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Star Formation History of the Dwarf Galaxies in the Centaurus A Group

Published online by Cambridge University Press:  01 August 2006

L. Makarova ,
D. Makarov ,
A. Dolphin ,
I. Karachentsev ,
B. Tully ,
S. Sakai ,
E. Shaya ,
L. Rizzi ,
M. Sharina  and
V. Karachentseva
L. Makarova
Affiliation:
Special Astrophysical Observatory, Russia
D. Makarov
Affiliation:
Special Astrophysical Observatory, Russia
A. Dolphin
Affiliation:
Steward Observatory, USA
I. Karachentsev
Affiliation:
Special Astrophysical Observatory, Russia
B. Tully
Affiliation:
IfA, Univ. of Hawaii, USA
S. Sakai
Affiliation:
Univ. Of California, Los Angeles, USA
E. Shaya
Affiliation:
Univ of Maryland, USA
L. Rizzi
Affiliation:
IfA, Univ. of Hawaii, USA
M. Sharina
Affiliation:
Special Astrophysical Observatory, Russia
V. Karachentseva
Affiliation:
Astronomical Observatory of Kiev, Ukraine
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We derive quantitative star formation histories (SFH) of the two dwarf spheroidal (KK 197 and ESO 269-066) and one dwarf irregular (ESO 381-018) galaxies in the nearby Centaurus A group. The data are part of our sample of about 50 nearby dwarf galaxies observed with the Advanced Camera for Surveys (ACS) at the Hubble Space Telescope (prog. 9771 & 10235, PI I.Karachentsev). Deep color-magnitude diagram (CMD) of KK 197 is shown in Fig.1.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 320
Copyright
Copyright © International Astronomical Union 2007