Search Results - "Chiappini, Cristina"

Chemodynamical History of the Galactic Bulge by Barbuy, Beatriz, Chiappini, Cristina, Gerhard, Ortwin

“…The Galactic Bulge can uniquely be studied from large samples of individual stars and is therefore of prime importance for understanding the stellar population…”
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CHEMICAL CARTOGRAPHY WITH APOGEE: METALLICITY DISTRIBUTION FUNCTIONS AND THE CHEMICAL STRUCTURE OF THE MILKY WAY DISK by Hayden, Michael R., Bovy, Jo, Holtzman, Jon A., Nidever, David L., Bird, Jonathan C., Weinberg, David H., Andrews, Brett H., Majewski, Steven R., Prieto, Carlos Allende, Anders, Friedrich, Beers, Timothy C., Bizyaev, Dmitry, Chiappini, Cristina, Cunha, Katia, Frinchaboy, Peter, García-Her andez, D. A., García Pérez, Ana E., Girardi, Léo, Harding, Paul, Hearty, Fred R., Johnson, Jennifer A., Mészáros, Szabolcs, Minchev, Ivan, O'Connell, Robert, Pan, Kaike, Robin, Annie C., Schiavon, Ricardo P., Schneider, Donald P., Schultheis, Mathias, Shetrone, Matthew, Skrutskie, Michael, Steinmetz, Matthias, Smith, Verne, Wilson, John C., Zamora, Olga, Zasowski, Gail

“…ABSTRACT Using a sample of 69,919 red giants from the SDSS-III/APOGEE Data Release 12, we measure the distribution of stars in the [ /Fe] versus [Fe/H] plane…”
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Migration in the shearing sheet and estimates for young open cluster migration by Quillen, Alice C, Nolting, Eric, Minchev, Ivan, De Silva, Gayandhi, Chiappini, Cristina

“…Abstract Using tracer particles embedded in self-gravitating shearing sheet N-body simulations, we investigate the distance in guiding centre radius that stars…”
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Spiral arm crossings inferred from ridges in Gaia stellar velocity distributions by Quillen, Alice C, Carrillo, Ismael, Anders, Friedrich, McMillan, Paul, Hilmi, Tariq, Monari, Giacomo, Minchev, Ivan, Chiappini, Cristina, Khalatyan, Arman, Steinmetz, Matthias

“…The solar neighbourhood contains disc stars that have recently crossed spiral arms in the Galaxy. We propose that boundaries in local velocity distributions…”
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Gas accretion in Milky Way-like galaxies: temporal and radial dependencies by Nuza, Sebastián E, Scannapieco, Cecilia, Chiappini, Cristina, Junqueira, Thiago C, Minchev, Ivan, Martig, Marie

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Phase-space Properties and Chemistry of the Sagittarius Stellar Stream Down to the Extremely Metal-poor ([Fe/H] ≲ −3) Regime by Limberg, Guilherme, Queiroz, Anna B. A., Perottoni, Hélio D., Rossi, Silvia, Amarante, João A. S., Santucci, Rafael M., Chiappini, Cristina, Pérez-Villegas, Angeles, Lee, Young Sun

“…Abstract In this work, we study the phase-space and chemical properties of the Sagittarius (Sgr) stream, the tidal tails produced by the ongoing destruction of…”
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Imprints of fast-rotating massive stars in the Galactic Bulge by Chiappini, Cristina, Frischknecht, Urs, Meynet, Georges, Hirschi, Raphael, Barbuy, Beatriz, Pignatari, Marco, Decressin, Thibaut, Maeder, André

“…Spinstars lead the way NGC 6522, the oldest globular cluster in our Galaxy, probably witnessed the earliest phases of the chemical enrichment of the Universe,…”
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Interpretation of Abundance Ratios by Matteucci, Francesca, Chiappini, Cristina

“…In this paper we discuss abundance ratios and their relation to stellar nucleosynthesis and other parameters of chemical evolution models, reviewing and…”
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The neutron-capture and α-elements abundance ratios scatter in old stellar populations: cosmological simulations of the stellar halo by Scannapieco, Cecilia, Cescutti, Gabriele, Chiappini, Cristina

“…ABSTRACT We investigate the origin of the abundance ratios and scatter of the neutron-capture elements Sr, Ba, and Eu in the stellar halo of a Milky Way-mass…”
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The Formation and Evolution of the Milky Way by Chiappini, Cristina

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s-process production in rotating massive stars at solar and low metallicities by Frischknecht, Urs, Hirschi, Raphael, Pignatari, Marco, Maeder, André, Meynet, George, Chiappini, Cristina, Thielemann, Friedrich-Karl, Rauscher, Thomas, Georgy, Cyril, Ekström, Sylvia

“…Rotation was shown to have a strong impact on the structure and light element nucleosynthesis in massive stars. In particular, models including rotation can…”
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Abundance gradient slopes versus mass in spheroids: predictions by monolithic models by Pipino, Antonio, D'Ercole, Annibale, Chiappini, Cristina, Matteucci, Francesca

“…We investigate whether it is possible to explain the wide range of observed gradients in early-type galaxies in the framework of monolithic models. To do so,…”
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THE METALLICITY DISTRIBUTION FUNCTIONS OF SEGUE G AND K DWARFS: CONSTRAINTS FOR DISK CHEMICAL EVOLUTION AND FORMATION by SCHLESINGER, Katharine J, JOHNSON, Jennifer A, SCHNEIDER, Donald P, CHIAPPINI, Cristina, DA COSTA, Luiz N, MAIA, Marcio A. G, MINCHEV, Ivan, ROCHA-PINTO, Helio, SANTIAGO, Basílio X, ROCKOSI, Constance M, YOUNG SUN LEE, MORRISON, Heather L, SCHÖNRICH, Ralph, ALLENDE PRIETO, Carlos, BEERS, Timothy C, YANNY, Brian, HARDING, Paul

