Browsing by Subject "Galactic halos"

Browsing by Subject "Galactic halos"

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    The CFHT large area U-band deep survey (CLAUDS) 
    Sawicki, Marcin, 1969-; Arnouts, Stephane; Huang, Jiasheng; Coupon, Jean; Golob, Anneya; Gwyn, Stephen; Moutard, Thibaud; Iwata, Ikuru; Chen, Lingjian; Thibert, Nathalie (Oxford University Press on behalf of the Royal Astronomical Society, 2019-09-09)

    The Canada–France–Hawaii Telescope (CFHT) Large Area U-band Deep Survey (CLAUDS) uses data taken with the MegaCam mosaic imager on CFHT to produce images of 18.60 de ...


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    Clustering and dark matter halos of ultra-massive passively evolving galaxies and passive galaxy groups at z ~ 1.6 
    Cheema, Gurpreet (Halifax, N.S. : Saint Mary's University, 2017)
    Using a sample of gzK selected passive galaxies at z ~ 1.6 covering an effective area of 27 deg[superscript 2], we used the clustering measurements of Ultra Massive Passively Evolving Galaxies (UMPEGs, M[subscript stellar] ...

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    Evidence for the hierarchical formation of the galactic spheroid 
    West, Michael J.; Cote, Patrick; Marzke, Ronald O.; Minniti, Dante (American Astronomical Society, 2000-04)
    The possibility that the Galactic spheroid was assembled from isolated, chemically distinct proto-Galactic fragments is investigated using a Monte Carlo technique designed to simulate the chemical evolution of the Galaxy ...

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    The halo shape and evolution of polar disc galaxies 
    Snaith, O. N.; Gibson, Brad K.; Brook, C. B.; Knebe, A.; Thacker, Robert John, 1970-; Quinn, T. R.; Governato, F.; Tissera, P. B. (Oxford University Press, 2012-09)
    We examine the properties and evolution of a simulated polar disc galaxy. This galaxy is composed of two orthogonal discs, one of which contains old stars (old stellar disc) and the other both younger stars and cold gas ...

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    Hybrid cosmological simulations with stream velocities 
    Richardson, Mark L. A.; Scannapieco, Evan; Thacker, Robert John, 1970- (American Astronomical Society, 2013-07-10)
    In the early universe, substantial relative “stream” velocities between the gas and dark matter arise due to radiation pressure and persist after recombination. To assess the impact of these velocities on high-redshift ...

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    Investigating galaxy size growth and stellar mass assembly through the buildup of stellar haloes since z ∼ 1.1 
    Williams, Devin J. (Halifax, N.S. : Saint Mary's University, 2023-08-03)
    In our current theoretical framework of galaxy formation and evolution, galaxies assemble stellar halo components through galaxy-galaxy interactions and accretion of ex-situ material. Studying this buildup of stellar haloes ...

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    Investigation of resonance states in [superscript]11Li 
    Singh, Mukhwinder (Halifax, N.S. : Saint Mary's University, 2025-02-19)

    Abstract: Halo nuclei, such as 11Li, exhibit a unique structure characterized by a few neutrons that extend far from the core, forming a diffuse neutron halo. Understanding the resonance states in 11Li is ...


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    MAGICC haloes: confronting simulations with observations of the circumgalactic medium at z = 0 
    Stinson, G. S.; Brook, C.; Prochaska, J. Xavier; Hennawi, Joe; Shen, Sijing; Wadsley, J.; Pontzen, Andrew; Couchman, H. M. P.; Quinn, T.; Maccio, Andrea V.; Gibson, Brad K. (Wiley-Blackwell, 2012-09)
    We explore the circumgalactic medium (CGM) of two simulated star-forming galaxies with luminosities L ≈ 0.1 and 1 L★ generated using the smooth particle hydrodynamic code GASOLINE. These simulations are ...

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    nIFTy galaxy cluster simulations – I. Dark matter and non-radiative models 
    Sembolini, Federico; Yepes, Gustavo; Pearce, Frazer R.; Knebe, Alexander; Kay, Scott T.; Power, Chris; Cui, Weiguang; Beck, Alexander M.; Borgani, Stefano; Vecchia, Claudio Dalla; Thacker, Robert John, 1970- (Oxford University Press, 2016-04-21)
    We have simulated the formation of a galaxy cluster in a [lambda] cold dark matter universe using 13 different codes modelling only gravity and non-radiative hydrodynamics (RAMSES, ART, AREPO, HYDRA and nine incarnations ...

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    nIFTy galaxy cluster simulations – IV. Quantifying the influence of baryons on halo properties 
    Cui, Weiguang; Power, Chris; Knebe, Alexander; Kay, Scott T.; Sembolini, Federico; Elahi, Pascal J.; Yepes, Gustavo; Pearce, Frazer; Cunnama, Daniel; Beck, Alexander M.; Thacker, Robert John, 1970- (Oxford University Press, 2016-06-01)
    Building on the initial results of the nIFTy simulated galaxy cluster comparison, we compare and contrast the impact of baryonic physics with a single massive galaxy cluster, run with 11 state-of-the-art codes, spanning ...

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    Peaks above the Maxwellian Sea: a new approach to finding substructures in N-body haloes 
    Elahi, Pascal J.; Thacker, Robert John, 1970-; Widrow, Lawrence M. (Wiley-Blackwell, 2011-11)
    We describe a new algorithm for finding substructures within dark matter haloes from N-body simulations. The algorithm relies upon the fact that dynamically distinct substructures in a halo will have a local velocity ...