Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997cha%26a..21..285x&link_type=abstract
Chinese Astronomy and Astrophysics, Volume 21, Issue 3, p. 285-295.
Astronomy and Astrophysics
Astrophysics
Scientific paper
We construct a model of population synthesis using the new stellar isochrones calculated by Bertelli et al. and the observed stellar spectrum from 3130Å to 10800Å by Gunn and Stryker. Our model can predict the spectral energy distribution (SED) of a Simple Stellar Population (SSP) from an age of 107 to 2 × 1010 yr with metallicities from Z = 0.0004 to Z = 0.05, covering the whole optical range. The SED of galaxies at different ages can be derived as a convolution of SSP with corresponding star formation rate at different times. We calculate the standard UBVRI colors as well as 15 medium-band BATC colors for the synthesized SSPs and galaxies. The predicted UBVRI colors of galaxies from E/S0 to Sdm at the age of 12 Gyr are in good agreement with the current observations. So we have some confidence that our model predictions may serve as a theoretical guide for the ongoing multicolor observational study of the SEDs of galaxies.
Chen Jian-Sheng
Xu Wen
Yu Yun-Qiang
Zhang Mei
Zhou Xu
No associations
LandOfFree
A model of population synthesis and the color evolution of galaxies 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 A model of population synthesis and the color evolution of galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A model of population synthesis and the color evolution of galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1778357