / Swanson, M E C / Tarle, G / Tucker, D L / Walker, A R / Wester, W

Physical review letters

2021 Volume 126, Issue 9, Page(s) 91101

Abstract: We perform a comprehensive study of Milky Way (MW) satellite galaxies to constrain the fundamental properties of dark matter (DM). This analysis fully incorporates inhomogeneities in the spatial distribution and detectability of MW satellites and ... ...

Abstract	We perform a comprehensive study of Milky Way (MW) satellite galaxies to constrain the fundamental properties of dark matter (DM). This analysis fully incorporates inhomogeneities in the spatial distribution and detectability of MW satellites and marginalizes over uncertainties in the mapping between galaxies and DM halos, the properties of the MW system, and the disruption of subhalos by the MW disk. Our results are consistent with the cold, collisionless DM paradigm and yield the strongest cosmological constraints to date on particle models of warm, interacting, and fuzzy dark matter. At 95% confidence, we report limits on (i) the mass of thermal relic warm DM, m_{WDM}>6.5 keV (free-streaming length, λ_{fs}≲10h^{-1} kpc), (ii) the velocity-independent DM-proton scattering cross section, σ_{0}<8.8×10^{-29} cm^{2} for a 100 MeV DM particle mass [DM-proton coupling, c_{p}≲(0.3 GeV)^{-2}], and (iii) the mass of fuzzy DM, m_{ϕ}>2.9×10^{-21} eV (de Broglie wavelength, λ_{dB}≲0.5 kpc). These constraints are complementary to other observational and laboratory constraints on DM properties.
Language	English
Publishing date	2021-03-22
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.126.091101
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Article: Impaired associative learning in schizophrenia: behavioral and computational studies.

Diwadkar, Vaibhav A / Flaugher, Brad / Jones, Trevor / Zalányi, László / Ujfalussy, Balázs / Keshavan, Matcheri S / Erdi, Péter

Cognitive neurodynamics

2008 Volume 2, Issue 3, Page(s) 207–219

Abstract: Associative learning is a central building block of human cognition and in large part depends on mechanisms of synaptic plasticity, memory capacity and fronto-hippocampal interactions. A disorder like schizophrenia is thought to be characterized by ... ...

Abstract	Associative learning is a central building block of human cognition and in large part depends on mechanisms of synaptic plasticity, memory capacity and fronto-hippocampal interactions. A disorder like schizophrenia is thought to be characterized by altered plasticity, and impaired frontal and hippocampal function. Understanding the expression of this dysfunction through appropriate experimental studies, and understanding the processes that may give rise to impaired behavior through biologically plausible computational models will help clarify the nature of these deficits. We present a preliminary computational model designed to capture learning dynamics in healthy control and schizophrenia subjects. Experimental data was collected on a spatial-object paired-associate learning task. The task evinces classic patterns of negatively accelerated learning in both healthy control subjects and patients, with patients demonstrating lower rates of learning than controls. Our rudimentary computational model of the task was based on biologically plausible assumptions, including the separation of dorsal/spatial and ventral/object visual streams, implementation of rules of learning, the explicit parameterization of learning rates (a plausible surrogate for synaptic plasticity), and learning capacity (a plausible surrogate for memory capacity). Reductions in learning dynamics in schizophrenia were well-modeled by reductions in learning rate and learning capacity. The synergy between experimental research and a detailed computational model of performance provides a framework within which to infer plausible biological bases of impaired learning dynamics in schizophrenia.
Language	English
Publishing date	2008-06-16
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2276890-7
ISSN	1871-4099 ; 1871-4080
ISSN (online)	1871-4099
ISSN	1871-4080
DOI	10.1007/s11571-008-9054-0
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Article ; Online: Detection of Cross-Correlation between Gravitational Lensing and γ Rays.

