Beecroft Institute for Particle Astrophysics and Cosmology

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The Python Sky Model: software for simulating the Galactic microwave sky

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 469:3 (2017) 2821-2833

Authors:

B Thorne, J Dunkley, D Alonso, S Næss
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Galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation

Monthly Notices of the Royal Astronomical Society (2017)

Authors:

NE Chisari, N Koukoufilippas, A Jindal, S Peirani, RS Beckmann, S Codis, J Devriendt, L Miller, Y Dubois, C Laigle, A Slyz, C Pichon

Abstract:

Intrinsic alignments of galaxies are a significant astrophysical systematic affecting cosmological constraints from weak gravitational lensing. Obtaining numerical predictions from hydrodynamical simulations of expected survey volumes is expensive, and a cheaper alternative relies on populating large dark matter-only simulations with accurate models of alignments calibrated on smaller hydrodynamical runs. This requires connecting the shapes and orientations of galaxies to those of dark matter haloes and to the large-scale structure. In this paper, we characterise galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation. We compare the shapes and orientations of galaxies in the redshift range $0
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Large sSynoptic Survey Telescope Galaxies Science Roadmap

(2017)

Authors:

BE Robertson, M Banerji, MC Cooper, Roger Davies, SP Driver, Ferguson, HC Ferguson, E Gawiser, S Kaviraj, JH Knapen, Chris Lintott, J Lotz, JA Newman, DJ Norman, N Padilla, SJ Schmidt, GP Smith, JA Tyson, Aprajita Verma, I Zehavi, L Armus, C Avestruz, LF Barrientos, Rebecca AA Bowler, MN Bremer, CJ Conselice, J Davies, R Demarco, ME Dickinson, G Galaz, A Grazian, BW Holwerda, Matthew Jarvis, V Kasliwal, I Lacerna, J Loveday, P Marshall, E Merlin, NR Napolitano, TH Puzia, A Robotham, S Salim, M Sereno, GF Snyder, JP Stott, PB Tissera, N Werner, P Yoachim, KD Borne

Abstract:

The Large Synoptic Survey Telescope (LSST) will enable revolutionary studies of galaxies, dark matter, and black holes over cosmic time. The LSST Galaxies Science Collaboration has identified a host of preparatory research tasks required to leverage fully the LSST dataset for extragalactic science beyond the study of dark energy. This Galaxies Science Roadmap provides a brief introduction to critical extragalactic science to be conducted ahead of LSST operations, and a detailed list of preparatory science tasks including the motivation, activities, and deliverables associated with each. The Galaxies Science Roadmap will serve as a guiding document for researchers interested in conducting extragalactic science in anticipation of the forthcoming LSST era.
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On the time lags of the LIGO signals

Journal of Cosmology and Astroparticle Physics IOP Publishing 2017:08 (2017) 013-013

Authors:

James Creswell, Sebastian von Hausegger, Andrew D Jackson, Hao Liu, Pavel Naselsky
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Distinguishing between neutrinos and time-varying dark energy through cosmic time

Physical Review D 96:4 (2017)

Authors:

CS Lorenz, E Calabrese, D Alonso
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