ICATE 21876
INSTITUTO DE CIENCIAS ASTRONOMICAS, DE LA TIERRA Y DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
Cinemática global y distribución radial de propiedades espectrofotométricas de NGC 253
Autor/es:
CAMPERI, J. A.; GUNTHARDT, G. I.; DÍAZ, R. J.; AGUERO, M. P.; GIMENO, G.; PESSEV, P.
Revista:
Boletín de la Asociación Argentina de Astronomía
Editorial:
Asociación Argentina de Astronomía
Referencias:
Año: 2011 vol. 54 p. 377 - 380
ISSN:
1669-9521
Resumen:
NGC 253 is a nearby spiral galaxy and it presents a burst of violent star formation in its nucleus. Recently it has been postulated that the central region harbors a supermassive black hole outside the kinematic and geometric center of the galaxy. In order to establish the boundary conditions for a model describing the relationship between the decentered massive object and the secular evolution of the galaxy?s central region, we plan to study the radial distribution of stellar mass in the galaxy and the location of resonances affecting the gas flows toward the center. As part of this study we present the preliminary results of the radial velocity distributions along four directions, which include the major axis and minor axis of the galaxy, and near-IR observations made with the Phoenix instrument of the Gemini Observatory.
