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PSR J1641+3627F: a low-mass He white dwarf orbiting a possible high-mass neutron star in the globular cluster M13
Mario Cadelano, Jianxing Chen, Cristina Pallanca +5
We report on the discovery of the companion star to the millisecond pulsar J1631+3627F in the globular cluster M13. By means of a combination of optical and near-UV high-resolution…
Radial variation of the stellar mass functions in the globular clusters M15 and M30: clues of a non-standard IMF?
Mario Cadelano, Emanuele Dalessandro, Jeremy J. Webb +5
We exploit a combination of high-resolution Hubble Space Telescope and wide-field ESO-VLT observations to study the slope of the global mass function (alphaG) and its radial variat…
A kinematic view of NGC 1261: structural parameters, internal dispersion, absolute proper motion and Blue Straggler Stars
S. Raso, M. Libralato, A. Bellini +8
We constructed a Hubble Space Telescope (HST) astro-photometric catalog of the central region of the Galactic globular cluster NGC 1261. This catalog, complemented with Gaia DR2 da…
Digging for relics of the past: the ancient and obscured bulge globular cluster NGC6256
Mario Cadelano, Sara Saracino, Emanuele Dalessandro +5
We used a set of moderately-deep and high-resolution optical observations obtained with the Hubble Space Telescope to investigate the properties of the stellar population in the he…