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Star Formation History of Dwarfs in Nearby Galaxy Groups

Published online by Cambridge University Press:  01 December 2006

L. Makarova
Affiliation:
Special Astrophysical Observatory, Russia
D. Makarov
Affiliation:
Special Astrophysical Observatory, Russia
I. Karachentsev
Affiliation:
Special Astrophysical Observatory, Russia
A. Dolphin
Affiliation:
Steward Observatory, USA
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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1. The data. We study detailed star formation histories (SFH) of 14 dwarf galaxies in the central parts (≤ 300 Kpc) of the two nearby galaxy groups: M 81 (D=3.6 Mpc) and Cen A (D = 3.8 Mpc). The images of 7 galaxies were selected from the sample of about 50 nearby dwarf galaxies observed with the Advanced Camera for Surveys (ACS) at the Hubble Space Telescope within our prog. 9771 & 10235, (PI I.Karachentsev). The rest of the images (ACS and WFPC2) were taken from the Hubble Archive (prog. 9884, 5898 and 6964).

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2007