Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...283..805b&link_type=abstract
Astronomy and Astrophysics, Vol. 283, NO. 3/MAR(III), P. 805, 1994
Astronomy and Astrophysics
Astrophysics
41
Scientific paper
We study integrated spectra of 37 star clusters in the range 3100 - 4200 A . The sample includes Galactic globular and open clusters, as well as Magellanic Cloud clusters. Feature equivalent widths (W)and continuum distribution are analyzed as a function of age and metallicity. In particular we discuss the behaviour of the Balmer Jump and of the 4000 A Break, which are measured by the same continuum ratio C3660 A / C4020 A. For ages t < 500 Myr the Balmer Jump is dominant over the 4000 A Break and for t < 50 Myr it is an excellent age discriminator. The effects of blue Horizontal Branch morphology on globular cluster spectra are also discussed: they increase the Balmer line W, but do not dilute substantially the Near-UV metallic features. The present data will provide a means to connect optical to W integrated star cluster spectra, with important applications in stellar population analyses, in particular for distant galaxies at redshift up to 1.
Alloin Danielle
Bica Eduardo
Schmitt Henrique R.
No associations
LandOfFree
Integrated Spectral Properties of Star Clusters in the Near Ultraviolet 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 Integrated Spectral Properties of Star Clusters in the Near Ultraviolet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated Spectral Properties of Star Clusters in the Near Ultraviolet will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1870108