[PDF] Top 20 Physical parameters of seven field RR Lyrae Stars in bootes
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Physical parameters of seven field RR Lyrae Stars in bootes
... sources of uncertainty in ∆S, we have to note that the transformation of this ob- servational parameter into [Fe/H] encounters serious problems: the high dispersion abundance determina- tions ... See full document
13
CCD Photometry of the Globular Cluster M15: RR Lyrae Fourier Decomposition and Physical Parameters
... collections of light curves of RR Lyrae stars in M15 can be found in Sandage, Katem, & Sandage (1981) and Silbermann & Smith (1995); these au- thors offer UBV for ... See full document
13
VARIABLE STARS IN NGC 4147 REVISITED: RR LYRAE STARS NEW CCD VI PHOTHOMETRY AND PHYSICAL PARAMETERS
... star in the field of the cluster near the central ...data of SCS05 taken between 1983 and 2003 by an assortment of instruments, the data from AF04 taken during 24 nights between January ... See full document
15
The RR Lyrae period luminosity (Pseudo) color and period color (Pseudo)color relations in the Stromgren photometric system: Theoretical calibration
... relations in the near-infrared bandpasses have been known and studied for a long time now ...best of our knowledge no such studies have ever been carried out in the Stro¨mgren (1963) pass- band ... See full document
11
Variable stars in large magellanic cloud globular clusters II NGC 1786
... period 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 total number ... See full document
11
CCD Photometry of the RR LYRAE Stars in NGC 4147
... results of CCD V and R photometry of the RR Lyrae stars known in NGC ...periodicities of most variables are revised and new ephemerides are ...detected in V2 and ... See full document
13
The Globular Cluster NGC 6402 (M14) II Variable Stars
... sists of ∼137 images per filter, obtained using the ...variable stars. We identified 130 variables, 8 of which are new ...comprised of 56 ab-type RR Lyrae stars, 54 c-type ... See full document
19
TIME SERIES PHOTOMETRY OF GLOBULAR CLUSTERS: M62 (NGC 6266), THE MOST RR LYRAE RICH GLOBULAR CLUSTER IN THE GALAXY?
... photometry, in the B and V bands, for the moderately metal-rich ([Fe/H] ...consists of 168 images per filter, obtained with the Warsaw ...telescope of the Cerro Tololo Inter-American Observatory, ... See full document
21
Physical parameters of three field RR Lyrae stars
... RRL stars as good distance indicators. Long time series of RRL stars produced by space missions have shown to be very informative on many of the most detailed pulsational properties of ... See full document
10
Chemical Compositions of Field and Globular Cluster RR Lyrae Stars I NGC 3201
... analysis of horizontal branch stars in the globular cluster NGC ...11 RR Lyrae stars and one red horizontal branch star with the multi fi ber spectrograph M2FS with the ... See full document
14
Variable stars in large magellanic cloud globular clusters I NGC 1466
... total of 62 variables were found, including 49 RR Lyrae, 1 additional candidate RR Lyrae, 2 long-period variables, a candidate anomalous Cepheid (AC), and 9 variables of unknown ... See full document
14
Properties of RR Lyrae stars in the inner regions of the Large Magellanic Cloud III Near infrared study
... Two stars, MACHO ...extreme in our sample, lie much farther than three sigma away from the mean period-[Fe/H] ...mainder of the stars present a wide range in periods but only a narrow ... See full document
10
A deep near infrared view of the Galactic globular cluster 2 MASS GC 02
... five RR Lyrae stars. Interestingly, the periods of the fundamental-mode (ab-type) RR Lyrae stars, which appear much longer than for typical field RR ... See full document
7
Pulsation period changes as a tool to identify pre zero age horizontal branch stars
... variable stars in M3 were ob- tained from Cacciari et ...non-variable stars, we used the photometry provided by Buonanno et ...HB stars whose po- sition in the CMD have been ... See full document
6
The Globular Cluster NGC 5286 II Variable Stars
... position of the cluster in a metallicity versus HB- type diagram is displayed in Figure ...numbers of blue, red, and variable (RR Lyrae-type) HB stars, respectively; this ... See full document
16
New RR Lyrae variables in binary systems
... few RR Lyrae (RRL) stars have been known to reside in binary ...RRL in the OGLE-III Galactic bulge data. Our approach consists in the search for evidence of the ... See full document
5
Variable stars in the fornax dsph galaxy I The globular cluster fornax 4
... inspection of the intranight light curves was also ...variable stars confirmed by both methods have been accepted (29 stars in ...nights in 2003, four nights in 2004, and one ... See full document
14
On the Impact of Helium Content on the RR Lyrae Distance Scale
... diagrams of low-mass helium burning stellar ...crossing of the RRL ...typical of RRLs located close to the blue edge, to the middle of the IS, and to the red edge of the ...edge ... See full document
7
Characterization of the VVV Survey RR Lyrae Population across the Southern Galactic Plane
... map of the Milky Way together with the distribution of the RRab ...bulge RR Lyrae population appears to extend from ℓ∼ 344 ° , beyond which the excess de fi ned by the bulge RR ... See full document
10
Analysis of Select RR Lyrae Stars in Serpens from uvby$ \beta$ Photoelectric Photometry
... about RR Lyrae stars? As has already been men- tioned, although there is, apparently, a large dis- crepancy between the temperatures obtained from McNamara’s relations and Lester et ...grids, ... See full document
9
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