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

Details The NEAR-IR TRGB Magnitude and Distance Modulus to NGC 185 The NEAR-IR TRGB Magnitude and Distance Modulus to NGC 185

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jass...25..245s&link_type=abstract

Journal of Astronomy and Space Sciences. Vol. 25, no. 3, 245-248

Astronomy and Astrophysics

Astronomy

2

Trgb, Distance Modulus, Near-Infrared, Ngc 185

Scientific paper

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)=23.39±0.14, 23.23±0.22, and 23.27±0.26 for J, H, and K bands, respectively. Distance modulus in bolometric magnitude is also derived as (m-M)=23.62±0.12.

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