activity
20132026
most citedHow Many Components? Quantifying the Complexity of the Metallicity Distribution in the Milky Way Bulge with APOGEE

81 citations · 801 across the 31 of their papers we have counts for

collaborators

31 papers

astro-ph.GA2026

Extinction law and stellar mass in the Nuclear Bulge from kinematically-selected red clump stars

Á. Valenzuela Navarro, M. Zoccali, E. Valenti +10

The Nuclear Bulge of the Milky Way harbors stellar populations that provide crucial insights into galaxy formation processes and serve as a nearby analog for understanding bulge fo…

astro-ph.GA2025★ 4 cited

Globular clusters in \textsc{OrbIT}: complete dynamical characterisation of the globular cluster population of the Milky Way through updated orbital reconstruction

Michele De Leo, Manuela Zoccali, Julio Olivares-Carvajal +3

In hierarchical structure formation, the content of a galaxy is determined both by its in-situ processes and by material added via accretions. Globular clusters in particular repre…

astro-ph.GA2024★ 4 cited

Unveiling VVV/WISE Mira variables on the far side of the Galactic disk: Distances, kinematics and a new extinction law

Rogelio Albarracín, M. Zoccali, J. Olivares Carvajal +8

The structure and kinematics of the Milky Way disk are largely inferred from the solar vicinity. To gain a comprehensive understanding, it is essential to find reliable tracers in…

astro-ph.GA2024★ 8 cited

VVV catalog of ab-type RR Lyrae in the inner Galactic bulge

M. Zoccali, C. Quezada, R. Contreras Ramos +7

Context. Observational evidence has accumulated in the past years, showing that the Galactic bulge includes two populations, a metal poor and a metal rich one that, in addition to…

astro-ph.GA2024★ 38 cited

The VISTA Variables in the Vía Láctea eXtended (VVVX) ESO public survey: Completion of the observations and legacy

R. K. Saito, M. Hempel, J. Alonso-García +143

The ESO public survey VISTA Variables in the Vía Láctea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from . Upon its conclusion, the c…

astro-ph.GA2023

The treasure behind the haystack: MUSE analysis of five recently discovered globular clusters

F. Gran, G. Kordopatis, M. Zoccali +10

After the second data release of Gaia, the number of new globular cluster candidates has increased importantly. However, most of them need to be properly characterised, both spectr…

astro-ph.GA2023★ 47 cited

The Pristine survey -- XXIII. Data Release 1 and an all-sky metallicity catalogue based on Gaia DR3 BP/RP spectro-photometry

Nicolas F. Martin, Else Starkenburg, Zhen Yuan +38

We used the spectro-photometric information of ~219 million stars from Gaia's DR3 to calculate synthetic, narrow-band, metallicity-sensitive CaHK magnitudes that mimic the observat…

astro-ph.GA2022

Spectroscopic analysis of VVV CL001 cluster with MUSE

Julio Olivares Carvajal, Manuela Zoccali, Alvaro Rojas-Arriagada +4

Like most spiral galaxies, the Milky Way contains a population of blue, metal-poor globular clusters and another of red, metal-rich ones. Most of the latter belong to the bulge, an…

astro-ph.GA2021★ 23 cited

Hidden in the Haystack: Low-luminosity globular clusters towards the Milky Way bulge

F. Gran, M. Zoccali, I. Saviane +8

Recent wide-area surveys have enabled us to study the Milky Way with unprecedented detail. Its inner regions, hidden behind dust and gas, have been partially unveiled with the arri…

astro-ph.GA2021★ 37 cited

CAPOS: The bulge Cluster APOgee Survey I. Overview and initial ASPCAP results

Doug Geisler, Sandro Villanova, Julia E. O'Connell +39

Context. Bulge globular clusters (BGCs) are exceptional tracers of the formation and chemodynamical evolution of this oldest Galactic component. However, until now, observational d…

astro-ph.SR2021★ 3 cited

Variable stars in the VVV globular clusters. II. NGC6441, NGC6569, NGC6626 (M28), NGC6656 (M22), 2MASS-GC02, and Terzan10

Javier Alonso-García, Leigh C. Smith, Márcio Catelan +18

The Galactic globular clusters (GGCs) located in the inner regions of the Milky Way suffer from high extinction that makes their observation challenging. The VVV survey provides a…

astro-ph.GA2021★ 9 cited

APOGEE view of the globular cluster NGC 6544

F. Gran, M. Zoccali, A. Rojas-Arriagada +16

The second phase of the APOGEE survey is providing near-infrared, high-resolution, high signal-to-noise spectra of stars in the halo, disk, bar and bulge of the Milky Way. The near…

astro-ph.GA2020★ 81 cited

How Many Components? Quantifying the Complexity of the Metallicity Distribution in the Milky Way Bulge with APOGEE

