Zobrazeno 1 - 10
of 255
pro vyhledávání: '"Warrick J Couch"'
Autor:
Jonah S Gannon, Duncan A Forbes, Jean P Brodie, Aaron J Romanowsky, Warrick J Couch, Anna Ferré-Mateu
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 518:3653-3666
We examine ultra-diffuse galaxies (UDGs) and their relation to non-UDGs in mass-radius-luminosity space. We begin by publishing Keck/KCWI spectroscopy for the Coma cluster UDG Y358, for which we measure both a recessional velocity and velocity disper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a43eaae991299f16e6d66a111a810c04
https://doi.org/10.1093/mnras/stac3264
https://doi.org/10.1093/mnras/stac3264
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 509:261-271
We analyse the surface brightness profiles of disc-type galaxies in the EAGLE simulations in order to investigate the effects of galaxy mass and environment on galaxy profile types. Following observational works, we classify the simulated galaxies by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fda9a6b466af44685feca79a0e00cdac
https://doi.org/10.1093/mnras/stab2934
https://doi.org/10.1093/mnras/stab2934
Autor:
Steven R Janssens, Aaron J Romanowsky, Roberto Abraham, Jean P Brodie, Warrick J Couch, Duncan A Forbes, Seppo Laine, David Martínez-Delgado, Pieter G van Dokkum
We investigate the isolated, quiescent ultra-diffuse galaxy (UDG) DGSAT I and its globular cluster (GC) system using two orbits of Hubble Space Telescope Advanced Camera for Surveys imaging in the F606W and F814W filters. This is the first study of G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3890bf9c5459c7611fc62e6a4230cf3b
http://arxiv.org/abs/2209.09910
http://arxiv.org/abs/2209.09910
Autor:
Maria Luisa Buzzo, Duncan A Forbes, Jean P Brodie, Aaron J Romanowsky, Michelle E Cluver, Thomas H Jarrett, Seppo Laine, Warrick J Couch, Jonah S Gannon, Anna Ferré-Mateu, Nobuhiro Okabe
We use spectral energy distribution (SED) fitting to place constraints on the stellar population properties of 29 quiescent ultra-diffuse galaxies (UDGs) across different environments. We use the fully Bayesian routine PROSPECTOR coupled with archiva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de594bbc80184eb14edf3ee164cf61b5
http://arxiv.org/abs/2208.11819
http://arxiv.org/abs/2208.11819
Autor:
Michele Cantiello, Warrick J. Couch, Duncan A. Forbes, Jonah S. Gannon, Pietro Schipani, Bililign T. Dullo, Enrichetta Iodice, Marilena Spavone
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 494:5293-5297
Using deep g,r,i imaging from the VEGAS survey, we have searched for ultra diffuse galaxies (UDGs) in the IC 1459 group. Assuming they are group members, we identify 9 galaxies with physical sizes and surface brightnesses that match the UDG criteria
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c86fa51d6e62b2541e10a17b3dff5fe
https://doi.org/10.1093/mnras/staa1111
https://doi.org/10.1093/mnras/staa1111
Many disc galaxies in clusters have been found with bulges of similar age or younger than their surrounding discs, at odds with field galaxies of similar morphology and their expected inside-out formation. We use the EAGLE simulations to test potenti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9b856ec5e8000c82a85d45b154f9be1
http://arxiv.org/abs/2201.03137
http://arxiv.org/abs/2201.03137
Autor:
Joel Pfeffer, Mitchell K Cavanagh, Kenji Bekki, Warrick J Couch, Michael J Drinkwater, Duncan A Forbes, Bärbel S Koribalski
The optical morphology of galaxies is strongly related to galactic environment, with the fraction of early-type galaxies increasing with local galaxy density. In this work we present the first analysis of the galaxy morphology-density relation in a c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59cbd7a2b4251c625cfa4f353d5cdb14
Autor:
Arianna Dolfi, Joel Pfeffer, Duncan A Forbes, Warrick J Couch, Kenji Bekki, Jean P Brodie, Aaron J Romanowsky, J M Diederik Kruijssen
We study the present-day rotational velocity ($V_{rot}$) and velocity dispersion (${\sigma}$) profiles of the globular cluster (GC) systems in a sample of 50 lenticular (S0) galaxies from the E-MOSAICS galaxy formation simulations. We find that 82% o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cfd41b64fda466ee92bd808f51ade27
Autor:
Maria Luisa Buzzo, Arianna Cortesi, Duncan A Forbes, Jean P Brodie, Warrick J Couch, Carlos Eduardo Barbosa, Danielle de Brito Silva, Paula Coelho, Ana L Chies-Santos, Carlos Escudero, Leandro Sesto, Karín Menéndez-Delmestre, Thiago S Gonçalves, Clécio R Bom, Alvaro Alvarez-Candal, Analía V Smith Castelli, William Schoenell, Antonio Kanaan, Tiago Ribeiro, Claudia Mendes de Oliveira
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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instname
In this paper, we describe a new method to select globular cluster (GC) candidates, including galaxy subtraction with unsharp masking, template fitting techniques, and the inclusion of Gaia’s proper motions. We report the use of the 12-band photome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaf480e0485f4beb3543f9a5ab908457
http://hdl.handle.net/10261/268872
http://hdl.handle.net/10261/268872
Autor:
Aaron J. Romanowsky, Warrick J. Couch, Song Huang, Nobuhiro Okabe, Duncan A. Forbes, Jonah S. Gannon, Jean P. Brodie, Anna Ferré-Mateu, Steven Janssens
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
It is clear that within the class of ultra-diffuse galaxies (UDGs) there is an extreme range in the richness of their associated globular cluster (GC) systems. Here, we report the structural properties of five UDGs in the Perseus cluster based on dee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47199795ff228f5072f7c245b990bac4
http://arxiv.org/abs/2111.06007
http://arxiv.org/abs/2111.06007