Ammazzalorso, S / Gruen, D / Regis, M / Camera, S / Ando, S / Fornengo, N / Bechtol, K / Bridle, S L / Choi, A / Eifler, T F / Gatti, M / MacCrann, N / Omori, Y / Samuroff, S / Sheldon, E / Troxel, M A / Zuntz, J / Carrasco Kind, M / Annis, J /

Avila, S / Bertin, E / Brooks, D / Burke, D L / Carnero Rosell, A / Carretero, J / Castander, F J / Costanzi, M / da Costa, L N / De Vicente, J / Desai, S / Diehl, H T / Dietrich, J P / Doel, P / Everett, S / Flaugher, B / Fosalba, P / García-Bellido, J / Gaztanaga, E / Gerdes, D W / Giannantonio, T / Goldstein, D A / Gruendl, R A / Gutierrez, G / Hollowood, D L / Honscheid, K / James, D J / Jarvis, M / Jeltema, T / Kent, S / Kuropatkin, N / Lahav, O / Li, T S / Lima, M / Maia, M A G / Marshall, J L / Melchior, P / Menanteau, F / Miquel, R / Ogando, R L C / Palmese, A / Plazas, A A / Romer, A K / Roodman, A / Rykoff, E S / Sánchez, C / Sanchez, E / Scarpine, V / Serrano, S / Sevilla-Noarbe, I / Smith, M / Soares-Santos, M / Sobreira, F / Suchyta, E / Swanson, M E C / Tarle, G / Thomas, D / Vikram, V / Zhang, Y

Physical review letters

2020 Volume 124, Issue 10, Page(s) 101102

Abstract: In recent years, many γ-ray sources have been identified, yet the unresolved component hosts valuable information on the faintest emission. In order to extract it, a cross-correlation with gravitational tracers of matter in the Universe has been shown to ...

Abstract	In recent years, many γ-ray sources have been identified, yet the unresolved component hosts valuable information on the faintest emission. In order to extract it, a cross-correlation with gravitational tracers of matter in the Universe has been shown to be a promising tool. We report here the first identification of a cross-correlation signal between γ rays and the distribution of mass in the Universe probed by weak gravitational lensing. We use data from the Dark Energy Survey Y1 weak lensing data and the Fermi Large Area Telescope 9-yr γ-ray data, obtaining a signal-to-noise ratio of 5.3. The signal is mostly localized at small angular scales and high γ-ray energies, with a hint of correlation at extended separation. Blazar emission is likely the origin of the small-scale effect. We investigate implications of the large-scale component in terms of astrophysical sources and particle dark matter emission.
Language	English
Publishing date	2020-03-26
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.124.101102
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Correlations.

To, C / Krause, E / Rozo, E / Wu, H / Gruen, D / Wechsler, R H / Eifler, T F / Rykoff, E S / Costanzi, M / Becker, M R / Bernstein, G M / Blazek, J / Bocquet, S / Bridle, S L / Cawthon, R / Choi, A / Crocce, M / Davis, C / DeRose, J /

Drlica-Wagner, A / Elvin-Poole, J / Fang, X / Farahi, A / Friedrich, O / Gatti, M / Gaztanaga, E / Giannantonio, T / Hartley, W G / Hoyle, B / Jarvis, M / MacCrann, N / McClintock, T / Miranda, V / Pereira, M E S / Park, Y / Porredon, A / Prat, J / Rau, M M / Ross, A J / Samuroff, S / Sánchez, C / Sevilla-Noarbe, I / Sheldon, E / Troxel, M A / Varga, T N / Vielzeuf, P / Zhang, Y / Zuntz, J / Abbott, T M C / Aguena, M / Amon, A / Annis, J / Avila, S / Bertin, E / Bhargava, S / Brooks, D / Burke, D L / Carnero Rosell, A / Carrasco Kind, M / Carretero, J / Chang, C / Conselice, C / da Costa, L N / Davis, T M / Desai, S / Diehl, H T / Dietrich, J P / Everett, S / Evrard, A E / Ferrero, I / Flaugher, B / Fosalba, P / Frieman, J / García-Bellido, J / Gruendl, R A / Gutierrez, G / Hinton, S R / Hollowood, D L / Honscheid, K / Huterer, D / James, D J / Jeltema, T / Kron, R / Kuehn, K / Kuropatkin, N / Lima, M / Maia, M A G / Marshall, J L / Menanteau, F / Miquel, R / Morgan, R / Muir, J / Myles, J / Palmese, A / Paz-Chinchón, F / Plazas, A A / Romer, A K / Roodman, A / Sanchez, E / Santiago, B / Scarpine, V / Serrano, S / Smith, M / Suchyta, E / Swanson, M E C / Tarle, G / Thomas, D / Tucker, D L / Weller, J / Wester, W / Wilkinson, R D

