All Outputs (34)

The time delay between star formation quenching and morphological transformation of galaxies in clusters: a phase–space view of EDisCS (2019)
Journal Article
Kelkar, K., Gray, M. E., Aragón-Salamanca, A., Rudnick, G., Jaffé, Y. L., Jablonka, P., …Milvang-Jensen, B. (2019). The time delay between star formation quenching and morphological transformation of galaxies in clusters: a phase–space view of EDisCS. Monthly Notices of the Royal Astronomical Society, 486(1), 868-884. https://doi.org/10.1093/mnras/stz905

We explore the possible effect of cluster environments on the structure and star formation histories of galaxies by analysing the projected phase–space (PPS) of intermediate-redshift clusters (0.4 z 0.8). HST I−band imaging data from the ESO Distant... Read More about The time delay between star formation quenching and morphological transformation of galaxies in clusters: a phase–space view of EDisCS.

TheThreeHundred Project: ram pressure and gas content of haloes and subhaloes in the phase-space plane (2019)
Journal Article
Arthur, J., Pearce, F. R., Gray, M. E., Knebe, A., Cui, W., Elahi, P. J., …Stevens, A. R. H. (2019). TheThreeHundred Project: ram pressure and gas content of haloes and subhaloes in the phase-space plane. Monthly Notices of the Royal Astronomical Society, 484(3), 3968-3983. https://doi.org/10.1093/mnras/stz212

We use THETHREEHUNDRED project, a suite of 324 resimulated massive galaxy clusters embedded in a broad range of environments, to investigate (i) how the gas content of the surrounding haloes correlates with the phase-space position at z z = 0 and (i... Read More about TheThreeHundred Project: ram pressure and gas content of haloes and subhaloes in the phase-space plane.

OMEGA – OSIRIS mapping of emission-line galaxies in A901/2 – V. The rich population of jellyfish galaxies in the multi-cluster system Abell 901/2 (2019)
Journal Article
Roman-Oliveira, F. V., Chies-Santos, A. L., Rodríguez Del Pino, B., Aragón-Salamanca, A., Gray, M. E., & Bamford, S. P. (2019). OMEGA – OSIRIS mapping of emission-line galaxies in A901/2 – V. The rich population of jellyfish galaxies in the multi-cluster system Abell 901/2. Monthly Notices of the Royal Astronomical Society, 484(1), 892–905. https://doi.org/10.1093/mnras/stz007

We present the results of a systematic search and characterisation of galaxies with morphological signatures of ram-pressure stripping, known as jellyfish galaxies, in the multi-cluster system A901/2, at z ∼ 0.165, as part of the OMEGA survey. By vis... Read More about OMEGA – OSIRIS mapping of emission-line galaxies in A901/2 – V. The rich population of jellyfish galaxies in the multi-cluster system Abell 901/2.

Galaxy Cluster Mass Reconstruction Project – IV. Understanding the effects of imperfect membership on cluster mass estimation (2018)
Journal Article
Wojtak, R., Old, L., Mamon, G., Pearce, F., de Carvalho, R., Sifón, C., …Tempel, E. (2018). Galaxy Cluster Mass Reconstruction Project – IV. Understanding the effects of imperfect membership on cluster mass estimation. Monthly Notices of the Royal Astronomical Society, 481(1), 324-340. https://doi.org/10.1093/mnras/sty2257

The primary difficulty in measuring dynamical masses of galaxy clusters from galaxy data lies in the separation between true cluster members from interloping galaxies along the line of sight. We study the impact of membership contamination and incomp... Read More about Galaxy Cluster Mass Reconstruction Project – IV. Understanding the effects of imperfect membership on cluster mass estimation.

