English
Related papers

Related papers: Self-consistent physical parameters for MC cluster…

200 papers

We analysed Washington $CMT_1$ photometry of star clusters located along the minor axis of the LMC, from the LMC optical centre up to $\sim$ 39 degrees outwards to the North-West. The data base was exploited in order to search for new star…

Astrophysics of Galaxies · Physics 2017-10-18 Andrés E. Piatti , Andrew A. Cole , Bryn Emptage

We present structural parameters for 204 stellar clusters in the Small Magellanic Cloud derived from fitting King and Elson, Fall, & Freeman model profiles to the V-band surface brightness profiles as measured from the Magellanic Clouds…

Astrophysics · Physics 2016-08-30 Andrew Hill , Dennis Zaritsky

The number of star clusters that populate the Large Magellanic Cloud (LMC) at deprojected distances < 4 deg has been recently found to be nearly double the known size of the system. Because of the unprecedented consequences of this outcome…

Astrophysics of Galaxies · Physics 2018-02-14 Andrés E. Piatti

We analyze the stellar populations of the Canis Major stellar over-density, using quantitative color-magnitude diagram (CMD) fitting techniques. The analysis is based on photometry obtained with the Wide Field Imager at the 2.2m telescope…

We report on HST observations of six candidate old globular clusters in the Large Magellanic Cloud: NGC 1754, NGC 1835, NGC 1898, NGC 1916, NGC 2005 and NGC 2019. Deep exposures with the F555W and F814W filters provide us with…

We report results of proper motions of 25 known Small Magellanic Cloud (SMC) clusters (ages ~ 1 - 10 Gyr old) derived from Gaia EDR3 data sets. When these mean proper motions are gathered with existent radial velocity measurements to…

Astrophysics of Galaxies · Physics 2021-06-09 Andrés E. Piatti

We present results on the recently discovered stellar system YMCA-1, for which physical nature and belonging to any of the Magellanic System galaxies have been irresolutely analyzed. We used SMASH and {\it Gaia} EDR3 data sets to conclude…

Astrophysics of Galaxies · Physics 2022-07-27 Andrés E. Piatti , Scott Lucchini

We performed the photometric analysis of M2 and M92 globular clusters in g and r bands of SLOAN photometric system. We transformed these g and r bands into BV bands of Johnson-Cousins photometric system and built the color magnitude diagram…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-28 Hira Fatima , Muzammil Mushtaq , Syed Faisal Ur Rahman

We utilize nonlinear pulsation models to reproduce the observed light and color curves for two samples of bump Cepheid variables, 19 from the Large Magellanic Cloud and 9 from the Small Magellanic Cloud. This analysis determines the…

Astrophysics · Physics 2009-11-11 S. C. Keller , P. R. Wood

Understanding the age and metallicity dependence of the absolute magnitude and colour of red clump (RC) stars is crucial for validating the accuracy of stellar evolution models and enhancing their reliability as a standard candle. However,…

Solar and Stellar Astrophysics · Physics 2025-10-13 Hiroki Onozato , Yoshifusa Ita , Yoshikazu Nakada

We present results from the largest CaII triplet line metallicity study of Small Magellanic Cloud (SMC) field red giant stars to date, involving 3037 objects spread across approximately 37.5 sq. deg., centred on this galaxy. We find a…

Astrophysics of Galaxies · Physics 2015-06-19 P. D. Dobbie , A. A. Cole , A. Subramaniam , S. Keller

We have undertaken a systematic study of pre-main sequence (PMS) stars spanning a wide range of masses (0.5 - 4 Msolar), metallicities (0.1 - 1 Zsolar) and ages (0.5 - 30 Myr). We have used the Hubble Space Telescope (HST) to identify and…

Solar and Stellar Astrophysics · Physics 2015-08-31 Guido De Marchi , Nino Panagia

Establishing the reliability with which stellar population parameters can be measured is vital to extragalactic astronomy. Galactic GCs provide an excellent medium in which to test the consistency of Single Stellar Population (SSP) models…

Astrophysics · Physics 2008-11-26 Jon T. Mendel , Robert N. Proctor , Duncan A. Forbes

Stellar population models are commonly calculated using star clusters as calibrators for those evolutionary stages that depend on free parameters. However, discrepancies exist among different models, even if similar sets of calibration…

Astrophysics of Galaxies · Physics 2015-06-15 Noelia E. D. Noel , Laura Greggio , Alvio Renzini , Marcella Carollo , Claudia Maraston

We present preliminary findings from the photometric survey "Yes, Magellanic Clouds Again" (YMCA, PI: V. Ripepi), covering 110 square degrees in the outer regions of the Magellanic Clouds (MCs), a pair of interacting galaxies and the most…

Astrophysics of Galaxies · Physics 2024-07-30 M. Gatto , V. Ripepi , M. Tosi , M. Bellazzini , M. Cignoni , C. Tortora , M. Dall'Ora

We present a new study of late-type eclipsing binary stars in the Small Magellanic Cloud (SMC) undertaken with the aim of improving the distance determination to this important galaxy. A sample of 10 new detached, double-lined eclipsing…

The evolution of star clusters in the Magellanic Clouds has been the subject of significant recent controversy, particularly regarding the importance and length of the earliest, largely mass-independent disruption phase (referred to as…

Astrophysics · Physics 2009-11-13 Richard de Grijs , Simon P. Goodwin

We present a multi-wavelength study of three star forming regions, spanning the age range 1-14 Myr, located between the 30 Doradus complex and supernova SN1987A in the Large Magellanic Cloud (LMC). We reliably identify about 1000 pre-main…

Solar and Stellar Astrophysics · Physics 2015-06-03 L. Spezzi , G. De Marchi , N. Panagia , A. Sicilia-Aguilar , B. Ercolano

We are using full spectrum fitting to determine the ages and metallicities of Galactic clusters (M67 and globular clusters). We find that the method is very accurate to measure the metallicity. Blue horizontal branches are well identified…

Astrophysics · Physics 2009-11-13 Mina Koleva , Philippe Prugniel , Pierre Ocvirk , Damien Le Borgne

We present a Bayesian method to determine simultaneously the age, metallicity, distance modulus, and interstellar reddening by dust of any resolved stellar population, by comparing the observed and synthetic color magnitude diagrams on a…

Astrophysics of Galaxies · Physics 2019-05-08 V. H. Ramírez-Siordia , G. Bruzual , B. Cervantes Sodi , T. Bitsakis
‹ Prev 1 4 5 6 7 8 10 Next ›