Search Results - "Nataf, D. M."

HERBS II: Detailed chemical compositions of Galactic bulge stars by Duong, L, Asplund, M, Nataf, D M, Freeman, K C, Ness, M

“…ABSTRACT This work explores the detailed chemistry of the Milky Way bulge using the HERMES spectrograph on the Anglo-Australian Telescope. Here, we present the…”
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OGLE-III Detection of the Anomalous Galactic Bulge Red Giant Branch Bump: Evidence of Enhanced Helium Enrichment by Nataf, D. M, Udalski, A, Gould, A, Pinsonneault, M. H

“…We measure the red giant branch bump (RGBB) of the Galactic bulge, the most metal-rich RGBB ever detected. The RGBB luminosity function peaks at the expected…”
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THE GRADIENTS IN THE 47 Tuc RED GIANT BRANCH BUMP AND HORIZONTAL BRANCH ARE CONSISTENT WITH A CENTRALLY CONCENTRATED, HELIUM-ENRICHED SECOND STELLAR GENERATION by NATAF, D. M, GOULD, A, PINSONNEAULT, M. H, STETSON, P. B

“…We combine ground- and space-based photometry of the Galactic globular cluster 47 Tuc to measure four independent lines of evidence for a helium gradient in…”
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On the correlation between metallicity and the X-shaped morphology of the Milky Way bulge by Nataf, D. M., Cassisi, S., Athanassoula, E.

“…We demonstrate that failure to properly account for stellar evolution can bias results in determinations of the spatial morphology of Galactic bulge stars,…”
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THE OPTICAL GRAVITATIONAL LENSING EXPERIMENT: ANALYSIS OF THE BULGE RR LYRAE POPULATION FROM THE OGLE-III DATA by PIETRUKOWICZ, P, UDALSKI, A, ULACZYK, K, SOSZYNSKI, I, NATAF, D. M, WYRZYKOWSKI, L, POLESKI, R, KOZLOWSKI, S, SZYMANSKI, M. K, KUBIAK, M, PIETRZYNSKI, G

“…We have analyzed the data on 16,836 RR Lyrae (RR Lyr) variables observed toward the Galactic bulge during the third phase of the Optical Gravitational Lensing…”
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The Magellanic Edges Survey I: Description and first results by Cullinane, L R, Mackey, A D, Da Costa, G S, Koposov, S E, Belokurov, V, Erkal, D, Koch, A, Kunder, A, Nataf, D M

“…ABSTRACT We present an overview of, and first science results from, the Magellanic Edges Survey (MagES), an ongoing spectroscopic survey mapping the kinematics…”
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HERBS I: Metallicity and alpha enhancement along the Galactic bulge minor axis by Duong, L, Asplund, M, Nataf, D M, Freeman, K C, Ness, M, Howes, L M

“…ABSTRACT To better understand the origin and evolution of the Milky Way bulge, we have conducted a survey of bulge red giant branch and clump stars using the…”
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Extremely metal-poor stars from the cosmic dawn in the bulge of the Milky Way by Howes, L. M., Casey, A. R., Asplund, M., Keller, S. C., Yong, D., Nataf, D. M., Poleski, R., Lind, K., Kobayashi, C., Owen, C. I., Ness, M., Bessell, M. S., Da Costa, G. S., Schmidt, B. P., Tisserand, P., Udalski, A., Szymański, M. K., Soszyński, I., Pietrzyński, G., Ulaczyk, K., Wyrzykowski, Ł., Pietrukowicz, P., Skowron, J., Kozłowski, S., Mróz, P.

“…The first stars and their immediate successors should be found today in the central regions (bulges) of galaxies; old, metal-poor stars have now been found in…”
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The GALAH survey: properties of the Galactic disc(s) in the solar neighbourhood by Duong, L, Freeman, K C, Asplund, M, Casagrande, L, Buder, S, Lind, K, Ness, M, Bland-Hawthorn, J, De Silva, G M, D'Orazi, V, Kos, J, Lewis, G F, Lin, J, Martell, S L, Schlesinger, K, Sharma, S, Simpson, J D, Zucker, D B, Zwitter, T, Anguiano, B, Da Costa, G S, Hyde, E, Horner, J, Kafle, P R, Nataf, D M, Reid, W, Stello, D, Ting, Y-S, Wyse, R F G

“…Using data from the GALAH pilot survey, we determine properties of the Galactic thin and thick discs near the solar neighbourhood. The data cover a small range…”
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The Gaia-ESO Survey: the most metal-poor stars in the Galactic bulge by Howes, L. M., Asplund, M., Casey, A. R., Keller, S. C., Yong, D., Gilmore, G., Lind, K., Worley, C., Bessell, M. S., Casagrande, L., Marino, A. F., Nataf, D. M., Owen, C. I., Da Costa, G. S., Schmidt, B. P., Tisserand, P., Randich, S., Feltzing, S., Vallenari, A., Allende Prieto, C., Bensby, T., Flaccomio, E., Korn, A. J., Pancino, E., Recio-Blanco, A., Smiljanic, R., Bergemann, M., Costado, M. T., Damiani, F., Heiter, U., Hill, V., Hourihane, A., Jofré, P., Lardo, C., de Laverny, P., Magrini, L., Maiorca, E., Masseron, T., Morbidelli, L., Sacco, G. G., Minniti, D., Zoccali, M.

