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The VMC survey - XXIII. Model fitting of light and radial velocity curves of Small Magellanic Cloud classical Cepheids
Marcella Marconi, Roberto Molinaro, Vincenzo Ripepi +7
We present the results of the chi2 minimization model fitting technique applied to optical and near-infrared photometric and radial velocity data for a sample of 9 fundamental and…
Gaia Data Release 1 - The Cepheid & RR Lyrae star pipeline and its application to the south ecliptic pole region
G. Clementini, V. Ripepi, S. Leccia +24
We present an overview of the Specific Objects Study (SOS) pipeline developed within the Coordination Unit 7 (CU7) of the Gaia Data Processing and Analysis Consortium (DPAC), the c…
Variable stars and stellar populations in Andromeda XXV: III. A central cluster or the galaxy nucleus?
Felice Cusano, Alessia Garofalo, Gisella Clementini +8
We present B and V time-series photometry of Andromeda XXV, the third galaxy in our program on the Andromeda's satellites, that we have imaged with the Large Binocular Cameras of t…
The Carnegie-Chicago Hubble Program. I. An Independent Approach to the Extragalactic Distance Scale Using only Population II Distance Indicators
Rachael L. Beaton, Wendy L. Freedman, Barry F. Madore +15
We present an overview of the Carnegie-Chicago Hubble Program, an ongoing program to obtain a 3 per cent measurement of the Hubble constant using alternative methods to the traditi…
The VMC Survey. XIX. Classical Cepheids in the Small Magellanic Cloud
V. Ripepi, M. Marconi, M. I. Moretti +7
The VISTA near infrared Y, J, Ks survey of the Magellanic System (VMC) is collecting deep Ks band time series photometry of pulsating variable stars hosted by the two Magellanic Cl…
RR Lyrae stars in the Gaia era
Gisella Clementini
Gaia, the European Space Agency spacecraft successfully launched on 19 December 2013, entered into nominal science operations on 18 July 2014 after a few months of commissioning, a…