[PDF] Top 20 Variable stars in the globular cluster M 28 (NGC 6626)
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Variable stars in the globular cluster M 28 (NGC 6626)
... on the variability search conducted with ISIS, we were able to find 25 variable stars with good photometry to reveal clean light ...with the new discoveries is given in ...shown ... See full document
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Variable stars in large magellanic cloud globular clusters II NGC 1786
... of NGC 1786 suggests an Oo-int classification for the cluster, though it is near the division between Oo-int and Oo-II, while the number ratio of first overtone dominant pulsators to ... See full document
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CNO and F abundances in the globular cluster M22 (NGC 6656)
... on the sub-giant branch of M ...few stars and using high-resolution CCD spectra, albeit limited to a spectral resolution of R ∼ 20 000 (see, ...regarding the abundance spread in ... See full document
12
The globular cluster M15 I Identification, discovery, and period determination of variable stars
... output the stellar equilibrium temperature than the pulsation amplitude, given that the latter can only be computed on the basis of complex nonlinear pulsation models, whereas the ... See full document
15
Variable stars in the Quintuplet stellar cluster with the VVV survey
... to the strong reddening present in this ...by the results found in Section 3.2. Hence we decided to utilize the H band to build a reliable ...CMD. The resulting diagram is shown ... See full document
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Variable stars in large magellanic cloud globular clusters I NGC 1466
... through the instability strip (see Figure 5 in Walker 1992); thus it is expected to contain a significant number of RR Lyrae ...Lyrae stars were first found in NGC 1466 by Thackeray ... See full document
14
Variable stars in the fornax dSph galaxy III The globular cluster fornax 5
... reconsidered the HB morphology of For 5 by computing the Lee–Zinn parameter (Zinn 1986; Lee 1990; Lee et ...represent the numbers of blue, red, and variable stars on the HB, ... See full document
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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
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Chemical abundances of giant stars in NGC 5053 and NGC 5634, two globular clusters associated with the Sagittarius dwarf spheroidal galaxy?
... tios in the three studied stars compared with values in di ff erent Sgr dSph populations, other globular clusters, and stars in the Milky Way disk and ...halo. ... See full document
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THE VARIABLE STAR POPULATION OF THE GLOBULAR CLUSTER B514 IN THE ANDROMEDA GALAXY
... make the first tentative detection of RR Lyrae stars in four clusters, namely, G11, G33, G64, and ...identified in each cluster (two, four, eleven, and eight variables, in G11, ... See full document
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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
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Chemical abundance analysis of red giant branch stars in the globular cluster E3
... given the resolution and sampling of our spectra, we expect errors on the measured EWs to be on the order of ∼ 4–11 mÅ, depending on the spectral ...exceeds the corre- sponding ... See full document
8
Variations in the lithium abundances of turn off stars in the globular cluster 47 Tucanae
... by stars of such masses, e.g. masses of 20 M or ...that the massive stars winds are essentially Li free and invoke a dilution of the wind with about 30% of pris- tine gas, in ... See full document
7
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
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Estimating the parameters of globular cluster M 30 (NGC 7099) from time series photometry
... of the light curve amplitude versus the loga- rithm of the period for RR Lyrae stars in M 30, in V (top) and I ...mark the locations of V16 which we suggest is a ff ... See full document
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Variable stars in the fornax dsph galaxy I The globular cluster fornax 4
... Variable stars were independently identified from the CTIO data set, using difference image analysis (Phillips & Davis 1995; Alard & Lupton 1998; Alard ...used the HOTPANTS package ( ... See full document
14
The Globular Cluster NGC 5286 II Variable Stars
... to the Jurcsik–Kov´acs criterion), we see that there is still a wide scatter among the RRab’s in the Bailey diagrams, with no clear-cut tendency for stars to cluster tightly ... See full document
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New variable stars in the globular cluster NGC 5694
... all the evidence for a possible extragalactic origin for NGC 5694, the analysis of this cluster in terms of the Oosterhoff (1939, 1944) argument is potentially relevant (Catelan ... See full document
6
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
6
The Globular Cluster NGC 6402 (M14) II Variable Stars
... for the Galactic globular cluster NGC 6402 (M14). The data con- sists of ∼137 images per filter, obtained using the ...at the Cerro Tololo Inter-American Observatory. ... See full document
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