Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/55722

Title

Generalizations of the Tully-Fisher relation for early- and late-type galaxies

Author(s)

De Rijcke, Sven;  Zeilinger, Werner W.;  Hau, George K. T.;  Prugniel, P.;  Dejonghe, Herwig

Abstract

We study the locus of dwarf and giant early- and late-type galaxies on the Tully-Fisher relation (TFR), the stellar mass Tully-Fisher relation (sTFR), and the so-called baryonic or H I gas+stellar mass Tully-Fisher relation (gsTFR). We show that early-type and late-type galaxies, from dwarfs to giants, trace different yet approximately parallel TFRs. Surprisingly, early-type and late-type galaxies trace a single yet curved sTFR over a range of 3.5 orders of magnitude in stellar mass. Moreover, all galaxies trace a single, linear gsTFR, over 3.5 orders of magnitude in H I gas+stellar mass. Dwarf ellipticals, however, lie slightly below the gsTFR. This may indicate that early-type dwarfs, contrary to the late types, have lost their gas, e.g., by galactic winds or ram pressure stripping. Overall, environment only plays a secondary role in shaping these relations, making them a rather "clean" cosmological tool. ACDM simulations predict roughly the correct slopes for these relations.

Publication type

Journal article

Source

Astrophysical Journal, Vol. 659, no. 2 I (Apr 2007), pp. 1172-1175

Publication year

2007

FOR Code(s)

0201 Astronomical and Space Sciences

Keyword(s)

ACDM simulations;  Dwarf galaxies;  Early-type galaxies;  Galaxy kinematics and dynamics;  Galaxy structure;  Gas+stellar mass Tully-Fisher relation;  Giant galaxies;  gsTFR;  Late-type galaxies;  Stellar mass;  Stellar mass Tully-Fisher relation;  sTFR;  TFR;  Tully-Fisher relation

Publisher

University of Chicago Press

ISSN

0004-637X

Publisher URL

http://dx.doi.org/10.1086/512717

Copyright

Copyright © 2007. The American Astronomical Society. All rights reserved.

Peer reviewed