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TASTE. III. A homogeneous study of transit time variations in WASP-3b
V. Nascimbeni, A. Cunial, S. Murabito +10
The TASTE project is searching for low-mass planets with the Transit Timing Variation (TTV) technique, by gathering high-precision, short-cadence light curves for a selected sample…
No surviving evolved companions to the progenitor of supernova SN 1006
Jonay I. Gonzalez Hernandez, Pilar Ruiz-Lapuente, Hugo M. Tabernero +4
Type Ia supernovae are thought to occur as a white dwarf made of carbon and oxygen accretes sufficient mass to trigger a thermonuclear explosion. The accretion could occur sl…
Hubble Space Telescope reveals multiple Sub-Giant Branch in eight Globular Clusters
G. Piotto, A. P. Milone, J. Anderson +6
In the last few years many globular clusters (GCs) have revealed complex color-magnitude diagrams, with the presence of multiple main sequences (MSs), broaden or multiple sub-giant…
Search for giant planets in M67 I. Overview
L. Pasquini, A. Brucalassi, M. T. Ruiz +7
Precise stellar radial velocities are used to search for massive (Jupiter masses or higher) exoplanets around the stars of the open cluster M67. We aim to obtain a census of massiv…
The infrared eye of the Wide-Field Camera 3 on the Hubble Space Telescope reveals multiple main sequences of very low-mass stars in NGC 2808
A. P. Milone, A. F. Marino, S. Cassisi +9
We use images taken with the infrared channel of the Wide Field Camera 3 on the Hubble Space Telescope (HST) to study the multiple main sequences (MSs) of NGC 2808. Below the turn…
Hubble Space Telescope Observations of an Outer Field in Omega Centauri: A Definitive Helium Abundance
I. R. King, L. R. Bedin, S. Cassisi +6
We revisit the problem of the split main sequence (MS) of the globular cluster omega Centauri, and report the results of two-epoch Hubble Space Telescope observations of an outer f…