Search Results - "Somerville, Rachel S."

Physical Models of Galaxy Formation in a Cosmological Framework by Somerville, Rachel S, Davé, Romeel

“…Modeling galaxy formation in a cosmological context presents one of the greatest challenges in astrophysics today due to the vast range of scales and numerous…”
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Evolution of the atomic and molecular gas content of galaxies by Popping, Gergö, Somerville, Rachel S., Trager, Scott C.

“…We study the evolution of atomic and molecular gas in galaxies in semi-analytic models of galaxy formation that include new modelling of the partitioning of…”
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The CAMELS Project: Cosmology and Astrophysics with Machine-learning Simulations by Villaescusa-Navarro, Francisco, Anglés-Alcázar, Daniel, Genel, Shy, Spergel, David N., S. Somerville, Rachel, Dave, Romeel, Pillepich, Annalisa, Hernquist, Lars, Nelson, Dylan, Torrey, Paul, Narayanan, Desika, Li, Yin, Philcox, Oliver, La Torre, Valentina, Maria Delgado, Ana, Ho, Shirley, Hassan, Sultan, Burkhart, Blakesley, Wadekar, Digvijay, Battaglia, Nicholas, Contardo, Gabriella, Bryan, Greg L.

“…Abstract We present the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) project. CAMELS is a suite of 4233 cosmological simulations of 25…”
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The relationship between black hole mass and galaxy properties: examining the black hole feedback model in IllustrisTNG by Terrazas, Bryan A, Bell, Eric F, Pillepich, Annalisa, Nelson, Dylan, Somerville, Rachel S, Genel, Shy, Weinberger, Rainer, Habouzit, Mélanie, Li, Yuan, Hernquist, Lars, Vogelsberger, Mark

“…ABSTRACT Supermassive black hole feedback is thought to be responsible for the lack of star formation, or quiescence, in a significant fraction of galaxies. We…”
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The Role of Black Hole Feedback on Size and Structural Evolution in Massive Galaxies by Choi, Ena, Somerville, Rachel S., Ostriker, Jeremiah P., Naab, Thorsten, Hirschmann, Michaela

“…We use cosmological hydrodynamical simulations to investigate the role of feedback from accreting black holes in the evolution of the size, compactness,…”
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Thermal and non-thermal dust sputtering in hydrodynamical simulations of the multiphase interstellar medium by Hu, Chia-Yu, Zhukovska, Svitlana, Somerville, Rachel S, Naab, Thorsten

“…ABSTRACT We study the destruction of interstellar dust via sputtering in supernova (SN) shocks using three-dimensional hydrodynamical simulations. With a novel…”
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The Universe at z > 10: predictions for JWST from the universemachine DR1 by Behroozi, Peter, Conroy, Charlie, Wechsler, Risa H, Hearin, Andrew, Williams, Christina C, Moster, Benjamin P, Yung, L Y Aaron, Somerville, Rachel S, Gottlöber, Stefan, Yepes, Gustavo, Endsley, Ryan

“…ABSTRACT The James Webb Space Telescope (JWST) is expected to observe galaxies at z > 10 that are presently inaccessible. Here, we use a self-consistent…”
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First Results from SMAUG: Characterization of Multiphase Galactic Outflows from a Suite of Local Star-forming Galactic Disk Simulations by Kim, Chang-Goo, Ostriker, Eve C., Somerville, Rachel S., Bryan, Greg L., Fielding, Drummond B., Forbes, John C., Hayward, Christopher C., Hernquist, Lars, Pandya, Viraj

“…Large-scale outflows in star-forming galaxies are observed to be ubiquitous and are a key aspect of theoretical modeling of galactic evolution, the focus of…”
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Synthetic nebular emission from massive galaxies – II. Ultraviolet-line diagnostics of dominant ionizing sources by Hirschmann, Michaela, Charlot, Stephane, Feltre, Anna, Naab, Thorsten, Somerville, Rachel S, Choi, Ena

“…We compute synthetic optical and ultraviolet (UV) emission-line properties of galaxies in a full cosmological framework by coupling, in post-processing,…”
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On the Stellar Populations of Galaxies at z = 9–11: The Growth of Metals and Stellar Mass at Early Times by Tacchella, Sandro, Finkelstein, Steven L., Bagley, Micaela, Dickinson, Mark, Ferguson, Henry C., Giavalisco, Mauro, Graziani, Luca, Grogin, Norman A., Hathi, Nimish, Hutchison, Taylor A., Jung, Intae, Koekemoer, Anton M., Larson, Rebecca L., Papovich, Casey, Pirzkal, Norbert, Rojas-Ruiz, Sofía, Song, Mimi, Schneider, Raffaella, Somerville, Rachel S., Wilkins, Stephen M., Yung, L. Y. Aaron

“…We present a detailed stellar population analysis of 11 bright (H < 26.6) galaxies at z=9−11 (three spectroscopically confirmed) to constrain the chemical…”
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Semi-analytic forecasts for JWST – IV. Implications for cosmic reionization and LyC escape fraction by Yung, L Y Aaron, Somerville, Rachel S, Finkelstein, Steven L, Popping, Gergö, Davé, Romeel, Venkatesan, Aparna, Behroozi, Peter, Ferguson, Harry C

