Journal ArticleDOI
The luminosity function of the cluster Palomar 1—testing a new technique
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In this article, the luminosity function of the globular cluster Palomar 1 was determined together with its confidence interval by applying an adaptive kernel estimator to data from the Isaac Newton Telescope.Abstract:
The luminosity function of the globular cluster Palomar 1 is determined together with its confidence interval by applying an adaptive kernel estimator to data from the Isaac Newton Telescope. The luminosity function of Palomar 1 has two minima in the V band and one in the I band. The cluster core contains a relatively high fraction of bright stars, indicative of mass segregation.read more
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Journal ArticleDOI
Ruprecht 147: A Paradigm of Dissolving Star Cluster
TL;DR: In this paper, the authors employed recent Gaia/DR2 data to investigate the dynamical status of the nearby (300 pc), old (2.5 Gyr) open cluster Ruprecht~147.
Journal ArticleDOI
Open-cluster density profiles derived using a kernel estimator
TL;DR: In this article, surface and spatial radial density profiles of open clusters were derived using a kernel estimator method, and the selection of an optimal kernel half-width was discussed for the contribution of every star into the spatial density profile.
Journal ArticleDOI
Luminosity and mass function of galactic open clusters I. NGC 4815
L. Prisinzano,Giovanni Carraro,Giampaolo Piotto,Anton F. Seleznev,Peter B. Stetson,Ivo Saviane +5 more
TL;DR: In this paper, deep V and I photometry for the open cluster NGC 4815 and four surrounding Galactic elds down to a limiting magnitude V 25 was used to study cluster spatial extension by means of star counts, and derive the luminosity (LF) and mass function (MF).
Journal ArticleDOI
Ruprecht 147: a paradigm of dissolving star cluster
TL;DR: In this paper, the authors employed recent Gaia/DR2 data to investigate the dynamical status of the nearby (300 pc), old (2.5 Gyr) open cluster Ruprecht~147.
Journal ArticleDOI
Unresolved Binaries and Galactic Clusters’ Mass Estimates
TL;DR: In this article, the effect of unresolved binary stars in the derivation of open clusters' mass by star counts is investigated, and it is shown that cluster masses increase when binary stars are appropriately taken into account.
References
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BookDOI
Density estimation for statistics and data analysis
TL;DR: The Kernel Method for Multivariate Data: Three Important Methods and Density Estimation in Action.
Journal ArticleDOI
Palomar 1: Another Young Galactic Halo Globular Cluster?
TL;DR: A color-magnitude diagram (CMD) and a luminosity function down to Vlim = 23.25 have been constructed in this article, indicating that Pal 1 is located 3.7? 0.4 kpc above the Galactic disc and 17.6 kpc from the Galactic center.
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