The Near-IR TRGB Magnitude and Distance Modulus to NGC 185

Autor: Y.-J. Sohn, A. Kang, W. Han, J.-H. Park, H.-I. Kim, J.-W. Kim, I.-G. Shin, S.-H. Chun
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Journal of Astronomy and Space Sciences, Vol 25, Iss 3, Pp 245-248 (2008)
Druh dokumentu: article
ISSN: 2093-5587
2093-1409
DOI: 10.5140/JASS.2008.25.3.245
Popis: We determined values of distance modulus to nearby dwarf galaxy NGC 185 from the Tip of Red-Giant Branch (TRGB) method. Apparent magnitudes of the TRGB are estimated from the near-infrared JHK luminosity functions (LFs) of the resolved giant branch stars. Theoretical absolute magnitudes of the TRGB in near-infrared bands have been extracted from the Yonsei-Yale isochrones. The observed apparent and theoretical absolute magnitudes of the TRGB provide values of distance modulus to NGC 185 as (m - M).
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