“…ABSTRACT Galaxies forming in low-mass haloes are thought to be primarily responsible for reionizing the Universe during the first billion years after the big…”
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Structural and Star-forming Relations since z ∼ 3: Connecting Compact Star-forming and Quiescent Galaxies by Barro, Guillermo, Faber, S. M., Koo, David C., Dekel, Avishai, Fang, Jerome J., Trump, Jonathan R., Pérez-González, Pablo G., Pacifici, Camilla, Primack, Joel R., Somerville, Rachel S., Yan, Haojing, Guo, Yicheng, Liu, Fengshan, Ceverino, Daniel, Kocevski, Dale D., McGrath, Elizabeth

“…We study the evolution of the scaling relations that compare the effective density ( ) and core density ( kpc) to the stellar masses of star-forming galaxies…”
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The many manifestations of downsizing: hierarchical galaxy formation models confront observations by Fontanot, Fabio, De Lucia, Gabriella, Monaco, Pierluigi, Somerville, Rachel S., Santini, Paola

“…It has been widely claimed that several lines of observational evidence point towards a ‘downsizing’ of the process of galaxy formation over cosmic time. This…”
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The diverse galaxy counts in the environment of high-redshift massive black holes in Horizon-AGN by Habouzit, Mélanie, Volonteri, Marta, Somerville, Rachel S, Dubois, Yohan, Peirani, Sébastien, Pichon, Christophe, Devriendt, Julien

“…ABSTRACT High-redshift quasars are believed to reside in highly biased regions of the Universe, where black hole growth is sustained by an enhanced number of…”
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Properties of simulated galaxies and supermassive black holes in cosmic voids by Habouzit, Mélanie, Pisani, Alice, Goulding, Andy, Dubois, Yohan, Somerville, Rachel S, Greene, Jenny E

“…ABSTRACT Cosmic voids, the underdense regions of the cosmic web, are widely used to constrain cosmology. Voids contain few, isolated galaxies, presumably…”
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THE EVOLUTION OF THE GALAXY REST-FRAME ULTRAVIOLET LUMINOSITY FUNCTION OVER THE FIRST TWO BILLION YEARS by Finkelstein, Steven L., Ryan, Russell E., Papovich, Casey, Dickinson, Mark, Song, Mimi, Somerville, Rachel S., Ferguson, Henry C., Salmon, Brett, Giavalisco, Mauro, Koekemoer, Anton M., Ashby, Matthew L. N., Behroozi, Peter, Castellano, Marco, Dunlop, James S., Faber, Sandy M., Fazio, Giovanni G., Fontana, Adriano, Grogin, Norman A., Hathi, Nimish, Jaacks, Jason, Kocevski, Dale D., Livermore, Rachael, McLure, Ross J., Merlin, Emiliano, Mobasher, Bahram, Newman, Jeffrey A., Rafelski, Marc, Tilvi, Vithal, Willner, S. P.

“…ABSTRACT We present a robust measurement and analysis of the rest-frame ultraviolet (UV) luminosity functions at z = 4-8. We use deep Hubble Space Telescope…”
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The diversity and variability of star formation histories in models of galaxy evolution by Iyer, Kartheik G, Tacchella, Sandro, Genel, Shy, Hayward, Christopher C, Hernquist, Lars, Brooks, Alyson M, Caplar, Neven, Davé, Romeel, Diemer, Benedikt, Forbes, John C, Gawiser, Eric, Somerville, Rachel S, Starkenburg, Tjitske K

“…ABSTRACT Understanding the variability of galaxy star formation histories (SFHs) across a range of time-scales provides insight into the underlying physical…”
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Semi-analytic forecasts for JWST – VI. Simulated light-cones and galaxy clustering predictions by Yung, L Y Aaron, Somerville, Rachel S, Ferguson, Henry C, Finkelstein, Steven L, Gardner, Jonathan P, Davé, Romeel, Bagley, Micaela B, Popping, Gergö, Behroozi, Peter

“…ABSTRACT In anticipation of the new era of high-redshift exploration marked by the commissioning of the James Webb Space Telescope (JWST), we present two sets…”
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Characterizing mass, momentum, energy, and metal outflow rates of multiphase galactic winds in the FIRE-2 cosmological simulations by Pandya, Viraj, Fielding, Drummond B, Anglés-Alcázar, Daniel, Somerville, Rachel S, Bryan, Greg L, Hayward, Christopher C, Stern, Jonathan, Kim, Chang-Goo, Quataert, Eliot, Forbes, John C, Faucher-Giguère, Claude-André, Feldmann, Robert, Hafen, Zachary, Hopkins, Philip F, Kereš, Dušan, Murray, Norman, Wetzel, Andrew

“…ABSTRACT We characterize mass, momentum, energy, and metal outflow rates of multiphase galactic winds in a suite of FIRE-2 cosmological ‘zoom-in’ simulations…”
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Semi-analytic forecasts for JWST – III. Intrinsic production efficiency of Lyman-continuum radiation by Yung, L Y Aaron, Somerville, Rachel S, Popping, Gergö, Finkelstein, Steven L

“…ABSTRACT The James Webb Space Telescope is expected to enable transformational progress in studying galaxy populations in the very early Universe, during the…”
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