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The M4 Core Project with HST --- I. Overview and First-Epoch
L. R. Bedin, J. Anderson, D. C. Heggie +14
We present an overview of the ongoing Hubble Space Telescope large program GO-12911. The program is focused on the core of M4, the nearest Galactic globular cluster, and the observ…
Atmospheric Parameters and Metallicities for 2191 stars in the Globular Cluster M4
Luca Malavolta, Christopher Sneden, Giampaolo Piotto +3
We report new metallicities for stars of Galactic globular cluster M4 using the largest number of stars ever observed at high spectral resolution in any cluster. We analyzed 7250 s…
An Earth-sized planet with an Earth-like density
Francesco Pepe, Andrew Collier Cameron, David W. Latham +31
Kepler-78 (KIC 8435766) was identified by Sanchis-Ojeda et al. (2013) as harbouring a transiting planet of 1.16 times the size of the Earth and an orbital period of only 8.5 hours.…
The GAPS programme with HARPS-N at TNG. I: Observations of the Rossiter-McLaughlin effect and characterisation of the transiting system Qatar-1
E. Covino, M. Esposito, M. Barbieri +67
A long-term multi-purpose observational programme has started with HARPS-N@TNG aimed to characterise the global architectural properties of exoplanetary systems. In this first pape…
The GAPS Programme with HARPS-N@TNG II: No giant planets around the metal-poor star HIP 11952
S. Desidera, A. Sozzetti, A. S. Bonomo +37
In the context of the program Global Architecture of Planetary Systems (GAPS), we have performed radial velocity monitoring of the metal-poor star HIP 11952 on 35 nights over about…