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Key,Item Type,Publication Year,Author,Title,Publication Title,ISBN,ISSN,DOI,Url,Abstract Note,Date,Date Added,Date Modified,Access Date,Pages,Num Pages,Issue,Volume,Number Of Volumes,Journal Abbreviation,Short Title,Series,Series Number,Series Text,Series Title,Publisher,Place,Language,Rights,Type,Archive,Archive Location,Library Catalog,Call Number,Extra,Notes
4XADYGG5,journalArticle,2017,"Piatti, Andrés E.",On the physical reality of overlooked open clusters,Monthly Notices of the Royal Astronomical Society,,0035-8711,10.1093/mnras/stx081,http://adsabs.harvard.edu/abs/2017MNRAS.466.4960P,"We present UBVRI and CT1T2 photometry for 15 catalogued open clusters of relative high brightness and compact appearance. From these unprecedented photometric data sets, covering wavelengths from the blue up to the near-infrared, we performed a thorough assessment of their reality as stellar aggregates. We statistically assigned to each observed star within the object region a probability of being a fiducial feature of that field in terms of its local luminosity function, colour distribution and stellar density. Likewise, we used accurate parallaxes and proper motions measured by the Gaia satellite to help our decision on the open cluster reality. 10 catalogued aggregates did not show any hint of being real physical systems; three of them had been assumed to be open clusters in previous studies, though. On the other hand, we estimated reliable fundamental parameters for the remaining five studied objects, which were confirmed as real open clusters. They resulted to be clusters distributed in a wide age range, 8.0 ≤ log (t yr-1) ≤ 9.4, of solar metal content and placed between 2.0 and 5.5 kpc from the Sun. Their ages and metallicities are in agreement with the presently known picture of the spatial distribution of open clusters in the Galactic disc.",2017-04-01,2017-07-06 13:49:11,2017-07-06 13:49:40,2017-07-06 13:49:11,4960-4973,,,466,,Monthly Notices of the Royal Astronomical Society,,,,,,,,,,,,,NASA ADS,,3,
78HBV6DH,journalArticle,2017,"Carrera, R.; Rodríguez Espinosa, L.; Casamiquela, L.; Balaguer Nuñez, L.; Jordi, C.; Allende Prieto, C.; Stetson, P. B.",The open cluster King~1 in the second quadrant,ArXiv e-prints,,,,http://adsabs.harvard.edu/abs/2017arXiv170604863C,"We analyse the poorly-studied open cluster King~1 in the second Galactic quadrant. From wide-field photometry we have studied the spatial distribution of this cluster. We determined that the centre of King~1 is located at $\alpha_{2000}=00^{\rm h}22^{\rm m}$ and $\delta_{2000}=+64\degr23\arcmin$. By parameterizing the stellar density with a King profile we have obtained a central density of $\rho_{0}=6.5\pm0.2$ star arcmin$^{-2}$ and a core radius of $r_{\rm core}=1\farcm9\pm0\farcm2$. By comparing the observed color-magnitude diagram of King~1 with those of similar open clusters and with different sets of isochrones, we have estimated an age of $2.8\pm0.3$ Gyr, a distance modulus of $(m-M)_{\rm o}=10.6\pm0.1$ mag, and a reddening of $E(B-V)=0.80\pm0.05$ mag. To complete our analysis we acquired medium resolution spectra for 189 stars in the area of King~1. From their derived radial velocities we determined an average velocity $\left\langle V_r\right\rangle $=-53.1$\pm$3.1 km s$^{-1}$. From the strength of the infrared \mbox{Ca\,{\sc ii}} lines in red giants we have determined an average metallicity of $\left\langle [M/H]\right\rangle$=+0.07$\pm$0.08 dex. From spectral synthesis we have also estimated an $\alpha$-elements abundance of $\left\langle [\alpha/M]\right\rangle$=-0.10$\pm$0.08 dex.",2017-06-01,2017-06-16 12:01:00,2017-06-16 14:53:08,2017-06-16 12:01:00,arXiv:1706.04863,,,1706,,ArXiv e-prints,,,,,,,,,,,,,NASA ADS,,2,