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43 papers · 2 filters
A Census of Thermally-Pulsing AGB stars in the Andromeda Galaxy and a First Estimate of their Contribution to the Global Dust Budget
Steven R. Goldman, Martha L. Boyer, Julianne Dalcanton +5
We present a near-complete catalog of the metal-rich population of Thermally-Pulsing Asymptotic Giant Branch stars in the northwest quadrant of M31. This metal-rich sample compleme…
Optical and near-infrared spectroscopy of Nova V2891 Cygni: evidence for shock-induced dust formation
Vipin Kumar, Mudit K. Srivastava, Dipankar P. K. Banerjee +6
We present multi-epoch optical and near-infrared observations of the highly reddened, \pion{Fe}{ii} class slow nova V2891 Cygni. The observations span 15 months since its discovery…
The Gaia-ESO Survey: Target selection of open cluster stars
A. Bragaglia, E. Alfaro, E. Flaccomio +36
The Gaia-ESO Survey (GES) is a public, high-resolution spectroscopic survey with FLAMES@VLT. GES targeted in particular a large sample of open clusters (OCs) of all ages. The diffe…
Measuring the F-corona intensity through time correlation of total and polarized visible light images
A. Burtovoi, G. Naletto, S. Dolei +4
We present a new correlation method for deriving the F-corona intensity distribution, which is based on the analysis of the evolution of the total and polarized visible light (VL)…
Gyrochronological dating of the stellar moving group Group X
S. Messina, D. Nardiello, S. Desidera +4
Gyrochronology is one of the methods currently used to estimate the age of stellar open clusters. Hundreds of new clusters, associations, and moving groups unveiled by Gaia and com…
Lithium abundances as a tracer of AGB stars pollution in the globular cluster NGC 6752
J. Schiappacasse-Ulloa, S. Lucatello, M. J. Rain +1
This paper presents the chemical abundance analysis of 217 stars in the metal-poor globular cluster NGC 6752, distributed from the turn-off to the lower red giant branch. Aluminium…