90 citations · 620 across the 29 of their papers we have counts for
21 papers · 1 filter
Abundances in 78 metal-rich bulge spheroid stars from APOGEE
H. Ernandes, B. Barbuy, C. Chiappini +9
The inner Galaxy is the most complex region of the Milky Way, comprising the bulge, inner thin and thick discs, and inner halo; the formation of the bar transferred gas and stars f…
Revisited parameters for the twin bulge globular clusters NGC 6528 and NGC 6553
S. Ortolani, S. O. Souza, D. Nardiello +2
NGC 6528 and NGC 6553 are among the most metal-rich globular clusters in the Galactic bulge. They represent the upper end of the chemical enrichment in the Galaxy, and can inform o…
Combined Gemini-South and HST photometric analysis of the globular cluster NGC 6558. The age of the metal-poor population of the Galactic Bulge
S. O. Souza, M. Libralato, D. Nardiello +8
NGC~6558 is a low-galactic latitude globular cluster projected in the direction of the Galactic bulge. Due to high reddening, this region presents challenges in deriving accurate p…
The VISCACHA survey -- VII. Assembly history of the Magellanic Bridge and SMC Wing from star clusters
R. A. P. Oliveira, F. F. S. Maia, B. Barbuy +15
The formation scenario of the Magellanic Bridge during an encounter between the Large and Small Magellanic Clouds Myr ago, as proposed by -body models, would be impri…
Chrono-chemodynamical analysis of the globular cluster NGC 6355: Looking for the fundamental bricks of the Bulge
Stefano O. Souza, Heitor Ernandes, Marica Valentini +7
The information on Galactic assembly time is imprinted on the chemodynamics of globular clusters. This makes them important probes that help us to understand the formation and evol…
The VISCACHA survey -- V. Rejuvenating three faint SMC clusters
E. Bica, F. F. S. Maia, R. A. P. Oliveira +9
We present the analysis of three faint clusters of the Small Magellanic Cloud RZ82, HW42 and RZ158. We employed the SOAR telescope instrument SAM with adaptive optics, allowing us…
Reconstructing the Disrupted Dwarf Galaxy -Sausage/Enceladus Using its Stars and Globular Clusters
Guilherme Limberg, Stefano O. Souza, Angeles Pérez-Villegas +3
We combine spectroscopic, photometric, and astrometric information from APOGEE data release 17 and early data release 3 to perform a self-consistent characterization of $Gai…
The VISCACHA survey -- IV. The SMC West Halo in 8D
B. Dias, M. C. Parisi, M. Angelo +18
The structure of the Small Magellanic Cloud (SMC) is very complex, in particular in the periphery that suffers more from the interactions with the Large Magellanic Cloud (LMC). A w…
Precise distances from OGLE-IV member RR Lyrae stars in six bulge globular clusters
R. A. P. Oliveira, S. Ortolani, B. Barbuy +6
Context. RR Lyrae stars are useful standard candles allowing one to derive accurate distances for old star clusters. Based on the recent catalogues from OGLE-IV and Gaia Early Data…
Photo-chemo-dynamical analysis and the origin of the bulge globular cluster Palomar 6
Stefano O. Souza, Marica Valentini, Beatriz Barbuy +7
Palomar 6 (Pal~6) is a moderately metal-poor globular cluster projected towards the Galactic bulge. A full analysis of the cluster can give hints on the early chemical enrichment o…
UVES analysis of red giants in the bulge globular cluster NGC 6522
B. Barbuy, E. Cantelli, L. Muniz +10
NGC 6522 is a moderately metal-poor bulge globular cluster ([Fe/H]1.0), and it is a well-studied representative among a number of moderately metal-poor blue horizontal bra…
Abundance Patterns of and Neutron-capture Elements in the Helmi Stream
Guilherme Limberg, Rafael M. Santucci, Silvia Rossi +6
We identified 8 additional stars as members of the Helmi stream (HStr) in the combined GALAH+ DR3 and EDR3 catalog. By consistently reevaluating claimed members from the lit…
CAPOS: the bulge Cluster APOgee Survey II. The Intriguing "Sequoia" Globular Cluster FSR 1758
María Romero-Colmenares, José G. Fernández-Trincado, Doug Geisler +15
We present results from a study of fifteen red giant members of the intermediate-metallicity globular cluster (GC) FSR 1758 using high-resolution near-infrared spectra collected wi…
The VISCACHA survey -- III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D
B. Dias, M. S. Angelo, R. A. P. Oliveira +15
Context. The interactions between the SMC and LMC created the Magellanic Bridge, a stream of gas and stars pulled out of the SMC towards the LMC about 150 Myr ago. The tidal counte…
VVV CL001: Likely the Most Metal-Poor Surviving Globular Cluster in the Inner Galaxy
José G. Fernández-Trincado, Dante Minniti, Stefano O. Souza +11
We present the first high-resolution abundance analysis of the globular cluster VVV~CL001, which resides in a region dominated by high interstellar reddening towards the Galactic B…
APOGEE discovery of a chemically atypical star disrupted from NGC 6723 and captured by the Milky Way bulge
José G. Fernández-Trincado, Timothy C. Beers, Dante Minniti +26
The central (`bulge') region of the Milky Way is teeming with a significant fraction of mildly metal-deficient stars with atmospheres that are strongly enriched in cyanogen ($^{12}…
The enigmatic globular cluster UKS~1 obscured by the bulge: \textit{H}-band discovery of nitrogen-enhanced stars
José G. Fernández-Trincado, Dante Minniti, Timothy C. Beers +13
The presence of nitrogen-enriched stars in globular clusters provides key evidence for multiple stellar populations (MPs), as has been demonstrated with globular cluster spectrosco…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XX. Ages of single and multiple stellar populations in seven bulge globular clusters
R. A. P. Oliveira, S. O. Souza, L. O. Kerber +23
In the present work we analyzed seven globular clusters selected from their location in the Galactic bulge and with metallicity values in the range $-1.30\lesssim\rm{[Fe/H]}\lesssi…
Globular clusters in the inner Galaxy classified from dynamical orbital criteria
Angeles Pérez-Villegas, Beatriz Barbuy, Leandro Kerber +3
Globular clusters (GCs) are the most ancient stellar systems in the Milky Way. Therefore, they play a key role in the understanding of the early chemical and dynamical evolution of…
The VISCACHA survey -- deep and resolved photometry of star clusters in the Magellanic Clouds
Bruno Dias, Francisco Maia, Leandro Kerber +24
The VISCACHA (VIsible Soar photometry of star Clusters in tApii and Coxi HuguA\footnote{LMC and SMC names in the Tupi-Guarani language spoken by native people in Brazil}) Survey is…
The VISCACHA survey - I. Overview and First Results
Francisco F. S. Maia, Bruno Dias, João F. C. Santos +15
The VISCACHA (VIsible Soar photometry of star Clusters in tApii and Coxi HuguA) Survey is an ongoing project based on deep photometric observations of Magellanic Cloud star cluster…