Physical review letters

2021 Volume 126, Issue 14, Page(s) 141301

Abstract: We present the first joint analysis of cluster abundances and auto or cross-correlations of three cosmic tracer fields: galaxy density, weak gravitational lensing shear, and cluster density split by optical richness. From a joint analysis (4×2pt+N) of ... ...

Abstract	We present the first joint analysis of cluster abundances and auto or cross-correlations of three cosmic tracer fields: galaxy density, weak gravitational lensing shear, and cluster density split by optical richness. From a joint analysis (4×2pt+N) of cluster abundances, three cluster cross-correlations, and the auto correlations of the galaxy density measured from the first year data of the Dark Energy Survey, we obtain Ω_{m}=0.305_{-0.038}^{+0.055} and σ_{8}=0.783_{-0.054}^{+0.064}. This result is consistent with constraints from the DES-Y1 galaxy clustering and weak lensing two-point correlation functions for the flat νΛCDM model. Consequently, we combine cluster abundances and all two-point correlations from across all three cosmic tracer fields (6×2pt+N) and find improved constraints on cosmological parameters as well as on the cluster observable-mass scaling relation. This analysis is an important advance in both optical cluster cosmology and multiprobe analyses of upcoming wide imaging surveys.
Language	English
Publishing date	2021-04-23
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.126.141301
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: A machine learning approach to galaxy properties

Mucesh, S. / Hartley, W. G. / Palmese, A. / Lahav, O. / Whiteway, L. / Amon, A. / Bechtol, K. / Bernstein, G. M. / Rosell, A. Carnero / Kind, M. Carrasco / Choi, A. / Eckert, K. / Everett, S. / Gruen, D. / Gruendl, R. A. / Harrison, I. / Huff, E. M. / Kuropatkin, N. / Sevilla-Noarbe, I. /

Sheldon, E. / Yanny, B. / Aguena, M. / Allam, S. / Bacon, D. / Bertin, E. / Bhargava, S. / Brooks, D. / Carretero, J. / Castander, F. J. / Conselice, C. / Costanzi, M. / Crocce, M. / da Costa, L. N. / Pereira, M. E. S. / De Vicente, J. / Desai, S. / Diehl, H. T. / Drlica-Wagner, A. / Evrard, A. E. / Ferrero, I. / Flaugher, B. / Fosalba, P. / Frieman, J. / García-Bellido, J. / Gaztanaga, E. / Gerdes, D. W. / Gschwend, J. / Gutierrez, G. / Hinton, S. R. / Hollowood, D. L. / Honscheid, K. / James, D. J. / Kuehn, K. / Lima, M. / Lin, H. / Maia, M. A. G. / Melchior, P. / Menanteau, F. / Miquel, R. / Morgan, R. / Paz-Chinchón, F. / Plazas, A. A. / Sanchez, E. / Scarpine, V. / Schubnell, M. / Serrano, S. / Smith, M. / Suchyta, E. / Tarle, G. / Thomas, D. / To, C. / Varga, T. N. / Wilkinson, R. D.

Joint redshift - stellar mass probability distributions with Random Forest

2020

Abstract: We demonstrate that highly accurate joint redshift - stellar mass PDFs can be obtained using the Random Forest (RF) machine learning (ML) algorithm, even with few photometric bands available. As an example, we use the Dark Energy Survey (DES), combined ... ...

