- National Institute for AstrophysicsIT2.7k papers
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78 papers · 2 filters
A study of the blue straggler population of the old open cluster Collinder 261
M. J. Rain, G. Carraro, J. A. Ahumada +4
Blue Stragglers are stars located in an unexpected region of the color-magnitude diagram of a stellar population, as they appear bluer and more luminous than the stars in the turno…
Detection and characterisation of oscillating red giants: first results from the TESS satellite
Víctor Silva Aguirre, Dennis Stello, Amalie Stokholm +78
Since the onset of the `space revolution' of high-precision high-cadence photometry, asteroseismology has been demonstrated as a powerful tool for informing Galactic archaeology in…
The Gaia-ESO Survey: Carbon abundance in the Galactic thin and thick disks
Mariagrazia Franchini, Carlo Morossi, Paolo Di Marcantonio +24
This paper focuses on carbon that is one of the most abundant elements in the Universe and is of high importance in the field of nucleosynthesis and galactic and stellar evolution.…
Stellar population astrophysics (SPA) with the TNG. Revisiting the metallicity of Praesepe (M44)
Valentina D'Orazi, Ernesto Oliva, Angela Bragaglia +8
Open clusters exquisitely track the Galactic disc chemical properties and its time evolution; a substantial number of studies and large spectroscopic surveys focus mostly on the ch…
The GALAH Survey: Temporal Chemical Enrichment of the Galactic Disk
Jane Lin, Martin Asplund, Yuan-Sen Ting +22
We present isochrone ages and initial bulk metallicities (, by accounting for diffusion) of 163,722 stars from the GALAH Data Release 2, mainly composed of main…
What is a globular cluster? An observational perspective
Raffaele Gratton, Angela Bragaglia, Eugenio Carretta +3
Globular clusters are large and dense agglomerate of stars. At variance with smaller clusters of stars, they exhibit signs of some chemical evolution. At least for this reason, the…