Publications


The halo mass function in the cosmic web

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2017) ARTN 012

F von Braun-Bates, HA Winther, D Alonso, J Devriendt


Observational future of cosmological scalar-tensor theories

PHYSICAL REVIEW D 95 (2017) ARTN 063502

D Alonso, E Bellini, PG Ferreira, M Zumalacarregui


Multimessenger time delays from lensed gravitational waves

Physical Review D 95 (2017)

T Baker, M Trodden


Cosmic evolution of stellar quenching by AGN feedback: clues from the Horizon-AGN simulation

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 472 (2017) 949-965

RS Beckmann, J Devriendt, A Slyz, S Peirani, MLA Richardson, Y Dubois, C Pichon, NE Chisari, S Kaviraj, C Laigle, M Volonteri


Density profile of dark matter haloes and galaxies in the horizon-agn simulation: the impact of AGN feedback

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 472 (2017) 2153-2169

S Peirani, Y Dubois, M Volonteri, J Devriendt, K Bundy, J Silk, C Pichon, S Kaviraj, R Gavazzi, M Habouzit


Implications of strong intergalactic magnetic fields for ultrahigh-energy cosmic-ray astronomy

PHYSICAL REVIEW D 96 (2017) ARTN 023010

RA Batista, M-S Shin, J Devriendt, D Semikoz, G Sigl


Modelling blazar flaring using a time-dependent fluid jet emission model - an explanation for orphan flares and radio lags

Monthly Notices of the Royal Astronomical Society (2017)

WJ Potter


Demonstration of a magnetic Prandtl number disc instability from first principles

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 472 (2017) 3021-3028

WJ Potter, SA Balbus


CODEX weak lensing: Concentration of galaxy clusters at Z ~ 0.5

Monthly Notices of the Royal Astronomical Society 468 (2017) 1092-1116

N Cibirka, ES Cypriano, F Brimioulle, D Gruen, T Erben, L van Waerbeke, L Miller, A Finoguenov, C Kirkpatrick, J Patrick Henry, E Rykoff, E Rozo, R Dupke, JP Kneib, H Shan, P Spinelli

© 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. We present a stacked weak-lensing analysis of 27 richness selected galaxy clusters at 0.40 ≤ z ≤ 0.62 in the COnstrain Dark Energy with X-ray galaxy clusters (CODEX) survey. The fields were observed in five bands with the Canada-France-Hawaii Telescope (CFHT). We measure the stacked surface mass density profile with a 14σ significance in the radial range 0.1 < R Mpc h -1 < 2.5. The profile is well described by the halo model, with the main halo term following a Navarro-Frenk-White profile (NFW) profile and including the off-centring effect. We select the background sample using a conservative colour-magnitude method to reduce the potential systematic errors and contamination by cluster member galaxies. We perform a Bayesian analysis for the stacked profile and constrain the best-fitting NFW parameters M 200c = 6.6 +1.0 -0.8 × 10 14 h -1 M⊙ and c 200c = 3.7 +0.7 -0.6 . The off-centring effect was modelled based on previous observational results found for redMaPPer Sloan Digital Sky Survey clusters. Our constraints on M 200c and c 200c allow us to investigate the consistency with numerical predictions and select a concentration-mass relation to describe the high richness CODEX sample. Comparing our best-fitting values forM 200c and C 200c with other observational surveys at different redshifts, we find no evidence for evolution in the concentration-mass relation, though it could be mitigated by particular selection functions. Similar to previous studies investigating the X-ray luminosity-mass relation, our data suggest a lower evolution than expected from self-similarity.


An accretion disc instability induced by a temperature sensitive alpha parameter (vol 441, pg 681, 2014)

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 464 (2017) 4544-4544

WJ Potter, SA Balbus


Next Generation Virgo Cluster Survey. XXI. the Weak Lensing Masses of the CFHTLS and NGVS RedGOLD Galaxy Clusters and Calibration of the Optical Richness

Astrophysical Journal 848 (2017)

C Parroni, S Mei, T Erben, LV Waerbeke, A Raichoor, J Ford, R Licitra, M Meneghetti, H Hildebrandt, L Miller, P Côté, G Covone, JC Cuillandre, PA Duc, L Ferrarese, SDJ Gwyn, TH Puzia

© 2017. The American Astronomical Society. All rights reserved. We measured stacked weak lensing cluster masses for a sample of 1323 galaxy clusters detected by the RedGOLD algorithm in the Canada-France-Hawaii Telescope Legacy Survey W1 and the Next Generation Virgo Cluster Survey at 0.2 < z < 0.5, in the optical richness range 10 < λ < 70. This is the most comprehensive lensing study of a ∼100% complete and ∼80% pure optical cluster catalog in this redshift range. We test different mass models, and our final model includes a basic halo model with a Navarro Frenk and White profile, as well as correction terms that take into account cluster miscentering, non-weak shear, the two-halo term, the contribution of the Brightest Cluster Galaxy, and an a posteriori correction for the intrinsic scatter in the mass-richness relation. With this model, we obtain a mass-richness relation of logM 200 M o = (14.46 ± 0.02) + (1.04 ± 0.09)log(λ 40) (statistical uncertainties). This result is consistent with other published lensing mass-richness relations. We give the coefficients of the scaling relations between the lensing mass and X-ray mass proxies, L X and T X , and compare them with previous results. When compared to X-ray masses and mass proxies, our results are in agreement with most previous results and simulations, and consistent with the expected deviations from self-similarity.