Abstract	We demonstrate that highly accurate joint redshift - stellar mass PDFs can be obtained using the Random Forest (RF) machine learning (ML) algorithm, even with few photometric bands available. As an example, we use the Dark Energy Survey (DES), combined with the COSMOS2015 catalogue for redshifts and stellar masses. We build two ML models: one containing deep photometry in the $griz$ bands, and the second reflecting the photometric scatter present in the main DES survey, with carefully constructed representative training data in each case. We validate our joint PDFs for $10,699$ test galaxies by utilising the copula probability integral transform (copPIT) and the Kendall distribution function, and their univariate counterparts to validate the marginals. Benchmarked against a basic set-up of the template-fitting code BAGPIPES, our ML-based method outperforms template fitting on all of our pre-defined performance metrics. In addition to accuracy, the RF is extremely fast, able to compute joint PDFs for a million galaxies in just over $2$ hours with consumer computer hardware. Such speed enables PDFs to be derived in real-time within analysis codes, solving potential storage issues. As part of this work we have developed GALPRO, a highly intuitive and efficient Python package to rapidly generate multivariate PDFs on-the-fly. GALPRO is documented and available for researchers to use in their cosmology and galaxy evolution studies at https://galpro.readthedocs.io/. Comment: 18 pages, 8 figures, Submitted to MNRAS
Keywords	Astrophysics - Astrophysics of Galaxies ; Astrophysics - Cosmology and Nongalactic Astrophysics ; Astrophysics - Instrumentation and Methods for Astrophysics ; Computer Science - Machine Learning
Subject code	520
Publishing date	2020-12-10
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Evidence for Color Dichotomy in the Primordial Neptunian Trojan Population

Lin, Hsing Wen / Gerdes, David W. / Hamilton, Stephanie J. / Adams, Fred C. / Bernstein, Gary M. / Sako, Masao / Bernadinelli, Pedro / Tucker, Douglas / Allam, Sahar / Becker, Juliette C. / Khain, Tali / Markwardt, Larissa / Franson, Kyle / Abbott, T. M. C. / Annis, J. / Avila, S. / Brooks, D. / Rosell, A. Carnero / Kind, M. Carrasco /

Cunha, C. E. / D'Andrea, C. B. / da Costa, L. N. / De Vicente, J. / Doel, P. / Eifler, T. F. / Flaugher, B. / Garcia-Bellido, J. / Hollowood, D. L. / Honscheid, Klaus / James, D. J. / Kuehn, K. / Kuropatkin, N. / Maia, M. A. G. / Marshall, J. L. / Miquel, R. / Plazas, A. A. / Romer, A. K. / Sanchez, E. / Scarpine, V. / Sevilla-Noarbe, I. / Smith, M. / Smith, R. C. / Soares-Santos, M. / Sobreira, F. / Suchyta, E. / Tarle, G. / Walker, A. R. / Wester, W.

2018

Abstract: In the current model of early Solar System evolution, the stable members of the Jovian and Neptunian Trojan populations were captured into resonance from the leftover reservoir of planetesimals during the outward migration of the giant planets. As a ... ...

Abstract	In the current model of early Solar System evolution, the stable members of the Jovian and Neptunian Trojan populations were captured into resonance from the leftover reservoir of planetesimals during the outward migration of the giant planets. As a result, both Jovian and Neptunian Trojans share a common origin with the primordial disk population, whose other surviving members constitute today's trans-Neptunian object (TNO) populations. The cold classical TNOs are ultra-red, while the dynamically excited "hot" population of TNOs contains a mixture of ultra-red and blue objects. In contrast, Jovian and Neptunian Trojans are observed to be blue. While the absence of ultra-red Jovian Trojans can be readily explained by the sublimation of volatile material from their surfaces due to the high flux of solar radiation at 5AU, the lack of ultra-red Neptunian Trojans presents both a puzzle and a challenge to formation models. In this work we report the discovery by the Dark Energy Survey (DES) of two new dynamically stable L4 Neptunian Trojans,2013 VX30 and 2014 UU240, both with inclinations i >30 degrees, making them the highest-inclination known stable Neptunian Trojans. We have measured the colors of these and three other dynamically stable Neptunian Trojans previously observed by DES, and find that 2013 VX30 is ultra-red, the first such Neptunian Trojan in its class. As such, 2013 VX30 may be a "missing link" between the Trojan and TNO populations. Using a simulation of the DES TNO detection efficiency, we find that there are 162 +/- 73 Trojans with Hr < 10 at the L4 Lagrange point of Neptune. Moreover, the blue-to-red Neptunian Trojan population ratio should be higher than 17:1. Based on this result, we discuss the possible origin of the ultra-red Neptunian Trojan population and its implications for the formation history of Neptunian Trojans.
Keywords	Astrophysics - Earth and Planetary Astrophysics
Subject code	612
Publishing date	2018-06-25
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: DES Y1 results

