Search Results - "Oman, Kyle A."

The milky way total mass profile as inferred from Gaia DR2 by Cautun, Marius, Benítez-Llambay, Alejandro, Deason, Alis J, Frenk, Carlos S, Fattahi, Azadeh, Gómez, Facundo A, Grand, Robert J J, Oman, Kyle A, Navarro, Julio F, Simpson, Christine M

“…ABSTRACT We determine the Milky Way (MW) mass profile inferred from fitting physically motivated models to the Gaia DR2 Galactic rotation curve and other data…”
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Non-circular motions and the diversity of dwarf galaxy rotation curves by Oman, Kyle A, Marasco, Antonino, Navarro, Julio F, Frenk, Carlos S, Schaye, Joop, Benítez-Llambay, Alejandro

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The apostle project: Local Group kinematic mass constraints and simulation candidate selection by Fattahi, Azadeh, Navarro, Julio F., Sawala, Till, Frenk, Carlos S., Oman, Kyle A., Crain, Robert A., Furlong, Michelle, Schaller, Matthieu, Schaye, Joop, Theuns, Tom, Jenkins, Adrian

“…We use a large sample of isolated dark matter halo pairs drawn from cosmological N-body simulations to identify candidate systems whose kinematics match that…”
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The APOSTLE simulations: solutions to the Local Group's cosmic puzzles by Sawala, Till, Frenk, Carlos S., Fattahi, Azadeh, Navarro, Julio F., Bower, Richard G., Crain, Robert A., Vecchia, Claudio Dalla, Furlong, Michelle, Helly, John. C., Jenkins, Adrian, Oman, Kyle A., Schaller, Matthieu, Schaye, Joop, Theuns, Tom, Trayford, James, White, Simon D. M.

“…The Local Group galaxies offer some of the most discriminating tests of models of cosmic structure formation. For example, observations of the Milky Way (MW)…”
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Subhalo destruction in the Apostle and Auriga simulations by Richings, Jack, Frenk, Carlos, Jenkins, Adrian, Robertson, Andrew, Fattahi, Azadeh, Grand, Robert J J, Navarro, Julio, Pakmor, Rüdiger, Gomez, Facundo A, Marinacci, Federico, Oman, Kyle A

“…ABSTRACT N-body simulations make unambiguous predictions for the abundance of substructures within dark matter haloes. However, the inclusion of baryons in the…”
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The core–cusp problem: a matter of perspective by Genina, Anna, Benítez-Llambay, Alejandro, Frenk, Carlos S., Cole, Shaun, Fattahi, Azadeh, Navarro, Julio F., Oman, Kyle A., Sawala, Till, Theuns, Tom

“…Abstract The existence of two kinematically and chemically distinct stellar subpopulations in the Sculptor and Fornax dwarf galaxies offers the opportunity to…”
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A homogeneous measurement of the delay between the onsets of gas stripping and star formation quenching in satellite galaxies of groups and clusters by Oman, Kyle A, Bahé, Yannick M, Healy, Julia, Hess, Kelley M, Hudson, Michael J, Verheijen, Marc A W

“…ABSTRACT We combine orbital information from N-body simulations with an analytic model for star formation quenching and SDSS observations to infer the…”
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The oldest and most metal-poor stars in the APOSTLE Local Group simulations by Starkenburg, Else, Oman, Kyle A, Navarro, Julio F, Crain, Robert A, Fattahi, Azadeh, Frenk, Carlos S, Sawala, Till, Schaye, Joop

“…We examine the spatial distribution of the oldest and most metal-poor stellar populations of Milky Way-sized galaxies using the A Project Of Simulating The…”
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Baryonic clues to the puzzling diversity of dwarf galaxy rotation curves by Santos-Santos, Isabel M E, Navarro, Julio F, Robertson, Andrew, Benítez-Llambay, Alejandro, Oman, Kyle A, Lovell, Mark R, Frenk, Carlos S, Ludlow, Aaron D, Fattahi, Azadeh, Ritz, Adam

“…ABSTRACT We use a compilation of disc galaxy rotation curves to assess the role of the luminous component (‘baryons’) in the rotation curve diversity problem…”
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The distinct stellar metallicity populations of simulated Local Group dwarfs by Genina, Anna, Frenk, Carlos S, Benítez-Llambay, Alejandro, Cole, Shaun, Navarro, Julio F, Oman, Kyle A, Fattahi, Azadeh

