TY - JOUR
T1 - Dark matter haloes in interacting isolated galaxy pairs
T2 - The importance of the Hα rotation curve
AU - Fuentes-Carrera, Isaura
AU - Amram, Philippe
AU - Rosado, Margarita
PY - 2002
Y1 - 2002
N2 - We present Hα scanning Fabry-Perot observations of the interacting galaxy pair NGC 3893/96 (Kar 302), an M51-type galaxy pair. The velocity field and rotation curve of the main galaxy (NGC 3893) were derived. These show the galaxy follows a rather axisymmetric behaviour. Together with HI observations, several mass models were adjusted in order to study the nature of the dark halo as well as the mass-to-light ratio of the galaxy. We find that in order to constrain these models, it is important to have a high resolution Hα rotation curve for the inner parts of the galaxy.
AB - We present Hα scanning Fabry-Perot observations of the interacting galaxy pair NGC 3893/96 (Kar 302), an M51-type galaxy pair. The velocity field and rotation curve of the main galaxy (NGC 3893) were derived. These show the galaxy follows a rather axisymmetric behaviour. Together with HI observations, several mass models were adjusted in order to study the nature of the dark halo as well as the mass-to-light ratio of the galaxy. We find that in order to constrain these models, it is important to have a high resolution Hα rotation curve for the inner parts of the galaxy.
UR - http://www.scopus.com/inward/record.url?scp=0141681876&partnerID=8YFLogxK
U2 - 10.1023/A:1019591113364
DO - 10.1023/A:1019591113364
M3 - Artículo
SN - 0004-640X
VL - 281
SP - 411
EP - 414
JO - Astrophysics and Space Science
JF - Astrophysics and Space Science
IS - 1-2
ER -