Muir, J. / Baxter, E. / Miranda, V. / Doux, C. / Ferté, A. / Leonard, C. D. / Huterer, D. / Jain, B. / Lemos, P. / Raveri, M. / Nadathur, S. / Campos, A. / Chen, A. / Dodelson, S. / Elvin-Poole, J. / Lee, S. / Secco, L. F. / Troxel, M. A. / Weaverdyck, N. /

Zuntz, J. / Brout, D. / Choi, A. / Crocce, M. / Davis, T. M. / Gruen, D. / Krause, E. / Lidman, C. / MacCrann, N. / Möller, A. / Prat, J. / Ross, A. J. / Sako, M. / Samuroff, S. / Sáchez, C. / Scolnic, D. / Zhang, B. / Abbott, T. M. C. / Aguena, M. / Allam, S. / Annis, J. / Avila, S. / Bacon, D. / Bertin, E. / Bhargava, S. / Bridle, S. L. / Brooks, D. / Burke, D. L. / Rosell, A. Carnero / Kind, M. Carrasco / Carretero, J. / Cawthon, R. / Costanzi, M. / da Costa, L. N. / Pereira, M. E. S. / Desai, S. / Diehl, H. T. / Dietrich, J. P. / Doel, P. / Estrada, J. / Everett, S. / Evrard, A. E. / Ferrero, I. / Flaugher, B. / Frieman, J. / García-Bellido, J. / Giannantonio, T. / Gruendl, R. A. / Gschwend, J. / Gutierrez, G. / Hinton, S. R. / Hollowood, D. L. / Honscheid, K. / Hoyle, B. / James, D. J. / Jeltema, T. / Kuehn, K. / Kuropatkin, N. / Lahav, O. / Lima, M. / Maia, M. A. G. / Menanteau, F. / Miquel, R. / Morgan, R. / Myles, J. / Palmese, A. / Paz-Chinchón, F. / Plazas, A. A. / Romer, A. K. / Roodman, A. / Sanchez, E. / Scarpine, V. / Serrano, S. / Sevilla-Noarbe, I. / Smith, M. / Suchyta, E. / Swanson, M. E. C. / Tarle, G. / Thomas, D. / To, C. / Tucker, D. L. / Varga, T. N. / Weller, J. / Wilkinson, R. D.

Splitting growth and geometry to test $\Lambda$CDM

2020

Abstract: We analyze Dark Energy Survey (DES) data to constrain a cosmological model where a subset of parameters -- focusing on $\Omega_m$ -- are split into versions associated with structure growth (e.g. $\Omega_m^{\rm grow}$) and expansion history (e.g. $\ ... ...

