[PDF] Top 20 VARIABLE STARS IN THE GLOBULAR CLUSTER NGC 2808
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VARIABLE STARS IN THE GLOBULAR CLUSTER NGC 2808
... From the CADC we also downloaded all available images of our field from the Digitized Sky Survey; in the case of NGC 2808, scans of five plates were available: one IIIaJ+GG395 (∼ ... See full document
15
The globular cluster M15 I Identification, discovery, and period determination of variable stars
... discussed in Catelan (2004), who points out that neither of these features is predicted by canonical stellar evolution/pulsation ...theory. In particular, such peaked distributions appear especially ... See full document
15
On the Chemical Abundances of Miras in Clusters: V1 in the Metal rich Globular NGC 5927
... role in this context, since their parent population covers a broad range in stellar ages: from a few hundred Myr up to the age of globular clusters ( GCs ) ...present in ... See full document
7
Chemical abundances of giant stars in NGC 5053 and NGC 5634, two globular clusters associated with the Sagittarius dwarf spheroidal galaxy?
... synthesized in nuclear statistical equilibrium, together with iron-peak elements. The odd light element Al is only detected in star NGC 5634-3 and it is strongly enhanced over iron ...on ... See full document
12
CNO and F abundances in the globular cluster M22 (NGC 6656)
... study the sample, our observing programme was executed at two di ff erent filters, H6420 and K4308, which cover a wavelength range from 1552 to 1558 nm (H band) and from 2330 to 2340 nm (K ...along the slit ... See full document
12
NGC 6558: A blue horizontal branch moderately metal poor globular cluster in the bulge
... reddened stars for a careful ...is the ‘‘sky concentration.’’ This makes the calibration dependent on the position of the standards on the chip, which is difficult to ...correct. ... See full document
13
A spectroscopic study of the globular Cluster NGC 4147
... for the iron-peak elements Cr and Ni are listed in Table 2. The value is subsolar for Cr, while Ni is basically ...as the following plots) shows the mean (black filled circle) and star ... See full document
9
High precision astrometry with VVV I An independent reduction pipeline for VIRCAM@VISTA
... for the VIRCAM@VISTA detector and describe the method developed to obtain high-precision astrometry with the VISTA Variables in the V´ıa L´actea (VVV) data ...field the ... See full document
11
Globular cluster systems in fossil groups: NGC 6482, NGC 1132, and ESO 306 017
... among the oldest objects in the universe, and dense enough to survive galactic ...assembly. The correlation of the optical luminosity of a galaxy with the mean metallicities of ... See full document
14
THE VARIABLE STAR POPULATION OF THE GLOBULAR CLUSTER B514 IN THE ANDROMEDA GALAXY
... RRab stars and 7 RRc stars in the GC B514 of the Andromeda ...galaxy. The average period of the B514 RRab stars for which we have complete and reliable light curves ... See full document
5
TIME SERIES PHOTOMETRY OF GLOBULAR CLUSTERS: M62 (NGC 6266), THE MOST RR LYRAE RICH GLOBULAR CLUSTER IN THE GALAXY?
... those variable stars for which we were not able to obtain average magnitudes and colors over the full pulsation cycle belong to M62, we have included a third CMD in Figure ...5. In this ... See full document
21
Constraints on Helium Enhancement in the Globular Cluster M3 (Ngc 5272): The Horizontal Branch Test
... to the next ...to the deep CMD analysis of NGC 2808 by Piotto et ...present in this cluster. Strong arguments have also been raised in favor of helium enhancements among ... See full document
6
Neutrino and axion bounds from the globular cluster M5 (NGC 5904)
... within the uncertainties. Still, it is noteworthy that the WD luminosity function and period decrease of ZZ Ceti stars also mildly point to extra ...fluctuated in the opposite direc- ... See full document
5
The Gaia ESO Survey: pre main sequence stars in the young open cluster NGC 3293
... open cluster NGC3293 is included in the observing program of the Gaia-ESO sur- vey ...(GES). The radial velocity values provided have been used to assign cluster membership ... See full document
11
Variations in the lithium abundances of turn off stars in the globular cluster 47 Tucanae
... variance, the GC NGC 6752, which is about a factor of 4 more metal-rich than NGC 6397, displays a strong variation (up to ...dex) in Li abundances among TO stars (Pasquini et ...with ... See full document
7
A low surface brightness halo surrounding the globular cluster NGC 5694
... adopting the same procedure used and described in detail by Federici et ...obtained the surface density profile from star counts on concentric annuli (before the subtraction of the ... See full document
6
Variable stars in large magellanic cloud globular clusters II NGC 1786
... is the second in a series of papers studying the variable stars in Large Magellanic Cloud globular ...clusters. The primary goal of this series is to study how RR ... See full document
11
Variable stars in the globular cluster M 28 (NGC 6626)
... by the Ministry for the Economy, Development, and Tourism’s Programa Inicativa Científica Milenio through grant P07-021-F, awarded to The Milky Way Millennium Nucleus; by Proyecto Basal PFB-06 / ... See full document
8
Chemical Compositions of Field and Globular Cluster RR Lyrae Stars I NGC 3201
... to the same solar abundances ( Asplund et al. 2009 ) . We selected the stars in common among the different spectroscopic samples to estimate the standard deviation in iron ... See full document
14
RR Lyrae Stars in the Globular Cluster NGC 6101
... red variable (SARV) or eclipsing binary as well as updating the periods and reclassifying two RR Lyrae ...of the reddening and extinction towards this cluster together with a new estimate of ... See full document
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