Publications


Identifying the progenitors of present-day early-type galaxies in observational surveys: correcting 'progenitor bias' using the Horizon-AGN simulation

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 474 (2018) 3140-3151

G Martin, S Kaviraj, JEG Devriendt, Y Dubois, C Pichon, C Laigle


Photometric redshifts for the next generation of deep radio continuum surveys - II. Gaussian processes and hybrid estimates

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 477 (2018) 5177-5190

KJ Duncan, MJ Jarvis, MJI Brown, HJA Rottgering


Radial measurements of IMF-sensitive absorption features in two massive ETGs

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475 (2018) 1073-1092

SP Vaughan, RL Davies, S Zieleniewski, RCW Houghton


The new galaxy evolution paradigm revealed by the Herschel surveys

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 473 (2018) 3507-3524

S Eales, D Smith, N Bourne, J Loveday, K Rowlands, P van der Werf, S Driver, L Dunne, S Dye, C Furlanetto, RJ Ivison, S Maddox, A Robotham, MWL Smith, EN Taylor, E Valiante, A Wright, P Cigan, G De Zotti, MJ Jarvis, L Marchetti, MJ Michalowski, S Phillipps, S Viaene, C Vlahakis


Gas flows in the circumgalactic medium around simulated high-redshift galaxies

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 473 (2018) 4279-4301

PD Mitchell, J Blaizot, J Devriendt, T Kimm, L Michel-Dansac, J Rosdahl, A Slyz


Impact of relativistic effects on cosmological parameter estimation

PHYSICAL REVIEW D 97 (2018) ARTN 023537

CS Lorenz, D Alonso, PG Ferreira


Galaxy evolution in the metric of the cosmic web

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 474 (2018) 547-571

K Kraljic, S Arnouts, C Pichon, C Laigle, S de la Torre, D Vibert, C Cadiou, Y Dubois, M Treyer, C Schimd, S Codis, V de Lapparent, J Devriendt, HS Hwang, D Le Borgne, N Malavasi, B Milliard, M Musso, D Pogosyan, M Alpaslan, J Bland-Hawthorn, AH Wright


WAS: The archive for the WEAVE spectrograph

Proceedings of SPIE - The International Society for Optical Engineering 10015 (2018)

J Guerra, A Martin, E Molinari, M Lodi, GB Dalton, SC Trager, DC Abrams, P Bonifacio, JAL Aguerri, A Vallenari, EEC Licea, KF Middleton


RFI flagging implications for short-duration transients

ASTRONOMY AND COMPUTING 23 (2018) 103-114

Y Cendes, P Prasad, A Rowlinsona, RAMJ Wijers, JD Swinbank, CJ Law, AJ van der Horst, D Carbone, JW Broderick, TD Staley, AJ Stewart, F Huizinga, G Molenaar, A Alexov, ME Bell, T Coenen, S Corbel, J Eisloffel, R Fender, J-M Griessmeier, P Jonker, M Kramer, M Kuniyoshi, M Pietka, B Stappers, M Wise, P Zarka


The environment and host haloes of the brightest z~6 Lyman-break galaxies

MNRAS (0)

PW Hatfield, RAA Bowler, MJ Jarvis, CL Hale

By studying the large-scale structure of the bright high-redshift Lyman-break galaxy (LBG) population it is possible to gain an insight into the role of environment in galaxy formation physics in the early Universe. We measure the clustering of a sample of bright ($-22.7<M_{UV}<-21.125$) LBGs at $z\sim6$ and use a halo occupation distribution (HOD) model to measure their typical halo masses. We find that the clustering amplitude and corresponding HOD fits suggests that these sources are highly biased ($b\sim10$) objects in the densest regions of the high-redshift Universe. Coupled with the observed rapid evolution of the number density of these objects, our results suggest that the shape of high luminosity end of the luminosity function is related to feedback processes or the onset of dust obscuration - as opposed to a scenario where these sources are predominantly rare instances of the much more numerous $M_{UV} \sim -19$ population of galaxies caught in a particularly vigorous period of star formation. Despite investigating several variations on the model, we struggle to simultaneously fit both the number densities and clustering measurements. We interpret this as a signal that a refinement of the model halo bias relation at high redshifts or the incorporation of quasi-linear effects may be needed for future attempts at modelling the clustering and number counts. Finally, the difference in number density between the fields (UltraVISTA has a surface density$\sim 1.8$ times greater than UDS) is shown to be consistent with the cosmic variance implied by the clustering measurements.


