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[PDF] Top 20 Membership in the Region of the Open Cluster NGC 2244

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Membership in the Region of the Open Cluster NGC 2244

Membership in the Region of the Open Cluster NGC 2244

... NGC 2244 has been the subject of several photometric and astrometric studies; in a very important one made by Marschall et ...(1982), the proper motions of 287 stars ... See full document

10

uvby - $ \beta$ Photoelectric Photometry of the Open Clusters NGC 6811 and NGC 6830

uvby - $ \beta$ Photoelectric Photometry of the Open Clusters NGC 6811 and NGC 6830

... field-of-view. In particular, Luo et al. (2009) dis- covered variability in V10–V18; four of them (V10, V12, V15, V16) had been just reported as suspected variables by Rose & Hintz (2007), ... See full document

13

The Gaia ESO Survey: pre main sequence stars in the young open cluster NGC 3293

The Gaia ESO Survey: pre main sequence stars in the young open cluster NGC 3293

... all the stars in the B94 uvby photometry. A trend of a few hun- dredths of magnitude is observed, as we move from blue to red colours, but the most prominent feature is ... See full document

11

OPTICAL POLARIZATION STUDY ON THE REGION CENTAURUS: NGC 5662

OPTICAL POLARIZATION STUDY ON THE REGION CENTAURUS: NGC 5662

... polarization of starlight is a powerful tech- nique to investigate the nature of the interstellar medium in the region of an open ...cluster. ... See full document

16

Determination of the IMF in the LMC Stellar Cluster NGC 2156

Determination of the IMF in the LMC Stellar Cluster NGC 2156

... clusters. The study of the IMF of stel- lar clusters provides a fundamental piece of ev- idence to the universality ...Stars in a cluster are formed approximately ... See full document

14

Open clusters towards the Galactic centre: chemistry and dynamics A VLT spectroscopic study of NGC 6192, NGC 6404, NGC 6583

Open clusters towards the Galactic centre: chemistry and dynamics A VLT spectroscopic study of NGC 6192, NGC 6404, NGC 6583

... Once the membership probabilities from pure proper motion data were obtained, the CMDs using the 2MASS J magnitudes ...for the stars with a cluster membership probability ... See full document

16

uvby$ \beta$ Photoelectric Photometry of the Open Cluster NGC 6823

uvby$ \beta$ Photoelectric Photometry of the Open Cluster NGC 6823

... to the staff of the SPM Observatory who made the observations pos- ...at the computers, and A. Pani in the 2001 sea- son. Several of us, MAH, CDC, and AGC, thank ... See full document

13

Anchors for the cosmic distance scale: the Cepheid QZ Normae in the open cluster NGC 6067

Anchors for the cosmic distance scale: the Cepheid QZ Normae in the open cluster NGC 6067

... gains in bolstering the short and in- termediate period regimes of the Galactic Cepheid calibra- tion, considerable effort remains to constrain the long-period ...long-period ... See full document

11

A spectroscopic study of the globular Cluster NGC 4147

A spectroscopic study of the globular Cluster NGC 4147

... that the second Na-rich generation was formed by material where Y was ...describe the multiple population phenomenon in GCs, which postulate AGB stars as major polluters (Ventura & D’Antona ... See full document

9

VARIABLE STARS IN THE GLOBULAR CLUSTER NGC 2808

VARIABLE STARS IN THE GLOBULAR CLUSTER NGC 2808

... reside in GCs with extended blue tails on the HB, like NGC 2808 ...again the periods of V13 and V24 are inconsistent with BL Her variability ...versus the typical BL Her period ... See full document

15

On the nature of the Open Clusters in the direction of NGC 6882/5

On the nature of the Open Clusters in the direction of NGC 6882/5

... studying the nature of a cluster is, beyond a doubt, the membership of each star to the ...cluster. Cluster membership can be established using ... See full document

13

CCD PHOTOMETRY OF THE GLOBULAR CLUSTER NGC 6093

CCD PHOTOMETRY OF THE GLOBULAR CLUSTER NGC 6093

... using the IDL data reduction programme: ATV.pro, and measuring the bright- ness of each star in 10 or fewer apertures of differ- ent ...size. The number of counts measured ... See full document

13

The Gaia ESO Survey: Stellar radii in the young open clusters NGC 2264, NGC 2547, and NGC 2516

The Gaia ESO Survey: Stellar radii in the young open clusters NGC 2264, NGC 2547, and NGC 2516

... stars in the open clusters NGC 2516, NGC 2547, NGC ...Crosses in the upper plots show the R sin i of individual targets normalised by the ... See full document

12

VLT FLAMES analysis of 8 giants in the bulge metal poor globular cluster NGC 6522: oldest cluster in the Galaxy? Analysis of 8 giants in NGC 6522

VLT FLAMES analysis of 8 giants in the bulge metal poor globular cluster NGC 6522: oldest cluster in the Galaxy? Analysis of 8 giants in NGC 6522

... and the final spectra of ∼15 fibres positioned on empty sky regions were further combined together and sub- tracted from each star ...measured in the co-added spectra, at several wavelength ... See full document

15

RR Lyrae Stars in the Globular Cluster NGC 6101

RR Lyrae Stars in the Globular Cluster NGC 6101

... within the scope of the educational Space to Grow project, an Australian Research Council Linkage Grant funded over three ...years. The project is supported by four industry partners. These ... See full document

6

CCD Photometry of the Open Clusters NGC 2658,
NGC 2849, and NGC 3247

CCD Photometry of the Open Clusters NGC 2658, NGC 2849, and NGC 3247

... exposures in some filters to measure bright stars. We observe the same cluster field on two different nights in order to cross-check the inter- nal consistency of our photometry ... See full document

13

STUDY OF THE OPEN CLUSTER NGC 1528 THROUGH uvby − β PHOTOELECTRIC PHOTOMETRY

STUDY OF THE OPEN CLUSTER NGC 1528 THROUGH uvby − β PHOTOELECTRIC PHOTOMETRY

... temperature of the hottest stars was fixed by plotting the location of all stars on the theoretical grids of Lester, Gray & Kurucz (here- inafter LGK86), after calculating ... See full document

7

uvby-β photoelectric photometry of the Open Cluster NGC 2343

uvby-β photoelectric photometry of the Open Cluster NGC 2343

... ) of at least 0.01 mag. A series of stan- dard stars was also observed on the night the cluster was observed, so as to transform the data into the standard ...Generally ... See full document

7

FOURIER DECOMPOSITION OF RR LYRAE LIGHT CURVES AND THE SX PHE POPULATION IN THE CENTRAL REGION OF NGC 3201

FOURIER DECOMPOSITION OF RR LYRAE LIGHT CURVES AND THE SX PHE POPULATION IN THE CENTRAL REGION OF NGC 3201

... stars. In the top panel the black lines correspond to the funda- mental mode P-L calibration of Arellano Ferro et ...for the SX Phe in NGC 5024, and their ... See full document

16

uvby-β photoelectric photometry and membership determination of the Open Cluster NGC 2353

uvby-β photoelectric photometry and membership determination of the Open Cluster NGC 2353

... thank the staff of the OAN and L. Parrao for their assistance in securing the observa- ...thank the IA-UNAM for the opportunity to carry out the ...part of ... See full document

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