Bibcode
Peletier, R. F.; Balcells, M.
Referencia bibliográfica
NICMOS and the VLT: A New Era of High Resolution Near Infrared Imaging and Spectroscopy, Pula, Sardinia, Italy, June 26-27th 1998 ESO Conference and Workshop Proceedings 55, 1998, Wolfram Freudling and Richard Hook eds.,p.162
Advertised on:
7
1998
Número de citas
0
Número de citas referidas
0
Descripción
We describe multi-color observations with NICMOS and WFPC2 of 20 nuclei
of nearby galactic bulges of types S0-Sbc. We find that the centers of
19 out of 20 bulges are found to be dusty, with average extinction A_V
between 0.6 and 0.9 mag. Our second result is that the stellar
populations of galactic bulges of type S0-Sb show a very tight B-I vs.
I-H relation, suggesting that the age spread among bulges of early-type
spirals is small (at most about 2-3 Gyr).