A. Rojas-Arriagada, G. Zasowski, M. Schultheis +14

We use data of 13,000 stars from the SDSS/APOGEE survey to study the shape of the bulge MDF within the region and , and spatially constr…

astro-ph.GA2019★ 35 cited

Globular cluster candidates in the Galactic bulge: Gaia and VVV view of the latest discoveries

F. Gran, M. Zoccali, R. Contreras Ramos +7

Thanks to the recent wide-area photometric surveys, the number of star cluster candidates have risen exponentially in the last few years. Most detections, however, are based only o…

astro-ph.SR2018★ 10 cited

VVV-WIT-07: another Boyajian's star or a Mamajek's object?

Roberto K. Saito, Dante Minniti, Valentin D. Ivanov +6

We report the discovery of VVV-WIT-07, an unique and intriguing variable source presenting a sequence of recurrent dips with a likely deep eclipse in July 2012. The object was foun…

astro-ph.GA2018★ 39 cited

The VVV Survey RR Lyrae Population in the Galactic Centre Region

Rodrigo Contreras Ramos, Dante Minniti, Felipe Gran +6

Deep near-IR images from the VVV Survey were used to search for RR Lyrae type ab (RRab) stars within 100' from the Galactic Centre (GC). A sample of 960 RRab stars were discovered.…

astro-ph.GA2018★ 13 cited

The Orbit of the new Milky Way Globular Cluster FSR1716 = VVV-GC05

Rodrigo Contreras Ramos, Dante Minniti, Jose G. Fernandez-Trincado +10

We use deep multi-epoch near-IR images of the VISTA Variables in the Via Lactea (VVV) Survey to measure proper motions (PMs) of stars in the Milky Way globular cluster FSR1716 = VV…

astro-ph.GA2017★ 39 cited

Proper motions in the VVV Survey: Results for more than 15 million stars across NGC 6544

R. Contreras Ramos, M. Zoccali, F. Rojas +8

Context: In the last six years, the VVV survey mapped 562 sq. deg. across the bulge and southern disk of the Galaxy. However, a detailed study of these regions, which includes $\si…

astro-ph.SR2017

Pulsating stars in Centauri: Near-IR properties and period-luminosity relations

Camila Navarrete, Márcio Catelan, Rodrigo Contreras Ramos +4

Centauri (NGC~5139) contains many variable stars of different types, including the pulsating type II Cepheids, RR Lyrae and SX Phoenicis stars. We carried out a deep, wide-fiel…

astro-ph.SR2017★ 17 cited

Near-IR period-luminosity relations for pulsating stars in Centauri (NGC 5139)

C. Navarrete, M. Catelan, R. Contreras Ramos +4

Centauri (NGC 5139) hosts hundreds of pulsating variable stars of different types, thus representing a treasure trove for studies of their corresponding period-luminosity (PL)…

astro-ph.GA2017★ 57 cited

FSR 1716: A new Milky Way Globular Cluster confirmed using VVV RR Lyrae stars

Dante Minniti, Tali Palma, Istvan Dékány +35

We use deep multi-epoch near-IR images of the VISTA Variables in the Vía Láctea (VVV) Survey to search for RR Lyrae stars towards the Southern Galactic plane. Here we report the di…

astro-ph.IM2016★ 46 cited

A machine learned classifier for RR Lyrae in the VVV survey

Felipe Elorrieta, Susana Eyheramendy, Andrés Jordán +10

Variable stars of RR Lyrae type are a prime tool to obtain distances to old stellar populations in the Milky Way, and one of the main aims of the Vista Variables in the Via Lactea…

astro-ph.GA2016★ 48 cited

Discovery of RR Lyrae Stars in the Nuclear Bulge of the Milky Way

D. Minniti, R. Contreras Ramos, M. Zoccali +4

Galactic nuclei, like the one of the Milky Way, are extreme places with high stellar densities and, in most cases, hosting a supermassive black hole. One of the scenarios proposed…

astro-ph.GA2016★ 52 cited

Mapping the outer bulge with RRab stars from the VVV Survey

F. Gran, D. Minniti, R. K. Saito +8

The VISTA Variables in the Vía Láctea (VVV) is a near-IR time-domain survey of the Galactic bulge and southern plane. One of the main goals of this survey is to reveal the 3D struc…