Abstract	We analyze Dark Energy Survey (DES) data to constrain a cosmological model where a subset of parameters -- focusing on $\Omega_m$ -- are split into versions associated with structure growth (e.g. $\Omega_m^{\rm grow}$) and expansion history (e.g. $\Omega_m^{\rm geo}$). Once the parameters have been specified for the $\Lambda$CDM cosmological model, which includes general relativity as a theory of gravity, it uniquely predicts the evolution of both geometry (distances) and the growth of structure over cosmic time. Any inconsistency between measurements of geometry and growth could therefore indicate a breakdown of that model. Our growth-geometry split approach therefore serves as both a (largely) model-independent test for beyond-$\Lambda$CDM physics, and as a means to characterize how DES observables provide cosmological information. We analyze the same multi-probe DES data as arXiv:1811.02375 : DES Year 1 (Y1) galaxy clustering and weak lensing, which are sensitive to both growth and geometry, as well as Y1 BAO and Y3 supernovae, which probe geometry. We additionally include external geometric information from BOSS DR12 BAO and a compressed Planck 2015 likelihood, and external growth information from BOSS DR12 RSD. We find no significant disagreement with $\Omega_m^{\rm grow}=\Omega_m^{\rm geo}$. When DES and external data are analyzed separately, degeneracies with neutrino mass and intrinsic alignments limit our ability to measure $\Omega_m^{\rm grow}$, but combining DES with external data allows us to constrain both growth and geometric quantities. We also consider a parameterization where we split both $\Omega_m$ and $w$, but find that even our most constraining data combination is unable to separately constrain $\Omega_m^{\rm grow}$ and $w^{\rm grow}$. Relative to $\Lambda$CDM, splitting growth and geometry weakens bounds on $\sigma_8$ but does not alter constraints on $h$. Comment: 35 pages, 18 figures. Updated to match published version
Keywords	Astrophysics - Cosmology and Nongalactic Astrophysics
Subject code	612
Publishing date	2020-10-12
Publishing country	us
Document type	Book ; Online
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Article ; Online: Detection of CMB-Cluster Lensing using Polarization Data from SPTpol.

Raghunathan, S / Patil, S / Baxter, E / Benson, B A / Bleem, L E / Crawford, T M / Holder, G P / McClintock, T / Reichardt, C L / Varga, T N / Whitehorn, N / Ade, P A R / Allam, S / Anderson, A J / Austermann, J E / Avila, S / Avva, J S / Bacon, D / Beall, J A /

Bender, A N / Bianchini, F / Bocquet, S / Brooks, D / Burke, D L / Carlstrom, J E / Carretero, J / Castander, F J / Chang, C L / Chiang, H C / Citron, R / Costanzi, M / Crites, A T / da Costa, L N / Desai, S / Diehl, H T / Dietrich, J P / Dobbs, M A / Doel, P / Everett, S / Evrard, A E / Feng, C / Flaugher, B / Fosalba, P / Frieman, J / Gallicchio, J / García-Bellido, J / Gaztanaga, E / George, E M / Giannantonio, T / Gilbert, A / Gruendl, R A / Gschwend, J / Gupta, N / Gutierrez, G / de Haan, T / Halverson, N W / Harrington, N / Henning, J W / Hilton, G C / Hollowood, D L / Holzapfel, W L / Honscheid, K / Hrubes, J D / Huang, N / Hubmayr, J / Irwin, K D / Jeltema, T / Kind, M Carrasco / Knox, L / Kuropatkin, N / Lahav, O / Lee, A T / Li, D / Lima, M / Lowitz, A / Maia, M A G / Marshall, J L / McMahon, J J / Melchior, P / Menanteau, F / Meyer, S S / Miquel, R / Mocanu, L M / Mohr, J J / Montgomery, J / Moran, C Corbett / Nadolski, A / Natoli, T / Nibarger, J P / Noble, G / Novosad, V / Ogando, R L C / Padin, S / Plazas, A A / Pryke, C / Rapetti, D / Romer, A K / Roodman, A / Rosell, A Carnero / Rozo, E / Ruhl, J E / Rykoff, E S / Saliwanchik, B R / Sanchez, E / Sayre, J T / Scarpine, V / Schaffer, K K / Schubnell, M / Serrano, S / Sevilla-Noarbe, I / Sievers, C / Smecher, G / Smith, M / Soares-Santos, M / Stark, A A / Story, K T / Suchyta, E / Swanson, M E C / Tarle, G / Tucker, C / Vanderlinde, K / Veach, T / De Vicente, J / Vieira, J D / Vikram, V / Wang, G / Wu, W L K / Yefremenko, V / Zhang, Y

Physical review letters

2019 Volume 123, Issue 18, Page(s) 181301

Abstract: We report the first detection of gravitational lensing due to galaxy clusters using only the polarization of the cosmic microwave background (CMB). The lensing signal is obtained using a new estimator that extracts the lensing dipole signature from ... ...

