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Related papers: SMC: Stellar Populations through deep CMDs

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We present an analysis of CMDs of three intermediate-age LMC clusters, namely NGC 2173, SL 556 and NGC 2155. The main goal of our project is to investigate the amount of convective core overshoot necessary to reproduce the CMDs of…

Astrophysics · Physics 2009-11-07 J. -H. Woo , C. Gallart , P. Demarque , S. Yi , M. Zoccali

We aim to identify the stellar populations (mostly red giants and young stars) detected in the ISOGAL survey at 7 and 15micron towards a field (LN45) in the direction l=-45, b=0.0. The sources detected in the survey of the Galactic plane by…

Astrophysics · Physics 2009-11-13 S. Ganesh , A. Omont , U. C. Joshi , K. S. Baliyan , M. Schultheis , F. Schuller , G. Simon

Context. Stellar clusters in the Small Magellanic Cloud (SMC) are useful probes for studying the chemical and dynamical evolution of this neighbouring dwarf galaxy, enabling inspection of a large period covering over 10 Gyr. Aims: The main…

Solar and Stellar Astrophysics · Physics 2014-09-17 Bruno Dias , Leandro Kerber , Beatriz Barbuy , Basilio Santiago , Sergio Ortolani , Eduardo Balbinot

The Advanced Camera for Surveys on board the Hubble Space Telescope has been used to obtain deep high-resolution images of the giant early-type galaxy NGC 1316 which is an obvious merger remnant. These observations supersede previous,…

Astrophysics · Physics 2009-11-10 Paul Goudfrooij , Diane Gilmore , Bradley C. Whitmore , Francois Schweizer

We have obtained V and I-band photometry for 1886 stars down to I=27 and V=28 in the field of the dwarf irregular galaxy WLM, using deep STIS CL and LP-band images taken in the parallel mode with the Hubble Space Telescope. The photometry…

Astrophysics · Physics 2009-10-31 M. Rejkuba , D. Minniti , M. D. Gregg , A. A. Zijlstra , M. V. Alonso , P. Goudfrooij

Aim: We aim to estimate the age and reddening parameters of already identified star clusters within the Small Magellanic Cloud (SMC) in a consistent way using available photometric data, classify them based on their mass and strength, and…

Astrophysics of Galaxies · Physics 2018-09-12 P. K. Nayak , A. Subramaniam , S. Choudhury , Ram Sagar

We present Str\"omgren photometry of the Galactic Globular Cluster M3 to study its multiple generations phenomenon. The use of different colour-magnitude diagrams and especially of the notoriously efficient c_y index allowed us to detect a…

Solar and Stellar Astrophysics · Physics 2017-08-30 Davide Massari , Emilio Lapenna , Angela Bragaglia , Emanuele Dalessandro , Rodrigo Contreras Ramos , Pia Amigo

A sample of 97 galactic field Be stars were studied by taking into account the effects induced by the fast rotation on their fundamental parameters. All program stars were observed in the BCD spectrophotometric system in order to minimize…

Astrophysics · Physics 2009-11-11 J. Zorec , Yves Fremat , L. Cidale

Recent studies using 21 cm HI line and $^{13}$CO line observations in the inner part of the Galaxy have resulted in new distances for 30 Galactic supernova remnants (SNRs). 15 of those remnants have observed X-ray spectra, for which…

Astrophysics of Galaxies · Physics 2018-10-17 D. A. Leahy , S. Ranasinghe

In this paper, we present photometry for young star clusters in M31, which are selected from Caldwell et al. These star clusters have been observed as part of the Beijing--Arizona--Taiwan--Connecticut (BATC) Multicolor Sky Survey from 1995…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Song Wang , Jun Ma , Zhou Fan , Zhenyu Wu , Tianmeng Zhang , Hu Zou , Xu Zhou

(Abridged) We have investigated the reliability of the widely used I-band Tip of the RGB relative distances for a sample of Local Group galaxies with complex Star Formation Histories (SFR) and Age Metallicity Relationships (AMR) namely the…

Astrophysics · Physics 2009-11-10 Maurizio Salaris , Leo Girardi

We present the age distributions for star clusters and individual stars in the Small Magellanic Cloud (SMC) based on data from the Magellanic Clouds Photometric Survey by Zaritsky and collaborators. The age distribution of the SMC clusters…

Astrophysics · Physics 2011-02-11 Rupali Chandar , S. Michael Fall , Bradley C. Whitmore

In this paper, we present a multi-color photometric study of the nearby spiral galaxy M81, using images obtained with the Beijing Astronomical Observatory 60/90 cm Schmidt Telescope in 13 intermediate-band filters from 3800 to 10000{\AA}.…

Astrophysics · Physics 2009-10-31 X. Kong , X. Zhou , J. S. Chen , F. Z. Cheng

The periphery of the Small Magellanic Cloud (SMC) can unlock important information regarding galaxy formation and evolution in interacting systems. Here, we present a detailed study of the extended stellar structure of the SMC using deep…

We present multi-colour broad band CCD photometric observations of a few thousands of stars located region of the galactic globular clusters NGC 1904 and NGC 6341. These observations are used to generate their deep colour magnitude diagrams…

Astrophysics · Physics 2007-05-23 Alok C. Gupta

We present a study of a recently discovered stellar overdensity near the northern edge of the Small Magellanic Cloud (SMCNOD). We exploited variable stars from the fourth release of the Optical Gravitational Lensing Experiment (OGLE). We…

Astrophysics of Galaxies · Physics 2018-09-18 Z. Prudil , E. K. Grebel , I. Dékány , R. Smolec

We present a photometric study of M13 multiple stellar populations over a wide field of view, covering approximately 6.5 half-light radii, using archival Isaac Newton Telescope observations to build an accurate multi-band Str\"omgren…

Solar and Stellar Astrophysics · Physics 2017-12-06 A. Savino , D. Massari , A. Bragaglia , E. Dalessandro , E. Tolstoy

We present wide-field and high-precision BV and Ca & Stromgren by photometry of omega Centauri, which represents one of the most extensive photometric surveys to date for this cluster. The member stars of omega Cen are well discriminated…

Astrophysics · Physics 2009-11-10 S. -C. Rey , Y. -W. Lee , C. Ree , J. -M. Joo , Y. -J. Sohn , A. Walker

We present our new, fully-automated method to detect and measure the ages of star clusters in nearby galaxies, where individual stars can be resolved. The method relies purely on statistical analysis of observations and Monte-Carlo…

This is the second paper in our series about the search for multiple populations in Magellanic Cloud star clusters using the Hubble Space Telescope. Here we report the detection of multiple stellar populations in the colour-magnitude…

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