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astro-ph.CO2013★ 17 cited
Non-Axisymmetric Structure in the Satellite Dwarf Galaxy NGC2976: Implications for its Dark/Bright Mass Distribution and Evolution
O. Valenzuela, H. Hernández-Toledo, M. Cano-Díaz +4
We present the result of an extensive search for non-axisymmetric structures in the dwarf satellite galaxy of M81: NGC 2976, using multiwavelength archival observations. The galaxy…
astro-ph.GA2013★ 80 cited
On the galaxy spiral arms' nature as revealed by rotation frequencies
Santi Roca-Fàbrega, Octavio Valenzuela, Francesca Figueras +4
High resolution N-body simulations using different codes and initial condition techniques reveal two different behaviours for the rotation frequency of transient spiral arms like s…