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The exclusion of a significant range of ages in a massive star cluster
Chengyuan Li, Richard de Grijs, Licai Deng
Stars spend most of their lifetimes on the main sequence in the Hertzsprung--Russell diagram. The extended main-sequence turn-off regions -- containing stars leaving the main seque…
The VMC Survey. XIII. Type II Cepheids in the Large Magellanic Cloud
V. Ripepi, M. I. Moretti, M. Marconi +9
The VISTA survey of the Magellanic Clouds System (VMC) is collecting deep --band time--series photometry of the pulsating variable stars hosted in the system formed b…
How does a low-mass cut-off in the stellar IMF affect the evolution of young star clusters?
M. B. N. Kouwenhoven, S. P. Goodwin, R. de Grijs +2
We investigate how different stellar initial mass functions (IMFs) can affect the mass loss and survival of star clusters. We find that IMFs with radically different low-mass cut-o…
The VMC Survey - XII. Star cluster candidates in the Large Magellanic Cloud
André E. Piatti, Roald Guandalini, Valentin D. Ivanov +8
In this work we analyse Colour-Magnitude Diagrams (CMDs) of catalogued star clusters located in the Large Magellanic Cloud (LMC), from a YJKs photometric data set obtained by the V…
The VMC ESO Public Survey
M. -R. L. Cioni, P. Anders, G. Bagheri +31
The VISTA near-infrared YJKs survey of the Magellanic Clouds system (VMC) has entered its core phase: about 40% of the observations across the Large and Small Magellanic Clouds (LM…
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…
Eclipsing binary stars in the Large Magellanic Cloud. Results from the EROS-2, OGLE and VMC surveys
T. Muraveva, G. Clementini, C. Maceroni +9
We present a catalogue of 1768 eclipsing binary stars (EBs) detected in the Large Magellanic Cloud (LMC) by the second generation of the EROS survey (hereinafter EROS-2); 493 of th…
The VMC Survey. XI. Radial Stellar Population Gradients in the Galactic Globular Cluster 47 Tucanae
Chengyuan Li, Richard de Grijs, Licai Deng +15
We present a deep near-infrared color--magnitude diagram of the Galactic globular cluster 47 Tucanae, obtained with the Visible and Infrared Survey Telescope for Astronomy (VISTA)…
The VVV Templates Project. Towards an Automated Classification of VVV Light-Curves. I. Building a database of stellar variability in the near-infrared
R. Angeloni, R. Contreras Ramos, M. Catelan +50
Context. The Vista Variables in the Vía Láctea (VVV) ESO Public Survey is a variability survey of the Milky Way bulge and an adjacent section of the disk carried out from 2010 on E…
The Nearest High-Velocity Stars Revealed by LAMOST Data Release 1
Jing Zhong, Li Chen, Chao Liu +14
We report the discovery of 28 candidate high-velocity stars (HVSs) at heliocentric distances of less than 3 kpc, based on the Large Sky Area Multi-Object Fiber Spectroscopic Telesc…
Clustering of Local Group distances: publication bias or correlated measurements? II. M31 and beyond
Richard de Grijs, Giuseppe Bono
The accuracy of extragalactic distance measurements ultimately depends on robust, high-precision determinations of the distances to the galaxies in the local volume. Following our…
Clustering of Local Group distances: publication bias or correlated measurements? I. The Large Magellanic Cloud
Richard de Grijs, James E. Wicker, Giuseppe Bono
The distance to the Large Magellanic Cloud (LMC) represents a key local rung of the extragalactic distance ladder. Yet, the galaxy's distance modulus has long been an issue of cont…
Star clusters in M33: updated UBVRI photometry, ages, metallicities, and masses
Zhou Fan, Richard de Grijs
The photometric characterization of M33 star clusters is far from complete. In this paper, we present homogeneous photometry of 708 star clusters and cluster candidates in…