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arXiv · 0711.4305

2MTF I. The Tully-Fisher Relation in the 2MASS J, H and K Bands

Karen L. Masters·Christopher M. Springob·John P. Huchra
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Abstract

The 2 Micron All-Sky Survey (2MASS) Tully-Fisher Survey (2MTF) aims to measure Tully-Fisher (TF) distances to all bright inclined spirals in the 2MASS Redshift Survey (2MRS). Essential to this project is a universal calibration of the TF relation in the 2MASS J (1.2 um), H (1.6 um) and K (2.2 um) bands. We present the first bias corrected or universal TF template in these bands. We find that the slope of the TF relation becomes steeper as the wavelength increases being close to L \propto v^4 in K-band and L \propto v^3.6 in J and H-bands. We also investigate the dependence on galaxy morphology showing that in all three bands the relation is steeper for later type spirals which also have a dimmer TF zeropoint than earlier type spirals. We correct the final relation to that for Sc galaxies. Finally we study the scatter from the TF relation fitting for a width dependent intrinsic scatter which is not found to vary significantly with wavelength.

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Karen L. Masters, Christopher M. Springob, John P. Huchra. 2014-04-10. 2MTF I. The Tully-Fisher Relation in the 2MASS J, H and K Bands. https://doi.org/10.1088/0004-6256/135/5/1738

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