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How many components? Quantifying the complexity of the metallicity distribution in the Milky Way bulge with APOGEE by Rojas-Arriagada, Alvaro, Zasowski, Gail, Schultheis, Mathias, Zoccali, Manuela, Hasselquist, Sten, Chiappini, Cristina, Cohen, Roger E, Cunha, Katia, Fernández-Trincado, José G, Fragkoudi, Francesca, García-Hernández, D A, Geisler, Doug, Gran, Felipe, Lian, Jianhui, Majewski, Steven, Minniti, Dante, Monachesi, Antonela, Nitschelm, Christian, Queiroz, Anna B A

“…ABSTRACT We use data of ∼13 000 stars from the Sloan Digital Sky Survey/Apache Point Observatory Galactic Evolution Experiment survey to study the shape of the…”
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Chemical tagging with APOGEE: discovery of a large population of N-rich stars in the inner Galaxy by Schiavon, Ricardo P, Zamora, Olga, Carrera, Ricardo, Lucatello, Sara, Robin, A C, Ness, Melissa, Martell, Sarah L, Smith, Verne V, Garcia-Hernandez, D A, Manchado, Arturo, Schonrich, Ralph, Bastian, Nate, Chiappini, Cristina, Shetrone, Matthew, Mackereth, J Ted, Williams, Rob A, Meszaros, Szabolcs, Prieto, Carlos Allende, Anders, Friedrich, Bizyaev, Dmitry, Beers, Timothy C, Chojnowski, S Drew, Cunha, Katia, Epstein, Courtney, Frinchaboy, Peter M, Perez, Ana E Garcia, Hearty, Fred R, Holtzman, Jon A, Johnson, Jennifer A, Kinemuchi, Karen, Majewski, Steven R, Muna, Demitri, Nidever, David L, Nguyen, Duy Cuong, O'Connell, Robert W, Oravetz, Daniel, Pan, Kaike, Pinsonneault, Marc, Schneider, Donald P, Schultheis, Matthias, Simmons, Audrey, Skrutskie, Michael F, Sobeck, Jennifer, Wilson, John C, Zasowski, Gail

“…Formation of globular clusters (GCs), the Galactic bulge, or galaxy bulges in general is an important unsolved problem in Galactic astronomy. Homogeneous…”
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Exploring the Galactic Warp through Asymmetries in the Kinematics of the Galactic Disk by Cheng, Xinlun, Anguiano, Borja, Majewski, Steven R., Hayes, Christian, Arras, Phil, Chiappini, Cristina, Hasselquist, Sten, de Andrade Queiroz, Anna Bárbara, Nitschelm, Christian, García-Hernández, Domingo Aníbal, Lane, Richard R., Roman-Lopes, Alexandre, Frinchaboy, Peter M.

“…Previous analyses of large databases of Milky Way stars have revealed the stellar disk of our Galaxy to be warped and that this imparts a strong signature on…”
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The R-Process Alliance: First Release from the Northern Search for r-process-enhanced Metal-poor Stars in the Galactic Halo by Sakari, Charli M., Placco, Vinicius M., Farrell, Elizabeth M., Roederer, Ian U., Wallerstein, George, Beers, Timothy C., Ezzeddine, Rana, Frebel, Anna, Hansen, Terese, Holmbeck, Erika M., Sneden, Christopher, Cowan, John J., Venn, Kim A., Davis, Christopher Evan, Matijevi, Gal, Wyse, Rosemary F. G., Bland-Hawthorn, Joss, Chiappini, Cristina, Freeman, Kenneth C., Gibson, Brad K., Grebel, Eva K., Helmi, Amina, Kordopatis, Georges, Kunder, Andrea, Navarro, Julio, Reid, Warren, Seabroke, George, Steinmetz, Matthias, Watson, Fred

“…This paper presents the detailed abundances and r-process classifications of 126 newly identified metal-poor stars as part of an ongoing collaboration, the…”
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Constraining stellar tidal quality factors from planet‐induced stellar spin‐up by Ilić, Nikoleta, Poppenhaeger, Katja, Queiroz, Anna Barbara, Chiappini, Cristina

“…The dynamical evolution of tight star‐planet systems is influenced by tidal interactions between the star and the planet, as was shown recently. The rate at…”
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The evolution of the Milky Way’s thin disc radial metallicity gradient with K2 asteroseismic ages by Willett, Emma, Miglio, Andrea, Mackereth, J Ted, Chiappini, Cristina, Lyttle, Alexander J, Elsworth, Yvonne, Mosser, Benoît, Khan, Saniya, Anders, Friedrich, Casali, Giada, Grisoni, Valeria

“…ABSTRACT The radial metallicity distribution of the Milky Way’s disc is an important observational constraint for models of the formation and evolution of our…”
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The evolution of the Milky Way’s thin disc radial metallicity gradient with K2 asteroseismic ages by Willett, Emma, Miglio, Andrea, Mackereth, J. Ted, Chiappini, Cristina, Lyttle, Alexander J., Elsworth, Yvonne, Mosser, Benoît, Khan, Saniya, Anders, Friedrich, Casali, Giada, Grisoni, Valeria

“…ABSTRACT The radial metallicity distribution of the Milky Way’s disc is an important observational constraint for models of the formation and evolution of our…”
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