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uvbyβ Photometry of the RR Lyrae Star AT And
... with the theoretical mod- els can be made, it was done through the calibra- tions proposed by Nissen (1988), which are based on the intrinsic color ...indexes. The results of us- ing ... See full document
7
Analysis of Select RR Lyrae Stars in Serpens from uvby$ \beta$ Photoelectric Photometry
... adjustment of the period with only three times of maximum light could be significant, since the elapsed time of 51 years does not phase the data well to the new ob- ... See full document
9
THE VARIABLE STAR POPULATION IN THE GLOBULAR CLUSTER NGC 6934
... 0.362) and log f=[α/Fe] (Salaris et ...account the fact that the true TRGB might be a bit brighter than the brightest observed stars, as argued by Viaux et ...ysis of M5, under ... See full document
22
On the RR Lyrae Stars in Globulars V the Complete Near infrared (JHK s) Census of ω Centauri RR Lyrae Variables
... in the transition between RRc and RRab, as recently suggested by Braga et ...in the Galactic globular M5. Furthermore, it is suggesting that the iron content, in the metallicity range ... See full document
27
HD 115520, a new $ \delta$ Scuti star
... photoelectric photometry of some RR Lyrae stars in Bootes, acquired in 2005 at the Observatorio Astron´omico Nacional, M´exico, we also observed several standard stars, HD115520 ... See full document
8
Properties of RR Lyrae stars in the inner regions of the Large Magellanic Cloud III Near infrared study
... stellar photometry of these sky-subtracted and combined images was carried out using ALLSTAR and ALLFRAME within DAOPHOT II (Stetson ...1994). The calibra- tion of the ... See full document
10
CCD imagery, uvbyβ Photometry, and the Physical Parameters of Haffner 19
... inspection of the uvbyβ photome- try of Table 3 one readily finds that the stars are early (A to early B stars), except for star 39* which is a foreground K star with Hβ ... See full document
19
DISCOVERY OF RR LYRAE STARS IN THE NUCLEAR BULGE OF THE MILKY WAY
... testing the fi rst of these two ...into the potential well, where they merge and form a high-density nuclear bulge with a nuclear star cluster at its ...situ star formation ... See full document
6
TIME SERIES PHOTOMETRY OF GLOBULAR CLUSTERS: M62 (NGC 6266), THE MOST RR LYRAE RICH GLOBULAR CLUSTER IN THE GALAXY?
... magnitudes and colors over the full pulsation cycle belong to M62, we have included a third CMD in Figure ...case, the variable stars were simply identified in the photometry catalog ... See full document
21
RR Lyrae Stars in the Globular Cluster NGC 6101
... Observations of NGC 6101 were taken in the V and I bands by the Faulkes Telescope South over two main seasons: one over August and September 2010 and a further season to help ... See full document
6
Chemical Compositions of Field and Globular Cluster RR Lyrae Stars I NGC 3201
... RRLs and one red horizontal branch ( RHB ) star in the globular cluster NGC 3201, using high-resolution optical spectra collected with M2FS at ...metallicities and abundance ratios [ ... See full document
14
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 ...indicating the ... See full document
8
The Leo IV dwarf spheroidal galaxy: color magnitude diagram and pulsating stars
... IDENTIFICATION OF THE VARIABLE STARS Variable stars were identified using the V and B time-series data ...calculated the Fourier transforms (in the Schwarzenberg-Czerny 1996 ... See full document
5
CCD Photometry of the Globular Cluster M15: RR Lyrae Fourier Decomposition and Physical Parameters
... work of Notni & Oleak (1958), the star has not been included in other photometric stud- ...ies. The star is heavily blended with a fainter star, making difficult a precise ... See full document
13
uvby-&beta Photometry of the RR Lyrae Star AC And
... using the method developed by Breger (PE- RIOD, 1991) that can fit and improve the multi- ple frequencies simultaneously without prewhitening and results in best values for the ... See full document
24
FOURIER DECOMPOSITION OF RR LYRAE LIGHT CURVES AND THE SX PHE POPULATION IN THE CENTRAL REGION OF NGC 3201
... 1916 at the Boyden Station of Har- vard Observatory near Arequipa, ...(2- and 4-hour) plates also at ...announced the discovery of 25 more variables, V62– V86, on 60 new ... See full document
16
CCD Photometry of the RR LYRAE Stars in NGC 4147
... Times of maximum light in V6 observed in 2003 are modulated by the Blazhko ...effect. The solid curve has a periodicity of 67.9 days. In the top pannel the time axis is ... See full document
13
The Globular Cluster NGC 6402 (M14) II Variable Stars
... I photometry for the Galactic globular cluster NGC 6402 (M14). The data con- sists of ∼137 images per filter, obtained using the ...0.9m and 1.0m SMARTS telescopes at ... See full document
19
The Horizontal Branch of NGC 1851: Constraints from its RR Lyrae Variables
... V, and I passbands, 30 of which are RR Lyrae ...variables and Downes et al. (2004) reported eleven variables, all within 40 of the cluster ...by the 2011 update ... See full document
10
Unmixing the Galactic halo with RR Lyrae tagging
... panel of Fig. 8 presents the average progenitor stellar mass as a function of Galactocentric radius in the six simu- lated haloes whose accretion histories are displayed in the middle ... See full document
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