1k citations · 1.8k across the 25 of their papers we have counts for
24 papers
The VVV near-IR galaxy catalogue in a Northern part of the Galactic disc
I. V. Daza-Perilla, M. A. Sgró, L. D. Baravalle +9
The automated identification of extragalactic objects in large surveys provides reliable and reproducible samples of galaxies in less time than procedures involving human interacti…
Blanco DECam Bulge Survey (BDBS) IV: Metallicity Distributions and Bulge Structure from 2.6 Million Red Clump Stars
Christian I. Johnson, R. Michael Rich, Iulia T. Simion +12
We present photometric metallicity measurements for a sample of 2.6 million bulge red clump stars extracted from the Blanco DECam Bulge Survey (BDBS). Similar to previous studies,…
Galaxy clustering in the VVV Near-IR Galaxy Catalogue
Mario Soto, Mario A. Sgró, Laura D. Baravalle +7
Mapping galaxies at low Galactic latitudes and determining their clustering status are fundamental steps in defining the large-scale structure in the nearby Universe. The VVV Near-…
Chemical Tagging N-rich Field Stars with High-resolution Spectroscopy
Jincheng Yu, Baitian Tang, J. G. Fernandez-Trincado +3
We measure chemical abundances for over 20 elements of 15 N-rich field stars with high resolution () optical spectra. We find that Na, Mg, Al, Si, and Ca abundances o…
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 VVV Near-IR Galaxy Catalogue beyond the Galactic disk
Laura D. Baravalle, M. Victoria Alonso, Dante Minniti +7
Knowledge about the large-scale distribution of galaxies is far from complete in the Zone of Avoidance, which is mostly due to high interstellar extinction and to source confusion…
The Blanco DECam Bulge Survey. I. The Survey Description and Early Results
R. Michael Rich, Christian I. Johnson, Michael Young +18
The Blanco Dark Energy Camera (DECam) Bulge survey is a Vera Rubin Observatory (LSST) pathfinder imaging survey, spanning sq. deg. of the Southern Galactic bulge, $-2^\c…
A Color-Excess Extinction map of the Southern Galactic disk from the VVV and GLIMPSE Surveys
M. Soto, R. Barbá, D. Minniti +24
An improved high-resolution and deep A foreground dust extinction map is presented for the Galactic disk area within , $-1.0^{\c…
The Tale of the Milky Way Globular Cluster NGC 6362 -- I. The Orbit and its possible extended star debris features as revealed by Gaia DR2
Richa Kundu, José G. Fernández-Trincado, Dante Minniti +5
We report the identification of possible extended star debris candidates beyond the cluster tidal radius of NGC 6362 based on the second {\it Gaia} data release ({\it Gaia} DR2). W…
The First Galaxy Cluster Discovered by the VISTA Variables in the Vía Láctea Survey
L. D. Baravalle, J. L. Nilo Castellón, M. V. Alonso +12
We report the first confirmed detection of the galaxy cluster VVV-J144321-611754 at very low latitudes (l = 315.836, b = -1.650) located in the tile d015 of the…
The central velocity dispersion of the Milky Way bulge
E. Valenti, M. Zoccali, A. Mucciarelli +9
Recent spectroscopic and photometric surveys are providing a comprehensive view of the MW bulge stellar population properties with unprecedented accuracy. This in turn allows us to…
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…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. VIII. Preliminary Public Catalog Release
M. Soto, A. Bellini, J. Anderson +14
The Hubble Space Telescope (HST) UV Legacy Survey of Galactic Globular Clusters (GO-13297) has been specifically designed to complement the existing F606W and F814W observations of…
Hundreds of new cluster candidates in the VISTA variables in the Via Lactea survey DR1
R. H. Barba, A. Roman-Lopes, J. L. Nilo Castellon +7
VISTA variables in the Via Lactea is an ESO Public survey dedicated to scan the bulge and an adjacent portion of the Galactic disk in the fourth quadrant using the VISTA telescope…
UV Insights into the Complex Populations of M 87 Globular Clusters
A. Bellini, A. Renzini, J. Anderson +7
We have imaged with HST's WFC3/UVIS the central 2.72.7 arcmin region of the giant elliptical galaxy M 87, using the ultraviolet filter F275W. In combination with archiv…
VISTA Variables in the Vía Láctea (VVV): Halfway Status and Results
Maren Hempel, Dante Minniti, István Dékány +89
The VISTA Variables in the Vía Láctea (VVV) survey is one of six public ESO surveys, and is now in its 4th year of observing. Although far from being complete, the VVV survey has a…
Proper motions for HST observations in three off-axis bulge fields
Mario Soto, Hugo Zeballos, Konrad Kuijken +3
Aims. This is the second in a series of papers that attempt to unveil the kinematic structure of the Galactic bulge through studying radial velocities and proper motions. We report…
Local Group and Star Cluster Dynamics from HSTPROMO (The Hubble Space Telescope Proper Motion Collaboration)
Roeland P. van der Marel, Jay Anderson, Andrea Bellini +17
The Hubble Space Telescope (HST) has proven to be uniquely suited for the measurement of proper motions (PMs) of stars and galaxies in the nearby Universe. Here we summarize the ma…
Milky Way Demographics with the VVV Survey II. Color Transformations and Near-Infrared Photometry for 136 Million Stars in the Southern Galactic Disk
M. Soto, R. Barba, G. Gunthardt +18
The new multi-epoch near-infrared VVV survey (VISTA Variables in the Via Lactea) is sampling 562 sq. deg of the Galactic bulge and adjacent regions of the disk. Accurate astrometry…
Anchors for the Cosmic Distance Scale: the Cepheid QZ Normae in the Open Cluster NGC 6067
D. Majaess, L. Sturch, C. Moni Bidin +13
Cepheids are key to establishing the cosmic distance scale. Therefore it's important to assess the viability of QZ Nor, V340 Nor, and GU Nor as calibrators for Leavitt's law via th…
Southern near-infrared photometric monitoring of Galactic young star clusters (NIP of Stars)
R. Barbá, N. Morrell, G. Gunthardt +8
We have performed a near-infrared photometric monitoring of 39 galactic young star clusters and star-forming regions, known as {\em NIP of Stars}, between the years 2009--2011, usi…
Strengthening the Open Cluster Distance Scale via VVV Photometry
Daniel J. Majaess, David G. Turner, C. Moni Bidin +14
Approximately 14% of known Galactic open clusters possess absolute errors 20% as evaluated from n>3 independent distance estimates, and the statistics for age estimates are markedl…
VVV DR1: The First Data Release of the Milky Way Bulge and Southern Plane from the Near-Infrared ESO Public Survey VISTA Variables in the Via Lactea
R. K. Saito, M. Hempel, D. Minniti +107
The ESO Public Survey VISTA Variables in the Via Lactea (VVV) started in 2010. VVV targets 562 sq. deg in the Galactic bulge and an adjacent plane region and is expected to run for…
VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way
D. Minniti, P. W. Lucas, J. P. Emerson +63
We describe the public ESO near-IR variability survey (VVV) scanning the Milky Way bulge and an adjacent section of the mid-plane where star formation activity is high. The survey…