Search Results - "Massari, D"
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THE AGE OF THE YOUNG BULGE-LIKE POPULATION IN THE STELLAR SYSTEM TERZAN 5: LINKING THE GALACTIC BULGE TO THE HIGH-Z UNIVERSE
Published in The Astrophysical journal (10-09-2016)“…ABSTRACT The Galactic bulge is dominated by an old, metal-rich stellar population. The possible presence and the amount of a young (a few gigayears old) minor…”
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Multiple populations in globular clusters and their parent galaxies
Published in Monthly notices of the Royal Astronomical Society (01-01-2020)“…ABSTRACT The ‘chromosome map’ diagram (ChM) proved a successful tool to identify and characterize multiple populations (MPs) in 59 Galactic globular clusters…”
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HUBBLE SPACE TELESCOPE PROPER MOTION (HSTPROMO) CATALOGS OF GALACTIC GLOBULAR CLUSTERS. I. SAMPLE SELECTION, DATA REDUCTION, AND NGC 7078 RESULTS
Published in The Astrophysical journal (20-12-2014)“…We present the first study of high-precision internal proper motions (PMs) in a large sample of globular clusters, based on Hubble Space Telescope (HST) data…”
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CECI N'EST PAS A GLOBULAR CLUSTER: THE METALLICITY DISTRIBUTION OF THE STELLAR SYSTEM TERZAN 5
Published in The Astrophysical journal (01-11-2014)“…We present new determinations of the iron abundance for 220 stars belonging to the stellar system Terzan 5 in the Galactic bulge. The spectra have been…”
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The Unexpected Kinematics of Multiple Populations in NGC 6362: Do Binaries Play a Role?
Published in The Astrophysical journal (01-09-2018)“…Abstract We present a detailed analysis of the kinematic properties of the multiple populations (MPs) in the low-mass Galactic globular cluster (GC) NGC 6362…”
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M13 multiple stellar populations seen with the eyes of Strömgren photometry
Published in Monthly notices of the Royal Astronomical Society (01-03-2018)Get full text
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CHEMICAL ANALYSIS OF ASYMPTOTIC GIANT BRANCH STARS IN M62
Published in The Astrophysical journal (10-11-2015)“…We have collected UVES-FLAMES high-resolution spectra for a sample of 6 asymptotic giant branch (AGB) and 13 red giant branch (RGB) stars in the Galactic…”
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NO EVIDENCE OF MASS SEGREGATION IN THE LOW-MASS GALACTIC GLOBULAR CLUSTER NGC 6101
Published in The Astrophysical journal (01-09-2015)“…We used a combination of Hubble Space Telescope and ground-based data to probe the dynamical state of the low-mass Galactic globular cluster NGC 6101. We have…”
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Digging for Relics of the Past: The Ancient and Obscured Bulge Globular Cluster NGC 6256
Published in The Astrophysical journal (01-05-2020)“…We used a set of moderately deep and high-resolution optical observations obtained with the Hubble Space Telescope to investigate the properties of the stellar…”
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Variable Stars in Terzan 5: Additional Evidence of Multi-age and Multi-iron Stellar Populations
Published in The Astrophysical journal (20-01-2019)“…Abstract Terzan 5 is a complex stellar system in the Galactic bulge, harboring stellar populations (SPs) with very different iron content (Δ[Fe/H] ∼ 1 dex) and…”
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Three-dimensional motions in the Sculptor dwarf galaxy as a glimpse of a new era
Published in Nature astronomy (01-02-2018)“…The three-dimensional motions of stars in small galaxies beyond our own are minute, yet they are crucial for understanding the nature of gravity and dark…”
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Blue Stragglers as Tracers of the Dynamical State of Two Clusters in the Small Magellanic Cloud: NGC 339 and NGC 419
Published in The Astrophysical journal (01-03-2022)“…Abstract The level of central segregation of Blue Straggler stars has proved to be an excellent tracer of the dynamical evolution of old star clusters (the…”
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THE VELOCITY DISPERSION PROFILE OF NGC 6388 FROM RESOLVED-STAR SPECTROSCOPY: NO EVIDENCE OF A CENTRAL CUSP AND NEW CONSTRAINTS ON THE BLACK HOLE MASS
Published in The Astrophysical journal (01-06-2013)“…By combining high spatial resolution and wide-field spectroscopy performed, respectively, with SINFONI and FLAMES at the ESO/VLT we measured the radial…”
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HUBBLE SPACE TELESCOPE ABSOLUTE PROPER MOTIONS OF NGC 6681 (M70) AND THE SAGITTARIUS DWARF SPHEROIDAL GALAXY
Published in The Astrophysical journal (10-12-2013)“…We have measured absolute proper motions for the three populations intercepted in the direction of the Galactic globular cluster NGC 6681: the cluster itself,…”
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Proper Motions and Structural Parameters of the Galactic Globular Cluster M71
Published in The Astrophysical journal (20-02-2017)“…Abstract By exploiting two ACS/ HST data sets separated by a temporal baseline of ∼7 years, we have determined the relative stellar proper motions (PMs;…”
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DOUBLE BLUE STRAGGLER SEQUENCES IN GLOBULAR CLUSTERS: THE CASE OF NGC 362
Published in The Astrophysical journal (01-12-2013)“…We used high-quality images acquired with the Wide Field Camera 3 on board the Hubble Space Telescope to probe the blue straggler star (BSS) population of the…”
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PROPER MOTIONS IN TERZAN 5: MEMBERSHIP OF THE MULTI-IRON SUBPOPULATIONS AND FIRST CONSTRAINT ON THE ORBIT
Published in The Astrophysical journal (01-09-2015)“…By exploiting two sets of high-resolution images obtained with the Hubble Space Telescope Advanced Camera for Surveys/Wide Field Channel over a baseline of ~…”
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Pushing point-spread function reconstruction to the next level: application to SPHERE/ZIMPOL
Published in Monthly notices of the Royal Astronomical Society (01-05-2020)“…ABSTRACT Point-spread function (PSF) reconstruction (PSF-R) is a well-established technique to determine the PSF reliably and accurately from adaptive optics…”
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A relic from a past merger event in the Large Magellanic Cloud
Published in Nature astronomy (01-12-2021)“…According to the standard cosmological scenario, the large galaxies that we observe today have reached their current mass via mergers with smaller galaxy…”
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GEMINI/GeMS OBSERVATIONS UNVEIL THE STRUCTURE OF THE HEAVILY OBSCURED GLOBULAR CLUSTER LILLER 1
Published in The Astrophysical journal (20-06-2015)“…By exploiting the exceptional high-resolution capabilities of the near-IR camera GSAOI combined with the Gemini Multi-Conjugate Adaptive System at the GEMINI…”
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