Galaxy Cluster Mass Reconstruction Project: III. The impact of dynamical substructure on cluster mass estimates (2017)
Journal Article
Old, L., Wojtak, R., Pearce, F., Gray, M., Mamon, G., Sifón, C., …Saro, A. (2018). Galaxy Cluster Mass Reconstruction Project: III. The impact of dynamical substructure on cluster mass estimates. Monthly Notices of the Royal Astronomical Society, 475(1), https://doi.org/10.1093/mnras/stx3241

With the advent of wide-field cosmological surveys, we are approaching samples of hundreds of thousands of galaxy clusters. While such large numbers will help reduce statistical uncertainties, the control of systematics in cluster masses is crucial.... Read More about Galaxy Cluster Mass Reconstruction Project: III. The impact of dynamical substructure on cluster mass estimates.

OMEGA - OSIRIS mapping of emission-line galaxies in A901/2: III. - Galaxy properties across projected phase space in A901/2 (2017)
Journal Article
Weinzirl, T., Aragón-Salamanca, A., Gray, M. E., Bamford, S. P., Rodriguez Del Pino, B., Chies-Santos, A. L., …Cool, R. J. (2017). OMEGA - OSIRIS mapping of emission-line galaxies in A901/2: III. - Galaxy properties across projected phase space in A901/2. Monthly Notices of the Royal Astronomical Society, 471(1), 182-200. https://doi.org/10.1093/mnras/stx1525

We conduct a comprehensive projected phase-space analysis of the A901/2 multicluster system at z ∼ 0.165. Aggregating redshifts from spectroscopy, tunable-filter imaging and prism techniques, we assemble a sample of 856 cluster galaxies reaching 108.... Read More about OMEGA - OSIRIS mapping of emission-line galaxies in A901/2: III. - Galaxy properties across projected phase space in A901/2.

The effect of the environment on the structure, morphology and star-formation history of intermediate-redshift galaxies (2017)
Journal Article
Kelkar, K., Gray, M. E., Aragón-Salamanca, A., Rudnick, G., Milvang-Jensen, B., Jablonka, P., & Schrabback, T. (2017). The effect of the environment on the structure, morphology and star-formation history of intermediate-redshift galaxies. Monthly Notices of the Royal Astronomical Society, 469(4), 4551-4564. https://doi.org/10.1093/mnras/stx1155

With the aim of understanding the effect of the environment on the star formation history and morphological transformation of galaxies, we present a detailed analysis of the colour, morphology and internal structure of cluster and field galaxies at 0... Read More about The effect of the environment on the structure, morphology and star-formation history of intermediate-redshift galaxies.

OMEGA – OSIRIS Mapping of Emission-line Galaxies in A901/2: II. Environmental influence on integrated star formation properties and AGN activity (2017)
Journal Article
Rodríguez del Pino, B., Aragón-Salamanca, A., Chies-Santos, A. L., Weinzirl, T., Bamford, S. P., Gray, M. E., …Maltby, D. T. (2017). OMEGA – OSIRIS Mapping of Emission-line Galaxies in A901/2: II. Environmental influence on integrated star formation properties and AGN activity. Monthly Notices of the Royal Astronomical Society, 467(4), 4200-4217. https://doi.org/10.1093/mnras/stx228

We present a study of the star formation and AGN activity for galaxies in CP 15051 the Abell 901/2 multicluster system at z ∼ 0.167 as part of the OSIRIS Mapping of Emission-line Galaxies in A901/2 (OMEGA) survey. Using Tuneable Filter data obtained... Read More about OMEGA – OSIRIS Mapping of Emission-line Galaxies in A901/2: II. Environmental influence on integrated star formation properties and AGN activity.

nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region (2016)
Journal Article
Arthur, J., Pearce, F. R., Gray, M. E., Elahi, P. J., Knebe, A., Beck, A. M., …Yepes, G. (2017). nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region. Monthly Notices of the Royal Astronomical Society, 464(2), 2027-2038. https://doi.org/10.1093/mnras/stw2424

We examine the properties of the galaxies and dark matter haloes residing in the cluster infall region surrounding the simulated _ cold dark matter galaxy cluster studied by Elahi et al. at z = 0. The 1.1 × 1015 h−1M_ galaxy cluster has been simulate... Read More about nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region.

