Cinematica de sistemas interactuantes de tipo M51: Relacion de Tully-Fisher.

GUNTHARDT, G.; DIAZ, R.

Malargue, Argentina

Congreso; Reunion Anual de la AAA; 2007

Asociacion Argentina de Astronomia

We present heliocentric radial velocity distributionsof six M 51 type galaxies. Additionally we present Tully-Fisherrelations for M51-type systems from our kinematic catalog (Gunthardtet al. 2006, RMxAC, 26, 191) with the velocities determined fromH alpha and using B-band absolute magnitudes; we also consideredsystems with maximum velocities from HI 21 cm line. In both cases,we found shallower relations compared with nearby spiral galaxies,in agreement with the results found by Reshetnikov and Klimanov(2003, Astron. Lett. Vol. 29, N. 7, p. 429)