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Related papers: The ACS Virgo Cluster Survey II. Data Reduction Pr…

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Context. This is the third paper of a series devoted to the WIde-field Nearby Galaxy-cluster Survey (WINGS).WINGS is a long term project aimed at gathering wide-field, multiband imaging and spectroscopy of galaxies in a complete sample of…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-11 T. Valentinuzzi , D. Woods , G. Fasano , M. Riello , M. D'Onofrio , J. Varela , D. Bettoni , A. Cava , W. J. Couch , A. Dressler , J. Fritz , M. Moles , A. Omizzolo , B. M. Poggianti , P. Kjaergaard

Combining data from the ACS Virgo Cluster Survey (ACSVCS) and the Next Generation Virgo cluster Survey (NGVS), we extend previous studies of color gradients of the globular cluster (GC) systems of the two most massive galaxies in the Virgo…

Images from the next generation of telescopes will enable strikingly detailed reconstruction of the dark matter distributions in galaxy cluster cores using strong gravitational lensing analysis. This will provide a key test of Lambda-CDM…

Cosmology and Nongalactic Astrophysics · Physics 2009-02-23 Dan Coe

We have constructed the most-comprehensive catalog of photometry and proper motions ever assembled for a globular cluster (GC). The core of $\omega$Cen has been imaged over 650 times through WFC3's UVIS and IR channels for the purpose of…

Solar and Stellar Astrophysics · Physics 2017-06-21 A. Bellini , J. Anderson , L. R. Bedin , I. R. King , R. P. van der Marel , G. Piotto , A. M. Cool

Aims: We present a wide-field multi-color survey of a homogeneous sample of eleven clusters of galaxies for which we measure total masses and mass distributions from weak lensing. Methods: The eleven clusters in our sample are all X-ray…

Astrophysics · Physics 2009-11-13 S. Bardeau , G. Soucail , J. P. Kneib , O. Czoske , H. Ebeling , P. Hudelot , I. Smail , G. P. Smith

We present a new, objectively defined catalog of candidate galaxy clusters based on the galaxy catalogs from the Digitized Second Palomar Observatory Sky Survey (DPOSS). This cluster catalog, derived from the best calibrated plates in the…

We use multi-pointing HST ACS and wide field Subaru Suprime-Cam imaging to study the globular cluster system of the L* elliptical galaxy NGC 4278. We have also obtained a handful of new globular cluster spectra with Keck/DEIMOS. We…

Cosmology and Nongalactic Astrophysics · Physics 2013-11-26 Christopher Usher , Duncan A. Forbes , Lee R. Spitler , Jean P. Brodie , Aaron J. Romanowsky , Jay Strader , Kristin A. Woodley

Weak lensing applied to deep optical images of clusters of galaxies provides a powerful tool to reconstruct the distribution of the gravitating mass associated to these structures. We use the shear signal extracted by an analysis of deep…

We present $V$-band light curves of 61 variables from the core of the globular cluster M5 obtained using a newly developed image subtraction method (ISM). Four of these variables were previously unknown. Only 26 variables were found in the…

Astrophysics · Physics 2009-10-31 A. Olech , P. R. Wozniak , C. Alard , J. Kaluzny , I. B. Thompson

We present an efficient and robust approach for extracting clusters of galaxies from weak lensing survey data and measuring their properties. We use simple, physically-motivated cluster models appropriate for such sparse, noisy data, and…

Astrophysics · Physics 2008-10-07 F. Feroz , P. J. Marshall , M. P. Hobson

We have measured half-light radii, r_h, for globular clusters (GCs) belonging to the 100 early-type galaxies observed in the ACS Virgo Cluster Survey and the elliptical galaxy NGC 4697. An analysis of the dependencies of the measured r_h on…

In this paper and a companion paper, we report on a wide-field imaging survey of the globular cluster (GC) populations around M87 carried out with Suprime-Cam on the 8.2m Subaru telescope. Here we describe the observations, data reduction,…

The ACS Nearby Galaxy Survey Treasury (ANGST) is a systematic survey to establish a legacy of uniform multi-color photometry of resolved stars for a volume-limited sample of nearby galaxies (D<4 Mpc). The survey volume encompasses 69…

New Effelsberg 1.4 GHz observations of the central 10\degr x 10\degr of the Virgo cluster are presented. NVSS data are used to subtract point sources from our map. During the data reduction process special care is taken (i) to disentangle…

Astrophysics · Physics 2009-11-10 B. Vollmer , W. Reich , R. Wielebinski

Context: The combination of optical and near-infrared (NIR) colours has the potential to break the age/metallicity degeneracy and offers a better metallicity sensitivity than optical colours alone. Previous studies of extragalactic globular…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 A. L. Chies-Santos , S. S. Larsen , E. M. Wehner , H. Kuntschner , J. Strader , J. P. Brodie

We present Sloan g and i imaging from the GMOS instrument on the Gemini North telescope for the globular cluster (GC) system around the Virgo galaxy NGC 4649 (M60). Our three pointings, taken in good seeing conditions, cover an area of…

The Hubble sequence is a common classification scheme for the structure of galaxies. Despite the tremendous usefulness of this diagnostic, we still do not fully understand when, where, and how this morphological ordering was put in place.…

Astrophysics of Galaxies · Physics 2015-06-23 Davide Fiacconi , Robert Feldmann , Lucio Mayer

We present a weak lensing cluster search using Hyper Suprime-Cam Subaru Strategic Program (HSC survey) first-year data. We pay special attention to the dilution effect of cluster member and foreground galaxies on weak lensing signals from…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-29 Takashi Hamana , Masato Shirasaki , Yen-Ting Lin

The second Red-sequence Cluster Survey (RCS-2) is a ~1000 square degree, multi-color imaging survey using the square-degree imager, MegaCam, on the Canada-France-Hawaii Telescope (CFHT). It is designed to detect clusters of galaxies over…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 David G. Gilbank , M. D. Gladders , H. K. C. Yee , B. C. Hsieh

We have identified 38 candidates of intracluster planetary nebulae (ICPNe) in a $34'\times27'$ field in the core of the Virgo cluster based on the Suprime-Cam imaging through two narrow-band filters centered at the redshifted wavelengths of…