The evolution of the Tully-Fisher relation of spiral galaxies
Por:
Ziegler B.L., Böhm A., Fricke K.J., Jäger K., Nicklas H., Bender R., Drory N., Gabasch A., Saglia R.P., Seitz S., Heidt J., Mehlert D., Möllenhoff C., Noll S., Sutorius E.
Publicada:
1 ene 2002
Resumen:
We present the B-band Tully-Fisher relation (TFR) of 60 late-type galaxies with redshifts 0.1-1. The galaxies were selected from the FORS Deep Field with a limiting magnitude of R = 23. Spatially resolved rotation curves were derived from spectra obtained with FORS2 at the Very Large Telescope. High-mass galaxies with vmax ? 150 km s-1 show little evolution, whereas the least massive systems in our sample are brighter by ?1-2 mag compared with their local counterparts. For the entire distant sample, the TFR slope is flatter than for local field galaxies (-5.77 ± 0.45 vs. -7.92 ± 0.18). Thus, we find evidence for the evolution of the slope of the TFR with redshift on the 3 ? level. This is still true when we subdivide the sample into three redshift bins. We speculate that the flatter tilt of our sample is caused by the evolution of luminosities and an additional population of blue galaxies at z ? 02. The mass dependence of the TFR evolution also leads to variations for different galaxy types in magnitude-limited samples, suggesting that selection effects can account for the discrepant results of previous TFR studies on the luminosity evolution of late-type galaxies.
Filiaciones:
Ziegler B.L.:
Universitatssternwarte Gottingen, Geismarlandstrasse 11, 37083 Göttingen, Germany
Böhm A.:
Universitatssternwarte Gottingen, Geismarlandstrasse 11, 37083 Göttingen, Germany
Fricke K.J.:
Universitatssternwarte Gottingen, Geismarlandstrasse 11, 37083 Göttingen, Germany
Jäger K.:
Universitatssternwarte Gottingen, Geismarlandstrasse 11, 37083 Göttingen, Germany
Nicklas H.:
Universitatssternwarte Gottingen, Geismarlandstrasse 11, 37083 Göttingen, Germany
Bender R.:
Universitatssternwarte München, Scheinerstrasse 1, 81679 München, Germany
Drory N.:
Universitatssternwarte München, Scheinerstrasse 1, 81679 München, Germany
Gabasch A.:
Universitatssternwarte München, Scheinerstrasse 1, 81679 München, Germany
Saglia R.P.:
Universitatssternwarte München, Scheinerstrasse 1, 81679 München, Germany
Res. Sch. of Astron./Astrophysics, Australian National University, Cotter Road, Weston Creek, ACT 2611, Australia
Seitz S.:
Universitatssternwarte München, Scheinerstrasse 1, 81679 München, Germany
Heidt J.:
Landessternwarte Heidelberg, Königstuhl, 69117 Heidelberg, Germany
Mehlert D.:
Landessternwarte Heidelberg, Königstuhl, 69117 Heidelberg, Germany
Möllenhoff C.:
Landessternwarte Heidelberg, Königstuhl, 69117 Heidelberg, Germany
Noll S.:
Landessternwarte Heidelberg, Königstuhl, 69117 Heidelberg, Germany
Sutorius E.:
Landessternwarte Heidelberg, Königstuhl, 69117 Heidelberg, Germany
Royal Observatory Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, United Kingdom
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