Dark Energy Survey Year 1 results: curved-sky weak lensing mass map

Abstract We construct the largest curved-sky galaxy weak lensing mass map to date from the DES first-year (DES Y1) data. The map, about 10 times larger than the previous work, is constructed over a contiguous ≈1500 deg2, covering a comoving volume of ≈10 Gpc3. The effects of masking, sampling, and n...

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Veröffentlicht in:	Mon.Not.Roy.Astron.Soc 2018-04, Vol.475 (3), p.3165-3190
Hauptverfasser:	Chang, C, Pujol, A, Mawdsley, B, Bacon, D, Elvin-Poole, J, Jain, B, Leistedt, B, Giannantonio, T, Alarcon, A, Baxter, E, Bechtol, K, Becker, M R, Bernstein, G M, Bonnett, C, Busha, M T, Castander, F J, Cawthon, R, da Costa, L N, Davis, C, DeRose, J, Drlica-Wagner, A, Fosalba, P, Gatti, M, Gaztanaga, E, Gschwend, J, Hartley, W G, Hoyle, B, Huff, E M, Jarvis, M, Kacprzak, T, Lin, H, MacCrann, N, Maia, M A G, Ogando, R L C, Prat, J, Rau, M M, Rollins, R P, Rozo, E, Rykoff, E S, Sánchez, C, Sevilla-Noarbe, I, Sheldon, E, Troxel, M A, Varga, T N, Vielzeuf, P, Vikram, V, Abbott, T M C, Abdalla, F B, Allam, S, Annis, J, Bertin, E, Brooks, D, Buckley-Geer, E, Burke, D L, Kind, M Carrasco, Carretero, J, Crocce, M, Cunha, C E, D'Andrea, C B, Desai, S, Diehl, H T, Estrada, J, Fernandez, E, Flaugher, B, García-Bellido, J, Gruendl, R A, Gutierrez, G, Honscheid, K, James, D J, Jeltema, T, Johnson, M W G, Johnson, M D, Kent, S, Krause, E, Kuehn, K, Kuhlmann, S, Lahav, O, Li, T S, Lima, M, March, M, Martini, P, Menanteau, F, Miquel, R, Mohr, J J, Nichol, R C, Petravick, D, Plazas, A A, Romer, A K, Sanchez, E, Scarpine, V, Schubnell, M, Smith, M, Smith, R C, Soares-Santos, M, Sobreira, F, Suchyta, E, Tarle, G, Thomas, D, Tucker, D L, Walker, A R
Format:	Artikel
Sprache:	eng
Schlagworte:	ASTRONOMY AND ASTROPHYSICS Astrophysics Contaminants Dark energy dark matter Galaxies gravitational lensing: weak Masking Noise Physics Red shift Signal to noise ratio Sky surveys (astronomy) surveys Tracers
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Zusammenfassung:	Abstract We construct the largest curved-sky galaxy weak lensing mass map to date from the DES first-year (DES Y1) data. The map, about 10 times larger than the previous work, is constructed over a contiguous ≈1500 deg2, covering a comoving volume of ≈10 Gpc3. The effects of masking, sampling, and noise are tested using simulations. We generate weak lensing maps from two DES Y1 shear catalogues, MetaCalibration and Im3shape, with sources at redshift 0.2
ISSN:	0035-8711 1365-2966
DOI:	10.1093/mnras/stx3363