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Related papers: SMC: Stellar Populations through deep CMDs

200 papers

We present deep color-magnitude diagrams (CMDs) for a field along the outer disk of M31 based on archival Hubble Space Telescope Wide Field Planetary Camera 2 observations in the F555W (~V) and F814W (~I) filters. The CMDs, which contain a…

Astrophysics · Physics 2007-05-23 Ata Sarajedini , Jeffrey Van Duyne

In this paper we discuss the age and spatial distribution of young (age$<$1Gyr) SMC and LMC clusters using data from the Magellanic Cloud Photometric Surveys. Luminosities are calculated for all age-dated clusters. Ages of 324 and 1193…

Astrophysics of Galaxies · Physics 2015-05-18 Katharina Glatt , Eva K. Grebel , Andreas Koch

We present WFPC2 and ground-based VI photometry of NGC 121 and a nearby field in the outer SMC. For NGC 121, we measure a true distance modulus of (m-M)0 = 18.96 +/- 0.04 (distance of 61.9 +/- 1.1 kpc), age of 10.6 +/- 0.5 Gyr, metallicity…

In some scenarios for the formation of the Milky Way bulge the stellar population at the edges of the boxy bulge may be younger than those on the minor axis, or close to the Galactic center. So far the only bulge region where deep…

Astrophysics of Galaxies · Physics 2015-06-17 E. Valenti , M. Zoccali , A. Renzini , T. M. Brown , O. Gonzalez , D. Minniti , Victor P. Debattista , L. Mayer

The LMC clusters are unique templates of simple stellar population (SSP), being crucial to calibrate models describing the integral light as well as to test the stellar evolution theory. With this in mind we analyzed HST/WFPC2 (V, B--V)…

Astrophysics · Physics 2009-11-13 L. O. Kerber , B. X. Santiago

We study the stellar populations, star formation histories and star formation properties for a sample of blue compact dwarf galaxies (BCDs) selected by cross-correlating the Gil de Paz et al. (2003) sample with the Sloan Digital Sky Survey…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 Yinghe Zhao , Qiusheng Gu , Yu Gao

We present the analysis of deep colour-magnitude diagrams (CMDs) of 6 stellar fields in the LMC. The data were obtained using HST/WFPC2 in the I and V filters, reaching V=26.5. We discuss and apply a method of correcting CMDs for…

Astrophysics · Physics 2009-11-10 S. C. Javiel , B. X. Santiago , L. O. Kerber

We present HST photometry of the resolved stellar population in the dwarf irregular galaxy NGC 1705. The galaxy has been observed with both WFPC2 and NICMOS, and successful images have been obtained in the F555W, F814W, F110W and F160W…

Astrophysics · Physics 2009-11-06 M. Tosi , E. Sabbi , M. Bellazzini , A. Aloisi , L. Greggio , C. Leitherer , P. Montegriffo

The Magellanic Clouds are nearby dwarf irregular galaxies whose morphologies show different properties when traced by different stellar populations, making them an important laboratory for studying galaxy morphologies. We study the…

We present wide-field photometry of resolved stars in the nearby Sculptor dwarf spheroidal galaxy using CTIO/MOSAIC, going down to the oldest Main Sequence Turn-Off. The accurately flux calibrated wide field Colour-Magnitude Diagrams can be…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 T. J. L. de Boer , E. Tolstoy , A. Saha , K. Olsen , M. J. Irwin , G. Battaglia , V. Hill , M. D. Shetrone , G. Fiorentino , A. Cole

We present for the first time Washington CT1 photometry for 11 unstudied or poorly studied candidate star clusters. The selected objects are of small angular size, contain a handful of stars, and are projected towards the innermost regions…

Astrophysics of Galaxies · Physics 2015-06-05 Andrés E. Piatti , Eduardo Bica

Colour-magnitude diagrams (CMD) of the SMC star cluster NGC419, derived from HST/ACS data, reveal a well-delineated secondary clump located below the classical compact red clump typical of intermediate-age populations. We demonstrate that…

Solar and Stellar Astrophysics · Physics 2009-11-13 Leo Girardi , Stefano Rubele , Leandro Kerber

The optical integrated spectra of three LMC young stellar clusters (NGC 1984, NGC 1994 and NGC 2011) exhibit concave continua and prominent molecular bands which deviate significantly from the predictions of single stellar population (SSP)…

Astrophysics of Galaxies · Physics 2017-08-30 Randa S. Asa'd , Alexandre Vazdekis , Miguel Cervino , Noelia E. D. Noel , Michael A. Beasley , Mahmoud Kassab

By far, the color-magnitude diagrams (CMDs) of Galactic open clusters have been considered proto-types of single stellar populations. By using photometry in ultraviolet and optical bands we discovered that the nearby young cluster NGC6705…

Solar and Stellar Astrophysics · Physics 2018-08-29 A. F. Marino , A. P. Milone , L. Casagrande , N. Przybilla , L. Balaguer-Nunez , M. Di Criscienzo , A. Serenelli , F. Vilardell

We present the detection of very extended stellar populations around the Large Magellanic Cloud (LMC) out to R~21 degrees, or ~18.5 kpc at the LMC distance of 50 kpc, as detected in the Survey of the MAgellanic Stellar History (SMASH)…

From the analysis of the color-magnitude diagrams and color functions of four wide LMC fields located from ~2 to 6 kpc from the kinematic center of the LMC we present evidence that, while the oldest population is coeval in all fields, the…

Astrophysics · Physics 2009-11-13 C. Gallart , P. B. Stetson , I. Meschin , F. Pont , E. Hardy

Drawing from the LEGA-C dataset, we present the spectroscopic view of the stellar population across a large volume- and mass-selected sample of galaxies at large lookback time. We measure the 4000\AA\ break (D$_n$4000) and Balmer absorption…

Using observations from the Hubble Space Telescope archive, color-magnitude diagrams (CMDs) have been constructed for globular cluster 4 in the Fornax dSph galaxy and its surrounding field. These diagrams extend below the main-sequence…

Astrophysics · Physics 2007-05-23 R. Buonanno , C. E. Corsi , M. Castellani , G. Marconi , F. Fusi Pecci , R. Zinn

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 investigate the stellar populations in a sample of 89 faint (M*+2 to M*+4) red galaxies in the Coma cluster, using high S/N spectroscopy from the MMT. Our sample is drawn from two 1-degree fields, one centred on the cluster core and the…