Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...155..283g&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 155, no. 2, Feb. 1986, p. 283-290.
Astronomy and Astrophysics
Astronomy
10
Centimeter Waves, Colorimetry, Distance, Radio Sources (Astronomy), Calibrating, Data Sampling, Radial Velocity, Spectral Line Width, Statistical Correlation
Scientific paper
The distance moduli derived from the B-band version of the Tully-Fisher relations, μ0W(VM), are compared with those derived from the H-band version μ0(W). It has been shown that: (1) the difference μ0W(VM)-μ0(W) in the Bottinelli et al., catalogue depends on the hybrid color BT0-H-0.5c. (2) For the sample the distance moduli would not be color dependent if the difference in slope between the B and H Tully-Fisher relation is larger than 5.4, which is the mean slope of the [BT0-H-0.5c, log Wc(0)] color relation. (3) The differences in slope between the B and H Tully-Fisher relation (first-sided, second-sided, and mean regressions) for that sample do not support such a condition. (4) The distance moduli derived in the V(5500 Å) and IV(10500 Å) bands from Visvanathan are also color-dependent.
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