Galaxy Zoo: morphological classifications for 120 000 galaxies in HST legacy imaging

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 464 (2017) 4176-4203

KW Willett, MA Galloway, SP Bamford, CJ Lintott, KL Masters, C Scarlata, BD Simmons, M Beck, CN Cardamone, E Cheung, EM Edmondson, LF Fortson, RL Griffith, B Haussler, A Han, R Hart, T Melvin, M Parrish, K Schawinski, RJ Smethurst, AM Smith


Galaxy Zoo: quantitative visual morphological classifications for 48 000 galaxies from CANDELS

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 464 (2017) 4420-4447

BD Simmons, C Lintott, KW Willett, KL Masters, JS Kartaltepe, B Haussler, S Kaviraj, C Krawczyk, SJ Kruk, DH McIntosh, RJ Smethurst, RC Nichol, C Scarlata, K Schawinski, CJ Conselice, O Almaini, HC Ferguson, L Fortson, W Hartley, D Kocevski, AM Koekemoer, A Mortlock, JA Newman, SP Bamford, NA Grogin, RA Lucas, NP Hathi, E McGrath, M Peth, J Pforr, Z Rizer, S Wuyts, G Barro, EF Bell, M Castellano, T Dahlen, A Dekel, J Ownsworth, SM Faber, SL Finkelstein, A Fontana, A Galametz, R Grutzbauch, D Koo, J Lotz, B Mobasher, M Mozena, M Salvato, T Wiklind


nIFTy cosmology: the clustering consistency of galaxy formation models

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 469 (2017) 749-762

A Pujol, RA Skibba, E Gaztanaga, A Benson, J Blaizot, R Bower, J Carretero, FJ Castander, A Cattaneo, SA Cora, DJ Croton, W Cui, D Cunnama, G De Lucia, JE Devriendt, PJ Elahi, A Font, F Fontanot, J Garcia-Bellido, ID Gargiulo, V Gonzalez-Perez, J Helly, BMB Henriques, M Hirschmann, A Knebe, J Lee, GA Mamon, P Monaco, J Onions, ND Padilla, FR Pearce, C Power, RS Somerville, C Srisawat, PA Thomas, E Tollet, CA Vega-Martinez, SK Yi


Early cosmology constrained

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2017) ARTN 023

L Verde, E Bellini, C Pigozzo, AF Heavens, R Jimenez


KiDS-450: the tomographic weak lensing power spectrum and constraints on cosmological parameters

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 471 (2017) 4412-4435

F Kohlinger, M Viola, B Joachimi, H Hoekstra, E van Uitert, H Hildebrandt, A Choi, T Erben, C Heymans, S Joudaki, D Klaes, K Kuijken, J Merten, L Miller, P Schneider, EA Valentijn


The rise and fall of stellar across the peak of cosmic star formation history: effects of mergers versus diffuse stellar mass acquisition

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 465 (2017) 1241-1258

C Welker, Y Dubois, J Devriendt, C Pichon, S Kaviraj, S Peirani


KiDS-450: tomographic cross-correlation of galaxy shear with Planck lensing

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 471 (2017) 1619-1633

J Harnois-Deraps, T Troster, NE Chisari, C Heymans, L van Waerbeke, M Asgari, M Bilicki, A Choi, T Erben, H Hildebrandt, H Hoekstra, S Joudaki, K Kuijken, J Merten, L Miller, N Robertson, P Schneider, M Viola


The third data release of the Kilo-Degree Survey and associated data products

ASTRONOMY & ASTROPHYSICS 604 (2017) ARTN A134

JTA de Jong, GAV Kleijn, T Erben, H Hildebrandt, K Kuijken, G Sikkema, M Brescia, M Bilicki, NR Napolitano, V Amaro, KG Begeman, DR Boxhoorn, H Buddelmeijer, S Cavuoti, F Getman, A Grado, E Helmich, Z Huang, N Irisarri, F La Barbera, G Longo, JP McFarland, R Nakajima, M Paolillo, E Puddu, M Radovich, A Rifatto, C Tortora, EA Valentijn, C Vellucci, W-J Vriend, A Amon, C Blake, A Choi, IF Conti, SDJ Gwyn, R Herbonnet, C Heymans, H Hoekstra, D Klaes, J Merten, L Miller, P Schneider, M Viola


Galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 472 (2017) 1163-1181

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

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