scholarly journals The Globular Cluster M54 and the Star Formation History of the Sagittarius Dwarf Galaxy

1997 ◽  
Vol 486 (2) ◽  
pp. L107-L110 ◽  
Author(s):  
Andrew C. Layden ◽  
Ata Sarajedini
Keyword(s):  
Star Formation ◽  
Globular Cluster ◽  
Dwarf Galaxy ◽  
Star Formation History ◽  
Formation History ◽  
History Of

The Star Formation History of the Local Group Dwarf Galaxy Leo I

1999 ◽  
Vol 118 (5) ◽  
pp. 2245-2261 ◽  
Author(s):  
Carme Gallart ◽  
Wendy L. Freedman ◽  
Antonio Aparicio ◽  
Giampaolo Bertelli ◽  
Cesare Chiosi
Keyword(s):  
Star Formation ◽  
Local Group ◽  
Dwarf Galaxy ◽  
Star Formation History ◽  
Formation History ◽  
History Of

scholarly journals The star formation history of the Fornax dwarf spheroidal galaxy

2009 ◽  
Vol 5 (S262) ◽  
pp. 353-354
Author(s):  
Enrico V. Held ◽  
Eline Tolstoy ◽  
Luca Rizzi ◽  
Mary Cesetti ◽  
Andrew A. Cole ◽  
...  
Keyword(s):  
Star Formation ◽  
Galaxy Evolution ◽  
Stellar Population ◽  
Main Sequence ◽  
Dwarf Galaxy ◽  
Star Formation History ◽  
Stellar Content ◽  
Formation History ◽  
First Results ◽  
History Of

AbstractWe present the first results of a comprehensive HST study of the star-formation history of Fornax dSph, based on WFPC2 imaging of 7 Fornax fields. Our observations reach the oldest main-sequence turnoffs, allowing us to address fundamental questions of dwarf galaxy evolution, such as the spatial variations in the stellar content, and whether the old stellar population is made up of stars formed in a very early burst or the result of a more continuous star formation.

scholarly journals The Star Formation History of the Carina Dwarf Galaxy

1998 ◽  
Vol 115 (5) ◽  
pp. 1840-1855 ◽  
Author(s):  
Denise Hurley-Keller ◽  
Mario Mateo ◽  
James Nemec
Keyword(s):  
Star Formation ◽  
Dwarf Galaxy ◽  
Star Formation History ◽  
Formation History ◽  
History Of

scholarly journals Star Formation History in the Fornax Dwarf Galaxy from HST data

1999 ◽  
Vol 192 ◽  
pp. 174-178 ◽  
Author(s):  
G. Marconi ◽  
R. Buonanno ◽  
M. Castellani ◽  
C. E. Corsi ◽  
R. Zinn
Keyword(s):  
Star Formation ◽  
Globular Cluster ◽  
Main Sequence ◽  
Dwarf Galaxy ◽  
Hubble Space Telescope ◽  
Global Analysis ◽  
Stellar Populations ◽  
Star Formation History ◽  
A Value ◽  
Formation History

Using observations from the Hubble Space Telescope archive, color-magnitude diagrams have been constructed for globular Cluster 4 in the Fornax dSph galaxy and its surrounding field. These diagrams extend below the main-sequence turnoffs and have yielded measurements of the ages of the populations. In particular, from our analysis Cluster 4 shows [Fe/H] ≃ 2.0, a value significantly lower than that derived for the Fornax field ([Fe/H] ≃ −1.40). Putting our results in the frame of the findings of Buonanno et al. (1998) for the Fornax clusters 1, 2, 3 and 5, a global analysis of the properties of Fornax stellar populations has been performed.

scholarly journals The Star Formation History of Phoenix Dwarf Galaxy using IAC-pop Algorithm

2006 ◽  
Vol 2 (S241) ◽  
Author(s):  
Sebastian L. Hidalgo ◽  
Antonio Aparicio ◽  
David Martínez-Delgado
Keyword(s):  
Star Formation ◽  
Dwarf Galaxy ◽  
Star Formation History ◽  
Formation History ◽  
History Of

scholarly journals STELLAR POPULATIONS AND STAR FORMATION HISTORY OF THE METAL-POOR DWARF GALAXY DDO 68

2016 ◽  
Vol 830 (1) ◽  
pp. 3 ◽  
Author(s):  
E. Sacchi ◽  
F. Annibali ◽  
M. Cignoni ◽  
A. Aloisi ◽  
T. Sohn ◽  
...  
Keyword(s):  
Star Formation ◽  
Dwarf Galaxy ◽  
Stellar Populations ◽  
Star Formation History ◽  
Formation History ◽  
History Of

scholarly journals The Star Formation History of the Blue Compact Dwarf Galaxy UGCA 290

2002 ◽  
Vol 567 (1) ◽  
pp. 258-276 ◽  
Author(s):  
Mary M. Crone ◽  
Regina E. Schulte‐Ladbeck ◽  
Laura Greggio ◽  
Ulrich Hopp
Keyword(s):  
Star Formation ◽  
Dwarf Galaxy ◽  
Star Formation History ◽  
Formation History ◽  
History Of ◽  
Blue Compact Dwarf Galaxy

scholarly journals Cluster Distances using δ Sct Stars; Oscillating Blue Stragglers in ω Cen

2002 ◽  
Vol 207 ◽  
pp. 138-139
Author(s):  
L.M. Freyhammer ◽  
Jørgen Otzen Petersen
Keyword(s):  
Spatial Distribution ◽  
Star Formation ◽  
Globular Cluster ◽  
Stellar Populations ◽  
Star Formation History ◽  
Blue Stragglers ◽  
Formation History ◽  
Oscillation Modes ◽  
Different Ages ◽  
History Of

The complicated star formation history of the most massive globular cluster in our Galaxy — ω Centauri — is seen as a presence of an asymmetric spatial distribution of two stellar populations having different ages and metallicities. The cluster hosts the largest known sample of Population II δ Sct variables, or SX Phœnicis stars, which are valuable Galactic and extragalactic distance estimators. We discuss the applicability of these variables for estimating distances to the cluster, and compare different techniques for the critical identifications of oscillation modes.

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