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Search: authors:"L. N. Makarova"

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CCD imaging of twenty nearby isolated irregular galaxies

We present B, V and I CCD stellar photometry for a sample of 20 field irregular dwarf galaxies. Their corrected radial velocity is 500 km s-1. Most of them have been resolved into stars for the first time. Based on photometry of their brightest blue stars we have derived the following distances: 5.9 Mpc (UGC 685), 5.4 Mpc (UGC 1281), 7.2 Mpc (UGC 3303), 7.0 Mpc (UGC 3476), 7.3...

CCD imaging of twenty nearby isolated irregular galaxies

We present B, V and I CCD stellar photometry for a sample of 20 field irregular dwarf galaxies. Their corrected radial velocity is 500 km s-1. Most of them have been resolved into stars for the first time. Based on photometry of their brightest blue stars we have derived the following distances: 5.9 Mpc (UGC 685), 5.4 Mpc (UGC 1281), 7.2 Mpc (UGC 3303), 7.0 Mpc (UGC 3476), 7.3...

Cam A: a new dwarf low-surface-brightness galaxy on the Local Group outskirts?

We present a deep I-band image of the nearby dwarf irregular galaxy Cam A obtained with the Nordic Optical Telescope with 0.6-arcsec seeing (FWHM). The distance to Cam A, DMW=1.9 Mpc, is estimated from the tip of the red giant branch seen at I=22.8±0.2 mag. The youngest stellar population of the galaxy seems to be of age about 100 Myr. Relying on its barycentric distance, DLG=1.6...

Photometric properties of the Local Volume dwarf galaxies*

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 the Hubble Space Telescope. In addition, we carried out photometry for 26 galaxies of the sample and for Sextans B on images of the Sloan Digital Sky Survey. Our sample comprises dwarf spheroidal...