Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006newar..49..536c&link_type=abstract
New Astronomy Reviews, Volume 49, Issue 10-12, p. 536-546.
Astronomy and Astrophysics
Astronomy
1
Scientific paper
OASIS observations obtained at the Canada France Hawaii Telescope for the spiral galaxies NGC 4900 and NGC 5430 produce one spectrum for each 0.41″ element of the 11″ × 15″ field of view. This allows for the spatial characterisation of the different stellar populations. From these observations we study the young (⩽10 Myr) and older stellar populations using evolutionary synthesis codes. Based on the gas emission lines, we find that the young populations are located in relatively small regions and dominate the integrated flux. In NGC 4900, the young populations are distributed in a bar-like structure featuring a hole near the position of the galaxy’s centre. The young stellar populations of NGC 5430 form a nuclear ring and two patches at the base of the spiral arms. Based on Mg2 and FeI absorption lines, we find that in both galaxies, the young stars are superimposed on a relatively homogenous population of a few Gyr.
Cantin Simon
Mollá Mercedes
Pellerin Anne
Robert Carmelle
No associations
LandOfFree
Stellar populations in barred spirals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Stellar populations in barred spirals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar populations in barred spirals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-796270