EDP Sciences
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Volume 394, Number 1, October IV 2002
Page(s) 33 - 38
Section Extragalactic astronomy
DOI http://dx.doi.org/10.1051/0004-6361:20021016

A&A 394, 33-38 (2002)
DOI: 10.1051/0004-6361:20021016

Photometry of red giants in the disk of IC 1613

N. A. Tikhonov1, 2 and O. A. Galazutdinova1, 2

1  Special Astrophysical Observatory, Russian Academy of Sciences, N. Arkhyz, KChR 369167, Russia
2  Isaac Newton Institute of Chile, SAO Branch, Russia

(Received 27 September 1999 / Accepted 30 May 2002)

The results of photometry of disk stars in the galaxy IC 1613 are presented. The position of the red giant branch allowed us to measure the distance to the galaxy $(m-M)=24.53\pm0.10$, as well as metallicity ([Fe/H] = -1.75) and age $(\lg t\simeq10.1$) of disk stars. The variation of the surface density of red giants depending on the distance from the center of the galaxy has been found. Rough estimate of the total number of red giants in the galaxy and total disk mass are presented.

Key words: galaxies: individual: IC 1613 -- galaxies: photometry -- galaxies: stellar content

Offprint request: N. A. Tikhonov, ntik@sao.ru

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