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Photometric properties of Local Volume dwarf galaxies
M. E. Sharina, I. D. Karachentsev, A. E. Dolphin +9
We present surface photometry and metallicity measurements for 104 nearby dwarf galaxies imaged with the Advanced Camera for Surveys and Wide Field and Planetary Camera 2 aboard th…
Mining the Local Volume
Igor D. Karachentsev, Valentina Karachentseva, Walter Huchtmeier +3
After recent systematic optical, IR, and HI surveys, the total number of known galaxies within 10 Mpc has increased from 179 to 550. About half this Local Volume (LV) sample is now…
Evolution of dwarf galaxies in the Centaurus A group
L. Makarova, D. Makarov
We consider star formation properties of dwarf galaxies in Cen A group observed within our HST/ACS projects number 9771 and 10235. We model color-magnitude diagrams of the galaxies…
Tip of the Red Giant Branch Distances. II. Zero-Point Calibration
Luca Rizzi, R. Brent Tully, Dmitry Makarov +4
The luminosity of the Tip of the Red Giant Branch (TRGB) provides an excellent measure of galaxy distances and is easily determined in the resolved images of nearby galaxies observ…
Associations of Dwarf Galaxies
R B Tully, L Rizzi, A E Dolphin +6
Hubble Space Telescope Advanced Cameras for Surveys has been used to determine accurate distances for 20 galaxies from measurements of the luminosity of the brightest red giant bra…
Tip of the Red Giant Branch Distances. I. Optimization of a Maximum Likelihood Algorithm
Dmitry Makarov, Lidia Makarova, Luca Rizzi +4
Accurate distances to galaxies can be determined from the luminosities of stars at the Tip of the Red Giant Branch (TRGB). We use a Maximum Likelihood algorithm to locate the TRGB…