Abstract	We report the first detection of gravitational lensing due to galaxy clusters using only the polarization of the cosmic microwave background (CMB). The lensing signal is obtained using a new estimator that extracts the lensing dipole signature from stacked images formed by rotating the cluster-centered Stokes QU map cutouts along the direction of the locally measured background CMB polarization gradient. Using data from the SPTpol 500 deg^{2} survey at the locations of roughly 18 000 clusters with richness λ≥10 from the Dark Energy Survey (DES) Year-3 full galaxy cluster catalog, we detect lensing at 4.8σ. The mean stacked mass of the selected sample is found to be (1.43±0.40)×10^{14}M_{⊙} which is in good agreement with optical weak lensing based estimates using DES data and CMB-lensing based estimates using SPTpol temperature data. This measurement is a key first step for cluster cosmology with future low-noise CMB surveys, like CMB-S4, for which CMB polarization will be the primary channel for cluster lensing measurements.
Language	English
Publishing date	2019-11-25
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.123.181301
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Article ; Online: Wide-Field Lensing Mass Maps from Dark Energy Survey Science Verification Data.

Chang, C / Vikram, V / Jain, B / Bacon, D / Amara, A / Becker, M R / Bernstein, G / Bonnett, C / Bridle, S / Brout, D / Busha, M / Frieman, J / Gaztanaga, E / Hartley, W / Jarvis, M / Kacprzak, T / Kovács, A / Lahav, O / Lin, H /

Melchior, P / Peiris, H / Rozo, E / Rykoff, E / Sánchez, C / Sheldon, E / Troxel, M A / Wechsler, R / Zuntz, J / Abbott, T / Abdalla, F B / Allam, S / Annis, J / Bauer, A H / Benoit-Lévy, A / Brooks, D / Buckley-Geer, E / Burke, D L / Capozzi, D / Carnero Rosell, A / Carrasco Kind, M / Castander, F J / Crocce, M / D'Andrea, C B / Desai, S / Diehl, H T / Dietrich, J P / Doel, P / Eifler, T F / Evrard, A E / Fausti Neto, A / Flaugher, B / Fosalba, P / Gruen, D / Gruendl, R A / Gutierrez, G / Honscheid, K / James, D / Kent, S / Kuehn, K / Kuropatkin, N / Maia, M A G / March, M / Martini, P / Merritt, K W / Miller, C J / Miquel, R / Neilsen, E / Nichol, R C / Ogando, R / Plazas, A A / Romer, A K / Roodman, A / Sako, M / Sanchez, E / Sevilla, I / Smith, R C / Soares-Santos, M / Sobreira, F / Suchyta, E / Tarle, G / Thaler, J / Thomas, D / Tucker, D / Walker, A R

Physical review letters

2015 Volume 115, Issue 5, Page(s) 51301

Abstract: We present a mass map reconstructed from weak gravitational lensing shear measurements over 139 deg2 from the Dark Energy Survey science verification data. The mass map probes both luminous and dark matter, thus providing a tool for studying cosmology. ... ...

Abstract	We present a mass map reconstructed from weak gravitational lensing shear measurements over 139 deg2 from the Dark Energy Survey science verification data. The mass map probes both luminous and dark matter, thus providing a tool for studying cosmology. We find good agreement between the mass map and the distribution of massive galaxy clusters identified using a red-sequence cluster finder. Potential candidates for superclusters and voids are identified using these maps. We measure the cross-correlation between the mass map and a magnitude-limited foreground galaxy sample and find a detection at the 6.8σ level with 20 arc min smoothing. These measurements are consistent with simulated galaxy catalogs based on N-body simulations from a cold dark matter model with a cosmological constant. This suggests low systematics uncertainties in the map. We summarize our key findings in this Letter; the detailed methodology and tests for systematics are presented in a companion paper.
Language	English
Publishing date	2015-07-31
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.115.051301
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Cosmological Constraints from Multiple Probes in the Dark Energy Survey.

