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- Centre National de la Recherche ScientifiqueFR463 papers
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63 papers · 1 filter
Sodium-Oxygen anticorrelation among Horizontal Branch Stars in the Globular Cluster M4
A. F Marino, S. Villanova, A. P. Milone +4
The horizontal branch (HB) morphology of globular clusters (GC) is mainly governed by metallicity. The second parameter problem, well known since the 60's, states that metallicity…
Discovery of VVV CL001. A Low-Mass Globular Cluster Next to UKS~1 in the Direction of the Galactic Bulge
D. Minniti, M. Hempel, I. Toledo +15
Context: It is not known how many globular clusters may have been left undetected towards the Galactic bulge. Aims: One of the aims of the VISTA Variables in the Via Lactea (VVV) S…
The OGLE View of Microlensing towards the Magellanic Clouds. III. Ruling out sub-solar MACHOs with the OGLE-III LMC data
L. Wyrzykowski, S. Kozlowski, J. Skowron +8
In the third part of the series presenting the Optical Gravitational Lensing Experiment (OGLE) microlensing studies of the dark matter halo compact objects (MACHOs) we describe res…
High Resolution HDS/SUBARU chemical abundances of the young stellar cluster Palomar 1
L. Monaco, I. Saviane, M. Correnti +2
Context. Palomar\,1 is a peculiar globular cluster (GC). It is the youngest Galactic GC and it has been tentatively associated to several of the substructures recently discovered i…
First Season QUIET Observations: Measurements of CMB Polarization Power Spectra at 43 GHz in the Multipole Range 25 <= ell <= 475
QUIET Collaboration, C. Bischoff, A. Brizius +48
The Q/U Imaging ExperimenT (QUIET) employs coherent receivers at 43GHz and 95GHz, operating on the Chajnantor plateau in the Atacama Desert in Chile, to measure the anisotropy in t…
Accurate dynamical mass determination of a classical Cepheid in an eclipsing binary system
G. Pietrzynski, I. B. Thompson, W. Gieren +5
Stellar pulsation theory provides a means of determining the masses of pulsating classical Cepheid supergiant - it is the pulsation that causes their luminosity to vary. Such pulsa…