Bibcode
Allard, Emma L.; Peletier, Reynier F.; Knapen, Johan H.
Referencia bibliográfica
Starbursts: From 30 Doradus to Lyman Break Galaxies, Held in Cambridge, UK, 6-10 September 2004. Edited by R. de Grijs and R.M. González Delgado. Astrophysics & Space Science Library, Vol. 329. Dordrecht: Springer, 2005, p.P1
Advertised on:
5
2005
Número de citas
0
Número de citas referidas
0
Descripción
We have obtained integral-field spectroscopic data, using the SAURON
instrument, of the bar and starbursting circumnuclear region in the
barred spiral galaxy M100. From our data, we have derived kinematic maps
of the mean velocity and velocity dispersion of the stars and the gas,
which we present here. We have also produced maps of the total, [O III],
and Hβ intensity. The gas velocity field shows significant
kinematic signatures of gas streaming along the inner part of the bar,
and of density wave streaming motions across the miniature spiral arms
in the nuclear pseudo-ring. The stellar velocity field shows similar
non-circular motions. The gas velocity dispersion is notably smaller
where the star formation occurs in the nuclear zone and H II regions.