Linking the structural properties of galaxies and their star formation histories with STAGES (2015)
Journal Article
Hoyos, C., Aragón-Salamanca, A., Gray, M. E., Wolf, C., Maltby, D. T., Bell, E. F., …Jogee, S. (2016). Linking the structural properties of galaxies and their star formation histories with STAGES. Monthly Notices of the Royal Astronomical Society, 455(1), 295-307. https://doi.org/10.1093/mnras/stv2321

We study the links between star formation history and structure for a large mass-selected galaxy sample at 0.05 ≤ zphot ≤ 0.30. The galaxies inhabit a very broad range of environments, from cluster cores to the field. Using Hubble Space Telescope (HS... Read More about Linking the structural properties of galaxies and their star formation histories with STAGES.

OMEGA - OSIRIS Mapping of Emission-line Galaxies in A901/2: I. Survey description, data analysis, and star formation and AGN activity in the highest density regions (2015)
Journal Article
Chies-Santos, A., Rodriguez del Pino, B., Aragón-Salamanca, A., Bamford, S., Gray, M., Wolf, C., …Weinzirl, T. (2015). OMEGA - OSIRIS Mapping of Emission-line Galaxies in A901/2: I. Survey description, data analysis, and star formation and AGN activity in the highest density regions. Monthly Notices of the Royal Astronomical Society, 450(4), 4458-4474. https://doi.org/10.1093/mnras/stv779

We present an overview of and first results from the OMEGA (OSIRIS Mapping of Emission-line Galaxies in the multicluster system A901/2) survey. The ultimate goal of this project is to study star formation and active galactic nucleus (AGN) activity ac... Read More about OMEGA - OSIRIS Mapping of Emission-line Galaxies in A901/2: I. Survey description, data analysis, and star formation and AGN activity in the highest density regions.

Galaxy sizes as a function of environment at intermediate redshift from the ESO Distant Cluster Survey (2015)
Journal Article
Kelkar, K., Aragón-Salamanca, A., Gray, M., Maltby, D., Vulcani, B., De Lucia, G., Poggianti, B., & Zaritsky, D. (2015). Galaxy sizes as a function of environment at intermediate redshift from the ESO Distant Cluster Survey. Monthly Notices of the Royal Astronomical Society, 450(2), https://doi.org/10.1093/mnras/stv670

In order to assess whether the environment has a significant effect on galaxy sizes, we compare the mass–size relations of cluster and field galaxies in the 0.4<z<0.8 red-shift range from the ESO Distant Cluster Survey (EDisCS) using Hubble Space Tel...

Galaxy Cluster Mass Reconstruction Project – II. Quantifying scatter and bias using contrasting mock catalogues (2015)
Journal Article
Old, L., Wojtak, R., Mamon, G. A., Skibba, R. A., Pearce, F. R., Croton, D., …Tempel, E. (2015). Galaxy Cluster Mass Reconstruction Project – II. Quantifying scatter and bias using contrasting mock catalogues. Monthly Notices of the Royal Astronomical Society, 449(2), 1897-1920. https://doi.org/10.1093/mnras/stv421

This paper is the second in a series in which we perform an extensive comparison of various galaxy-based cluster mass estimation techniques that utilize the positions, velocities and colours of galaxies. Our aim is to quantify the scatter, systematic... Read More about Galaxy Cluster Mass Reconstruction Project – II. Quantifying scatter and bias using contrasting mock catalogues.

Galaxy cluster mass reconstruction project – I. Methods and first results on galaxy-based techniques (2014)
Journal Article
Old, L., Skibba, R., Pearce, F. R., Croton, D., Muldrew, S. I., Muñoz-Cuartas, J., …Wojtak, R. (2014). Galaxy cluster mass reconstruction project – I. Methods and first results on galaxy-based techniques. Monthly Notices of the Royal Astronomical Society, 441(2), 1513-1536. https://doi.org/10.1093/mnras/stu545

This paper is the first in a series in which we perform an extensive comparison of various galaxy-based cluster mass estimation techniques that utilize the positions, velocities and colours of galaxies. Our primary aim is to test the performance of t... Read More about Galaxy cluster mass reconstruction project – I. Methods and first results on galaxy-based techniques.