Search Results - "Clementini, G"
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Cepheid metallicity in the Leavitt law (C-metall) survey – I. HARPS-N@TNG spectroscopy of 47 classical Cepheids and 1 BL Her variables
Published in Monthly notices of the Royal Astronomical Society (01-12-2021)“…ABSTRACT Classical Cepheids (DCEPs) are the most important primary indicators of the extragalactic distance scale. Establishing the dependence on metallicity…”
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The VMC survey – XXIII. Model fitting of light and radial velocity curves of Small Magellanic Cloud classical Cepheids
Published in Monthly notices of the Royal Astronomical Society (21-04-2017)“…Abstract We present the results of the χ2 minimization model fitting technique applied to optical and near-infrared photometric and radial velocity data for a…”
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NEW NEAR-INFRARED PERIOD–LUMINOSITY–METALLICITY RELATIONS FOR RR LYRAE STARS AND THE OUTLOOK FOR GAIA
Published in The Astrophysical journal (10-07-2015)“…We present results of the analysis of 70 RR Lyrae stars located in the bar of the Large Magellanic Cloud (LMC). Combining the spectroscopically determined…”
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New LZ and PW(Z) relations of RR Lyrae stars calibrated with Gaia EDR3 parallaxes
Published in Monthly notices of the Royal Astronomical Society (26-04-2022)“…ABSTRACT We present new luminosity–metallicity (LZ; $M_{V}\!-\!\rm [Fe/H]$ and $M_{G}\!-\!\rm [Fe/H]$) relations and, for the first time, empirical, Gaia…”
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Chemical abundances of solar neighbourhood RR Lyrae stars
Published in Monthly notices of the Royal Astronomical Society (01-03-2015)“…We have analysed a sample of 18 RR Lyrae stars (17 fundamental-mode -- RRab -- and one first overtone -- RRc) and three Population II Cepheids (two BL Her…”
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STEP survey – II. Structural analysis of 170 star clusters in the SMC
Published in Monthly notices of the Royal Astronomical Society (01-11-2021)“…ABSTRACT We derived surface brightness profiles in the g band for 170 Small Magellanic Cloud (SMC) star clusters (SCs) mainly located in the central region of…”
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The VMC Survey – XLII. Near-infrared period–luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud
Published in Monthly notices of the Royal Astronomical Society (01-06-2021)“…ABSTRACT We present results from an analysis of ∼29 000 RR Lyrae stars located in the Large Magellanic Cloud (LMC). For these objects, near-infrared…”
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The VMC Survey – XIII. Type II Cepheids in the Large Magellanic Cloud
Published in Monthly notices of the Royal Astronomical Society (21-01-2015)“…The VISTA (Visible and Infrared Survey Telescope for Astronomy) survey of the Magellanic Clouds System (VMC) is collecting deep K...-band time-series…”
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The VMC Survey - VIII. First results for anomalous Cepheids
Published in Monthly notices of the Royal Astronomical Society (01-01-2014)“…The VISTA near-infrared YJK s survey of the Magellanic Clouds System (VMC, PI M.-R. L. Cioni) is collecting deep K s-band time-series photometry of the…”
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The VMC survey - V. First results for classical Cepheids
Published in Monthly notices of the Royal Astronomical Society (11-08-2012)“…Abstract The VISTA Magellanic Cloud (VMC; PI: M.-R. L. Cioni) survey is collecting deep K s-band time series photometry of the pulsating variable stars hosted…”
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The VMC survey – XX. Identification of new Cepheids in the Small Magellanic Cloud
Published in Monthly notices of the Royal Astronomical Society (21-06-2016)“…We present K s-band light curves for 299 Cepheids in the Small Magellanic Cloud (SMC) of which 288 are new discoveries that we have identified using…”
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I Zw 18 Revisited with HST ACS and Cepheids: New Distance and Age
Published in The Astrophysical journal (01-10-2007)“…We present new V- and I-band HST ACS photometry of I Zw 18, the most metal-poor blue compact dwarf (BCD) galaxy in the nearby universe. It has been argued in…”
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The VMC Survey - X. Cepheids, RR Lyrae stars and binaries as probes of the Magellanic System's structure
Published in Monthly notices of the Royal Astronomical Society (01-01-2014)“…The VISTA near-infrared Y, J, K s survey of the Magellanic System (VMC) survey is obtaining multi-epoch photometry in the K s band of the Magellanic System…”
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STEP: the VST survey of the SMC and the Magellanic Bridge – I. Overview and first results
Published in Monthly notices of the Royal Astronomical Society (11-08-2014)“…STEP (the SMC in Time: Evolution of a Prototype interacting late-type dwarf galaxy) is a Guaranteed Time Observation survey being performed at the VST (the ESO…”
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Eclipsing binary stars in the Large Magellanic Cloud: results from the EROS-2, OGLE and VMC surveys
Published in Monthly notices of the Royal Astronomical Society (01-09-2014)“…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…”
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Preliminary results for RR Lyrae stars and Classical Cepheids from the Vista Magellanic Cloud (VMC) survey
Published in Astrophysics and space science (01-09-2012)“…The Vista Magellanic Cloud (VMC, PI M.R. Cioni) survey is collecting K S -band time series photometry of the system formed by the two Magellanic Clouds (MC)…”
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Multi-Epoch Hubble Space Telescope Observations of IZw18: Characterization of Variable Stars at Ultra-Low Metallicities
Published in The Astrophysical journal (10-03-2010)“…Variable stars have been identified for the first time in the very metal-poor blue compact dwarf galaxy IZw18, using deep multi-band (F606W, F814W) time-series…”
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Spatial Distribution and Evolution of the Stellar Populations and Candidate Star Clusters in the Blue Compact Dwarf I Zwicky 18
Published in The Astrophysical journal (01-10-2011)“…The evolutionary properties and spatial distribution of I Zwicky 18 (IZw18) stellar populations are analyzed by means of Hubble Space Telescope/Advanced Camera…”
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Ultra long period Cepheids: a primary standard candle out to the Hubble flow
Published in Astrophysics and space science (01-09-2012)“…The cosmological distance ladder crucially depends on classical Cepheids (with P =3–80 days), which are primary distance indicators up to 33 Mpc. Within this…”
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