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Related papers: The CFHT Open Star Cluster Survey I -- Cluster Sel…

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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 report the first search for new star clusters performed using the VISTA near-infrared YJKs Magellanic Clouds survey (VMC) data sets. We chose a pilot field of ~ 0.4 deg^2 located in the South-West of the Small Magelllanic Cloud (SMC)…

Aims: We measure the clustering properties for a large samples of u- (z~3), g- (z~4), and r- (z~5) dropouts from the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) Deep fields. Methods: Photometric redshift distributions along with…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 H. Hildebrandt , J. Pielorz , T. Erben , L. van Waerbeke , P. Simon , P. Capak

Cepheids in open clusters (cluster Cepheids: CCs) are of great importance as zero-point calibrators of the Galactic Cepheid period-luminosity relationship (PLR). We perform an 8-dimensional all-sky census that aims to identify new bona-fide…

Astrophysics of Galaxies · Physics 2014-06-11 Richard I. Anderson , Laurent Eyer , Nami Mowlavi

The widely varying dwarf galaxy counts in different environments provide a strong challenge to standard hierarchical clustering models. The luminosity function is not universal, but seems to be strongly dependent upon environment. In this…

Astrophysics · Physics 2009-11-07 S. Sabatini , J. Davies , R. Scaramella , R. Smith , M. Baes , S. M. Linder , S. Roberts , V. Testa

We present deep photometric observations of the open cluster NGC 2477 using HST/WFPC2. By identifying seven cluster white dwarf candidates, we present an analysis of the white dwarf age of this cluster, using both the traditional method of…

Solar and Stellar Astrophysics · Physics 2016-02-19 Elizabeth J. Jeffery , Ted von Hippel , Steven DeGennaro , David van Dyk , Nathan Stein , William H. Jefferys

In the third paper of this series aimed at developing the tools for analysing resolved stellar populations using the cameras on board of the James Webb Space Telescope (JWST), we present a detailed multi-band study of the 2 Gyr Galactic…

Solar and Stellar Astrophysics · Physics 2023-08-22 D. Nardiello , L. R. Bedin , M. Griggio , M. Salaris , M. Scalco , S. Cassisi

Context. We present a photometric and astrometric catalog of 187963 stars located in the field around the old super-metal-rich Galactic open cluster NGC 6253. The total field-of-view covered by the catalog is 34' x 33'. In this field, we…

Astrophysics of Galaxies · Physics 2015-05-13 M. Montalto , G. Piotto , S. Desidera , I. Platais , G. Carraro , Y. Momany , F. De Marchi , A. Recio-Blanco

The number and distribution of dwarf satellite galaxies remain a critical test of cold dark matter-dominated structure formation on small scales. Until recently, observational information about galaxy formation on these scales has been…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Ryan Speller , James E. Taylor

The Fornax Deep Survey (FDS), an imaging survey in the u', g', r', and i'-bands, has a supreme resolution and image depth compared to the previous spatially complete Fornax Cluster Catalog (FCC). Our new data allows us to study the galaxies…

We built Galactic open star cluster mass functions (CMFs) for different age sub-samples in the wider solar neighbourhood. We present a simple cluster formation and evolution model to reproduce the main features of the CMFs. We used an…

Astrophysics of Galaxies · Physics 2023-04-26 Andreas Just , Anatoly E. Piskunov , Jonathan H. Klos , Dana A. Kovaleva , Evgeny V. Polyachenko

We present a photometric catalogue of star cluster candidates in Hickson compact groups (HCGs) 7, 31, 42, 59, and 92, based on observations with the Advanced Camera for Surveys and the Wide Field Camera 3 on the Hubble Space Telescope. The…

Astrophysics of Galaxies · Physics 2015-06-24 K. Fedotov , S. C. Gallagher , P. R. Durrell , N. Bastian , I. S. Konstantopoulos , J. Charlton , K. E. Johnson , R. Chandar

(Abridged) Context. This is the second paper of a series devoted to the WIde Field Nearby Galaxy-cluster Survey (WINGS). WINGS is a long term project which is gathering wide-field, multi-band imaging and spectroscopy of galaxies in a…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 J. Varela , M. D'Onofrio , C. Marmo , G. Fasano , D. Bettoni , A. Cava , W. J. Couch , A. Dressler , P. Kjaergaard , M. Moles , E. Pignatelli , B. M. Poggianti , T. Valentinuzzi

Using light curves with $\sim$3 min cadence and a duration of 2 hrs made using the OmegaWhite survey, we present the results of a search for short-period variable stars in the field of 20 open clusters. We identified 92 variable stars in…

Solar and Stellar Astrophysics · Physics 2022-04-06 R. Toma , G. Ramsay , C. S. Jeffery , S. A. Macfarlane , P. Woudt , P. J. Groot

(abridged) We present an investigation of the clustering of i'AB<24.5 galaxies in the redshift interval 0.2<z<1.2. Using 100,000 precise photometric redshifts in the four ultra-deep fields of the Canada-France Legacy Survey, we construct a…

Astrophysics · Physics 2009-11-13 H. J. McCracken , O. Ilbert , Y. Mellier , E. Bertin , L. Guzzo , S. Arnouts , O. Le Fèvre , G. Zamorani

We present the results of a new search for galaxy-scale strong lensing systems in CFHTLS Wide. Our lens-finding technique involves a preselection of potential lens galaxies, applying simple cuts in size and magnitude. We then perform a…

Astrophysics of Galaxies · Physics 2016-08-03 D. Paraficz , F. Courbin , A. Tramacere , R. Joseph , R. B. Metcalf , J. -P. Kneib , P. Dubath , D. Droz , F. Filleul , D. Ringeisen , C. Schäfer

In this paper, we analyse the light distribution in the Hydra I cluster of galaxies to explore their low surface brightness features, measure the intra-cluster light, and address the assembly history of the cluster. For this purpose, we…

We study the characteristics of the galaxy cluster samples expected from the European Space Agency's Euclid satellite and forecast constraints on cosmological parameters describing a variety of cosmological models. The method used in this…

Cosmology and Nongalactic Astrophysics · Physics 2016-03-23 B. Sartoris , A. Biviano , C. Fedeli , J. G. Bartlett , S. Borgani , M. Costanzi , C. Giocoli , L. Moscardini , J. Weller , B. Ascaso , S. Bardelli , S. Maurogordato , P. T. P Viana

Star clusters are superb astrophysical laboratories containing cospatial and coeval samples of stars with similar chemical composition. We have initiated the Sejong Open cluster Survey (SOS) - a project dedicated to providing homogeneous…

Solar and Stellar Astrophysics · Physics 2015-06-16 Hwankyung Sung , Beomdu Lim , Michael S. Bessell , Jinyoung S. Kim , Hyenoh Hur , Moo-Young Chun , Byeong-Gon Park