“…We present the first results of the EMBLA survey (Extremely Metal-poor BuLge stars with AAOmega), aimed at finding metal-poor stars in the Milky Way bulge,…”
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The GALAH survey: scientific motivation by De Silva, G. M., Freeman, K. C., Bland-Hawthorn, J., Martell, S., de Boer, E. Wylie, Asplund, M., Keller, S., Sharma, S., Zucker, D. B., Zwitter, T., Anguiano, B., Bacigalupo, C., Bayliss, D., Beavis, M. A., Bergemann, M., Campbell, S., Cannon, R., Carollo, D., Casagrande, L., Casey, A. R., Da Costa, G., D'Orazi, V., Dotter, A., Duong, L., Heger, A., Ireland, M. J., Kafle, P. R., Kos, J., Lattanzio, J., Lewis, G. F., Lin, J., Lind, K., Munari, U., Nataf, D. M., O'Toole, S., Parker, Q., Reid, W., Schlesinger, K. J., Sheinis, A., Simpson, J. D., Stello, D., Ting, Y.-S., Traven, G., Watson, F., Wittenmyer, R., Yong, D., Žerjal, M.

“…The Galactic Archaeology with HERMES (GALAH) survey is a large high-resolution spectroscopic survey using the newly commissioned High Efficiency and Resolution…”
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HERBS II: Detailed chemical compositions of Galactic bulge stars by Duong, L, Asplund, M, Nataf, D. M, Freeman, K. C, Ness, M

“…This work explores the detailed chemistry of the Milky Way bulge using the HERMES spectrograph on the Anglo-Australian Telescope. Here we present the abundance…”
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Buckling bars in nearly face-on galaxies observed with MaNGA by Xiang, K. M, Nataf, D. M, Athanassoula, E, Zakamska, N. L, Rowlands, K, Masters, K, Fraser-McKelvie, A, Drory, N, Kraljic, K

“…Over half of disk galaxies are barred, yet the mechanisms for bar formation and the life-time of bar buckling remain poorly understood. In simulations, a thin…”
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The Magellanic Edges Survey I. Description and First Results by Cullinane, L. R, Mackey, A. D, Da Costa, G. S, Koposov, S. E, Belokurov, V, Erkal, D, Koch, A, Kunder, A, Nataf, D. M

“…We present an overview of, and first science results from, the Magellanic Edges Survey (MagES), an ongoing spectroscopic survey mapping the kinematics of red…”
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HERBS I: Metallicity and alpha enhancement along the Galactic bulge minor axis by Duong, L, Asplund, M, Nataf, D. M, Freeman, K. C, Ness, M, Howes, L. M

“…To better understand the origin and evolution of the Milky Way bulge, we have conducted a survey of bulge red giant branch and clump stars using the HERMES…”
Get full text

The EMBLA survey – metal-poor stars in the Galactic bulge by Howes, Louise M., Asplund, Martin, Keller, Stefan C., Casey, Andrew R., Yong, David, Lind, Karin, Frebel, Anna, Hays, Austin, Alves-Brito, Alan, Bessell, Michael S., Casagrande, Luca, Marino, Anna F., Nataf, David M., Owen, Christopher I., Da Costa, Gary S., Schmidt, Brian P., Tisserand, Patrick

“…Cosmological models predict the oldest stars in the Galaxy should be found closest to the centre of the potential well, in the bulge. The Extremely Metal-poor…”
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Buckling Bars in Nearly Face-on Galaxies Observed with MaNGA by Xiang, Katherine M., Nataf, David M., Athanassoula, E., Zakamska, Nadia L., Rowlands, Kate, Masters, Karen, Fraser-McKelvie, Amelia, Drory, Niv, Kraljic, Katarina

“…Abstract Over half of disk galaxies are barred, yet the mechanisms for bar formation and the lifetime of bar buckling remain poorly understood. In simulations,…”
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UKIRT-2017-BLG-001Lb: A giant planet detected through the dust by Shvartzvald, Y, Novati, S. Calchi, Gaudi, B. S, Bryden, G, Nataf, D. M, Penny, M. T, Beichman, C, Henderson, C. B, Jacklin, S, Schlafly, E. F, Huston, M. J

“…We report the discovery of a giant planet in event UKIRT-2017-BLG-001, detected by the UKIRT microlensing survey. The mass ratio between the planet and its…”
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Before the Bar: Kinematic Detection of A Spheroidal Metal-Poor Bulge Component by Kunder, Andrea, Rich, R. M, Storm, J, Nataf, D. M, De Propris, R, Walker, A. R, Bono, G, Johnson, C. I, Shen, J, Li, Z. Y

“…We present 947 radial velocities of RR Lyrae variable stars in four fields located toward the Galactic bulge, observed within the data from the ongoing Bulge…”
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The GALAH survey: properties of the Galactic disk(s) in the solar neighbourhood by Duong, L, Freeman, K. C, Asplund, M, Casagrande, L, Buder, S, Lind, K, Ness, M, Bland-Hawthorn, J, De Silva, G. M, D'Orazi, V, Kos, J, Lewis, G. F, Lin, J, Martell, S. L, Schlesinger, K, Sharma, S, Simpson, J. D, Zucker, D. B, Zwitter, T, Anguiano, B, Da Costa, G. S, Hyde, E, Horner, J, Kafle, P. R, Nataf, D. M, Reid, W, Stello, D, Ting, Y. -S, Wyse, R. F. G

“…Using data from the GALAH pilot survey, we determine properties of the Galactic thin and thick disks near the solar neighbourhood. The data cover a small range…”
Get full text