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Related papers: Photometry Study of Open Cluster NGC 7788

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We present high precision CCD photometry of 1791 objects in 20 open clusters with an age from 10 Myr to 1 Gyr. These observations were performed within the Delta a photometric system which is primarily used to detect chemically peculiar…

Astrophysics · Physics 2009-11-10 E. Paunzen , K. Zwintz , H. M. Maitzen , O. I. Pintado , M. Rode-Paunzen

We present CCD photometry and a proper motion study of the young open star cluster, NGC 581 (M 103). Fitting isochrones to the colour magnitude diagram, we found an age of 16 +/- 4 Myr and a distance of roughly 3 kpc for this cluster. The…

Astrophysics · Physics 2007-05-23 Joerg Sanner , Michael Geffert , Jens Brunzendorf , Juergen Schmoll

CCD photometry on the intermediate-band uvbyCaHbeta system is presented for the metal-deficient open cluster, NGC 2243. Restricting the data to probable single members of the cluster using the CMD and the photometric indices alone generates…

Astrophysics · Physics 2009-11-10 B. J. Anthony-Twarog , J. Atwell , B. A. Twarog

We present initial results of a photometric survey of open star clusters, primarily in the southern hemisphere, taken in the u'g'r'i'z' filter system. While our entire observed sample covers more than 100 clusters, here we present data for…

We present BV and u'g'r'i' CCD photometry of the central region of NGC 2482. We also present BVu'g' CCD photometry of five clusters that have been poorly studied in the past: Ruprecht 42, Ruprecht 51, Ruprecht 153, Ruprecht 154; and AH03…

Solar and Stellar Astrophysics · Physics 2015-06-23 Kevin Krisciunas , Hektor Monteiro , Wilton Dias

We present the results of CCD UBVRI observations of the open cluster NGC 6811 obtained on 18th July 2012 with the 1m telescope at the T\"UB\.ITAK National Observatory (TUG). Using these photometric results, we determine the structural and…

Astrophysics of Galaxies · Physics 2016-08-10 T. Yontan , S. Bilir , Z. F. Bostancı , T. Ak , S. Karaali , T. Güver , S. Ak , S. Duran , E. Paunzen

The detection of magnetic chemically peculiar (CP2) stars in open clusters of the Milky Way can be used to study the influence of different galactic environments on the (non-)presence of peculiarities, which has to be taken into account in…

Astrophysics · Physics 2009-11-11 E. Paunzen , M. Netopil , I. Kh. Iliev , H. M. Maitzen , A. Claret , O. I. Pintado

We present analysis of deep CCD photometry for the very rich, old open star cluster NGC 6819. These CFH12K data results represent the first of nineteen open star clusters which were imaged as a part of the CFHT Open Star Cluster Survey. We…

We present and discuss new photometric data obtained with an IR camera in the J and K pass-bands for the intermediate age open clusters IC 166 (936 stars in total) and NGC 7789 (1030 stars in total). Ic 166 is a poorly studied open cluster…

Astrophysics · Physics 2007-05-23 Antonella Vallenari , Giovanni Carraro , Andrea Richichi

The Kepler space telescope has proven to be a gold mine for the study of variable stars. Unfortunately, Kepler only returns a handful of pixels surrounding each star on the target list, which omits a large number of stars in the Kepler…

Solar and Stellar Astrophysics · Physics 2015-06-17 Charles A. Kuehn , Jason Drury , Dennis Stello , Timothy R. Bedding

This paper presents CCD multicolor photometry for 304 old star clusters in the nearby spiral galaxy M31. Of which photometry of 55 star clusters is first obtained. The observations were carried out as a part of the…

Astrophysics of Galaxies · Physics 2015-06-23 Jun Ma , Song Wang , Zhenyu Wu , Tianmeng Zhang , Hu Zou , Jundan Nie , Zhiming Zhou , Xu Zhou , Jianghua Wu , Cuihua Du , Qirong Yuan

In this paper we present photometric CCD observations of the globular cluster NGC 6093 (M80) in filters B, V , R and I. We produce the colour-magnitude diagrams for this object and obtain values for its metallicity [Fe/H], reddening E(V-B),…

Solar and Stellar Astrophysics · Physics 2016-06-15 A. Ruelas-Mayorga , L. J. Sanchez , C. A. Bernal-Herrera , A. Nigoche-Netro , J. Echevarria , A. M. Garcia

We report CCD photometric observations of the globular cluster NGC 5897, in the Johnson system filters B, V , R, and I. With the values for these magnitudes we obtain various colour indices and produce several colour-magnitude diagrams. We…

Solar and Stellar Astrophysics · Physics 2023-11-14 A. Ruelas-Mayorga , L. J. Sánchez , E. Macías-Estrada , A. Nigoche-Netro

We have obtained CCD UBVI_{KC} photometry down to V ~ 21.0 for the open clusters Berkeley 26, Czernik 27, Melotte 72, NGC 2479 and BH 37. The latter has never been studied before. Cluster stellar density profiles were obtained from star…

Astrophysics of Galaxies · Physics 2015-05-14 Andres E. Piatti , Juan J. Claria , Andrea V. Ahumada

Deep CCD photometry in the uvby-Hbeta intermediate-band system is presented for the cluster NGC 2548 (M 48). A complete membership analysis based on astrometric and photometric criteria is applied. The photometric analysis of a selected…

Astrophysics · Physics 2015-12-24 L. Balaguer-Nunez , C. Jordi , D. Galadi-Enriquez

We present and discuss broad band CCD $UBV(I)_C$ photometry and low resolution spectroscopy for stars in the region of the open cluster NGC 6996, located in the North America Nebula. The new data allow us to tightly constrain the basic…

Astrophysics · Physics 2009-11-10 Sandro Villanova , Gustavo Baume , Giovanni Carraro , Anna Geminale

We present uvby-beta CCD photometry of the field of the open cluster NGC 1893. Our photometry is deep enough to cover the complete main sequence B spectral type. We identify ~50 very likely members of the cluster down to spectral type…

Astrophysics · Physics 2009-11-06 A. Marco , I. Negueruela , G. Bernabeu

The variable star population of the galactic globular cluster NGC 1851 (C0512-400) has been studied by CCD photometry, from observations made in the B, V, and I bands during 1993-4. Light curves are presented for 29 variables, seven of…

Astrophysics · Physics 2009-10-30 Alistair R. Walker

CCD photometry of the intermediate-age open cluster, IC 4651, on the uvbyHbeta system is presented and analyzed. By using a combination of the information from the color-magnitude diagram (CMD) and the color-color diagrams, a sample of 98…

Astrophysics · Physics 2009-10-31 B. J. Anthony-Twarog , B. A. Twarog

We have combined existing optical magnitudes for stars in seven open clusters and 54 field stars with the corresponding JHKs photometry from the Two Micron All Sky Survey (2MASS). Combining optical with near-IR photometry broadens the color…

Astrophysics · Physics 2009-11-10 Ata Sarajedini , Ken Brandt , Aaron Grocholski , Glenn Tiede