The clustering and bias of radio-selected AGN and star-forming galaxies in the COSMOS field

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 474 (2018) 4133-4150

CL Hale, MJ Jarvis, I Delvecchio, PW Hatfield, M Novak, V Smolcic, G Zamorani


Improving photometric redshift estimation using GPz: size information, post processing, and improved photometry

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475 (2018) 331-342

Z Gomes, MJ Jarvis, IA Almosallam, SJ Roberts


LOFAR-Bootes: properties of high- and low-excitation radio galaxies at 0.5 < z < 2.0

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475 (2018) 3429-3452

WL Williams, GC Rivera, PN Best, MJ Hardcastle, HJA Rottgering, KJ Duncan, F de Gasperin, MJ Jarvis, GK Miley, EK Mahony, LK Morabito, DM Nisbet, I Prandoni, DJB Smith, C Tasse, GJ White


Exploring the Atmosphere of Neoproterozoic Earth: The Effect of O-2 on Haze Formation and Composition

ASTROPHYSICAL JOURNAL 858 (2018) ARTN 119

SM Horst, C He, MS Ugelow, AM Jellinek, RT Pierrehumbert, MA Tolbert


The Arcminute Microkelvin Imager catalogue of gamma-ray burst afterglows at 15.7 GHz

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 473 (2018) 1512-1536

GE Anderson, TD Staley, AJ van der Horst, RP Fender, A Rowlinson, KP Mooley, JW Broderick, RAMJ Wijers, C Rumsey, DJ Titterington


Comparison of Einstein-Boltzmann solvers for testing general relativity

PHYSICAL REVIEW D 97 (2018) ARTN 023520

E Bellini, A Barreira, N Frusciante, B Hu, S Peirone, M Raveri, M Zumalacarregui, A Avilez-Lopez, M Ballardini, RA Battye, B Bolliet, E Calabrese, Y Dirian, PG Ferreira, F Finelli, Z Huang, MM Ivanov, J Lesgourgues, B Li, NA Lima, F Pace, D Paoletti, I Sawicki, A Silvestri, C Skordis, C Umilta, F Vernizzi


A question of separation: disentangling tracer bias and gravitational non-linearity with counts-in-cells statistics

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 473 (2018) 5098-5112

C Uhlemann, M Feix, S Codis, C Pichon, F Bernardeau, B L'Huillier, J Kim, SE Hong, C Laigle, C Park, J Shin, D Pogosyan


Long-term radio and X-ray evolution of the tidal disruption event ASASSN-14li

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475 (2018) 4011-4019

JS Bright, RP Fender, SE Motta, K Mooley, YC Perrott, S van Velzen, S Carey, J Hickish, N Razavi-Ghods, D Titterington, P Scott, K Grainge, A Scaife, T Cantwell, C Rumsey


Shape of LOSVDs in Barred Disks: Implications for Future IFU Surveys

ASTROPHYSICAL JOURNAL 854 (2018) ARTN 65

Z-Y Li, J Shen, M Bureau, Y Zhou, M Du, VP Debattista


The dipole anisotropy of AllWISE galaxies

Monthly Notices of the Royal Astronomical Society Blackwell Publishing Inc. 477 (2018) 1772-1781

M Rameez, R Mohayaee, S Sarkar, J Colin

We determine the dipole in the WISE galaxy catalogue. After reducing star contamination to <0.1% by rejecting sources with high apparent motion and those close to the Galactic plane, we eliminate low redshift sources to suppress the non-kinematic, clustering dipole. We remove sources within {\pm}5{\deg} of the super-galactic plane, as well as those within 1'' of 2MRS sources at redshift z < 0.03. We enforce cuts on the source angular extent to preferentially select distant ones. As we progress along these steps, the dipole converges in direction to within 5{\deg} of the CMB dipole and its magnitude also progressively reduces but stabilises at {\sim}0.012, corresponding to a velocity >1000 km/s if it is solely of kinematic origin. However, previous studies have shown that only {\sim}70% of the velocity of the Local Group as inferred from the CMB dipole is due to sources at z < 0.03. We examine the Dark Sky simulations to quantify the prevalence of such environments and find that <2.1% of Milky Way-like observers in a {\Lambda}CDM universe should observe the bulk flow (> 240 km/s extending to z > 0.03) that we do. We construct mock catalogues in the neighbourhood of such peculiar observers in order to mimic our final galaxy selection and quantify the residual clustering dipole. After subtracting this the remaining dipole is 0.0048 {\pm} 0.0022, corresponding to a velocity of 420 {\pm} 213 km/s which is consistent with the CMB. However the sources (at z > 0.03) of such a large clustering dipole remain to be identified.

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