Abbott, T M C / Alarcon, A / Allam, S / Andersen, P / Andrade-Oliveira, F / Annis, J / Asorey, J / Avila, S / Bacon, D / Banik, N / Bassett, B A / Baxter, E / Bechtol, K / Becker, M R / Bernstein, G M / Bertin, E / Blazek, J / Bridle, S L / Brooks, D /

Brout, D / Burke, D L / Calcino, J / Camacho, H / Campos, A / Carnero Rosell, A / Carollo, D / Carrasco Kind, M / Carretero, J / Castander, F J / Cawthon, R / Challis, P / Chan, K C / Chang, C / Childress, M / Crocce, M / Cunha, C E / D'Andrea, C B / da Costa, L N / Davis, C / Davis, T M / De Vicente, J / DePoy, D L / DeRose, J / Desai, S / Diehl, H T / Dietrich, J P / Dodelson, S / Doel, P / Drlica-Wagner, A / Eifler, T F / Elvin-Poole, J / Estrada, J / Evrard, A E / Fernandez, E / Flaugher, B / Foley, R J / Fosalba, P / Frieman, J / Galbany, L / García-Bellido, J / Gatti, M / Gaztanaga, E / Gerdes, D W / Giannantonio, T / Glazebrook, K / Goldstein, D A / Gruen, D / Gruendl, R A / Gschwend, J / Gutierrez, G / Hartley, W G / Hinton, S R / Hollowood, D L / Honscheid, K / Hoormann, J K / Hoyle, B / Huterer, D / Jain, B / James, D J / Jarvis, M / Jeltema, T / Kasai, E / Kent, S / Kessler, R / Kim, A G / Kokron, N / Krause, E / Kron, R / Kuehn, K / Kuropatkin, N / Lahav, O / Lasker, J / Lemos, P / Lewis, G F / Li, T S / Lidman, C / Lima, M / Lin, H / Macaulay, E / MacCrann, N / Maia, M A G / March, M / Marriner, J / Marshall, J L / Martini, P / McMahon, R G / Melchior, P / Menanteau, F / Miquel, R / Mohr, J J / Morganson, E / Muir, J / Möller, A / Neilsen, E / Nichol, R C / Nord, B / Ogando, R L C / Palmese, A / Pan, Y-C / Peiris, H V / Percival, W J / Plazas, A A / Porredon, A / Prat, J / Romer, A K / Roodman, A / Rosenfeld, R / Ross, A J / Rykoff, E S / Samuroff, S / Sánchez, C / Sanchez, E / Scarpine, V / Schindler, R / Schubnell, M / Scolnic, D / Secco, L F / Serrano, S / Sevilla-Noarbe, I / Sharp, R / Sheldon, E / Smith, M / Soares-Santos, M / Sobreira, F / Sommer, N E / Swann, E / Swanson, M E C / Tarle, G / Thomas, D / Thomas, R C / Troxel, M A / Tucker, B E / Uddin, S A / Vielzeuf, P / Walker, A R / Wang, M / Weaverdyck, N / Wechsler, R H / Weller, J / Yanny, B / Zhang, B / Zhang, Y / Zuntz, J

Physical review letters

2019 Volume 122, Issue 17, Page(s) 171301

Abstract: 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 ... ...

Abstract	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, weak gravitational lensing, and galaxy clustering. Here we present combined results from these probes, deriving constraints on the equation of state, w, of dark energy and its energy density in the Universe. Independently of other experiments, such as those that measure the cosmic microwave background, the probes from this single photometric survey rule out a Universe with no dark energy, finding w=-0.80_{-0.11}^{+0.09}. The geometry is shown to be consistent with a spatially flat Universe, and we obtain a constraint on the baryon density of Ω_{b}=0.069_{-0.012}^{+0.009} that is independent of early Universe measurements. These results demonstrate the potential power of large multiprobe photometric surveys and pave the way for order of magnitude advances in our constraints on properties of dark energy and cosmology over the next decade.
Language	English
Publishing date	2019-05-20
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.122.171301
Database	MEDical Literature Analysis and Retrieval System OnLINE

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