“…ABSTRACT A number of Local Group dwarf galaxies are known to have two spatially segregated stellar metallicity populations, a centrally concentrated metal-rich…”
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Robust H i kinematics of gas-rich ultra-diffuse galaxies: hints of a weak-feedback formation scenario by Mancera Piña, Pavel E, Fraternali, Filippo, Oman, Kyle A, Adams, Elizabeth A K, Bacchini, Cecilia, Marasco, Antonino, Oosterloo, Tom, Pezzulli, Gabriele, Posti, Lorenzo, Leisman, Lukas, Cannon, John M, di Teodoro, Enrico M, Gault, Lexi, Haynes, Martha P, Reiter, Kameron, Rhode, Katherine L, Salzer, John J, Smith, Nicholas J

“…ABSTRACT We study the gas kinematics of a sample of six isolated gas-rich low surface brightness galaxies, of the class called ultra-diffuse galaxies (UDGs)…”
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Quenching star formation in cluster galaxies by Taranu, Dan S., Hudson, Michael J., Balogh, Michael L., Smith, Russell J., Power, Chris, Oman, Kyle A., Krane, Brad

“…In order to understand the processes that quench star formation in cluster galaxies, we construct a library of subhalo orbits drawn from ... cold dark matter…”
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Gas and Star Formation in Satellites of Milky Way Analogs by Jones, Michael G., Sand, David J., Karunakaran, Ananthan, Spekkens, Kristine, Oman, Kyle A., Bennet, Paul, Besla, Gurtina, Crnojević, Denija, Cuillandre, Jean-Charles, Fielder, Catherine E., Gwyn, Stephen, Mutlu-Pakdil, Burçin

“…Abstract We have imaged the entirety of eight (plus one partial) Milky Way (MW)–like satellite systems, a total of 42 (45) satellites, from the Satellites…”
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The ALFALFA H i velocity width function by Oman, Kyle A

“…ABSTRACT We make the most precise determination to date of the number density of extragalactic 21-cm radio sources as a function of their spectral line widths…”
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Satellite quenching time-scales in clusters from projected phase space measurements matched to simulated orbits by Oman, Kyle A, Hudson, Michael J

“…We measure the star formation quenching efficiency and time-scale in cluster environments. Our method uses N-body simulations to estimate the probability…”
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Tidal stripping and the structure of dwarf galaxies in the Local Group by Fattahi, Azadeh, Navarro, Julio F, Frenk, Carlos S, Oman, Kyle A, Sawala, Till, Schaller, Matthieu

“…Abstract The shallow faint-end slope of the galaxy mass function is usually reproduced in Λ cold dark matter (ΛCDM) galaxy formation models by assuming that…”
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No need for dark matter: resolved kinematics of the ultra-diffuse galaxy AGC 114905 by Mancera Piña, Pavel E, Fraternali, Filippo, Oosterloo, Tom, Adams, Elizabeth A K, Oman, Kyle A, Leisman, Lukas

“…ABSTRACT We present new H i interferometric observations of the gas-rich ultra-diffuse galaxy AGC 114905, which previous work, based on low-resolution data,…”
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The many reasons that the rotation curves of low-mass galaxies can fail as tracers of their matter distributions by Downing, Eleanor R, Oman, Kyle A

“…ABSTRACT It is routinely assumed that galaxy rotation curves are equal to their circular velocity curves (modulo some corrections) such that they are good…”
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The “Building Blocks” of Stellar Halos by Oman, Kyle, Starkenburg, Else, Navarro, Julio

“…The stellar halos of galaxies encode their accretion histories. In particular, the median metallicity of a halo is determined primarily by the mass of the most…”
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The unexpected diversity of dwarf galaxy rotation curves by Oman, Kyle A., Navarro, Julio F., Fattahi, Azadeh, Frenk, Carlos S., Sawala, Till, White, Simon D. M., Bower, Richard, Crain, Robert A., Furlong, Michelle, Schaller, Matthieu, Schaye, Joop, Theuns, Tom

“…We examine the circular velocity profiles of galaxies in Λ cold dark matter (CDM) cosmological hydrodynamical simulations from the EAGLE and LOCAL GROUPS…”
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