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arxiv: astro-ph/0412324 · v1 · submitted 2004-12-14 · 🌌 astro-ph

Calibrated Tully-Fisher relations for edge-on galaxies in the BVRI system

O. Stanchev (1) , P. Nedialkov (2) , Ts. Georgiev (1) ((1)Institute of Astronomy , Bulgarian Academy of Sciences , (2)Departament of Astronomy , Sofia University) This is my paper
classification 🌌 astro-ph
keywords edge-onrelationsbandscalibrateddistanceerrorsgalaxiesmagnitude
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Calibrated Tully-Fisher relations ''absolute magnitude - HI line width'' for spiral galaxies oriented edge-on are derived from published data. The slope of the linear fits, especially in R- and I- bands, is close to the value of -10, as predicted by the theory. The standard errors of the relations in B, V, R and I bands are 0.40, 0.36, 0.31 and 0.34 mag, corresponding to relative distance errors of 18%, 17%, 14% and 16%, respectively. The magnitude of an edge-on galaxy appears to be a good distance indicator.

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