GalevNB: a conversion from iV-body simulations to observations
Pang Xiaoying1; Olczak Christoph1; Guo Difeng1; Spurzem Rainer1; Kotulla Ralf2
Source PublicationResearch in Astronomy and Astrophysics
AbstractWe present GalevNB (Galev for N-body simulations), a utility that converts fundamental stellar properties of AT-body simulations into observational properties using the GALEV (GAlaxy Evolutionary synthesis models) package, and allowing direct comparisons between observations and N-body simulations. It works by converting fundamental stellar properties, such as stellar mass, temperature, luminosity and metallicity into observational magnitudes for a variety of filters used by mainstream instruments/telescopes, such as HST, ESO, SDSS, 2MASS, etc., and into spectra that span the range from far-UV (90 A) to near-IR (160 |xm). As an application, we use GalevNB to investigate the secular evolution of the spectral energy distribution (SED) and color magnitude diagram (CMD) of a simulated star cluster over a few hundred million years. With the results given by GalevNB we discover a UV-excess in the SED of the cluster over the whole simulation time. We also identify four candidates that contribute to the FUV peak: core helium burning stars, second asymptotic giant branch (AGB) stars, white dwarfs and naked helium stars.
Keywordstars: kinematics and dynamics stars: C-M diagrams stars: AGB and post-AGB stars:white dwarf
Document Type期刊论文
2.Department of Astronomy, University of Wisconsin - Madison
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Pang Xiaoying,Olczak Christoph,Guo Difeng,et al. GalevNB: a conversion from iV-body simulations to observations[J]. Research in Astronomy and Astrophysics,2016,16(3):37.
APA Pang Xiaoying,Olczak Christoph,Guo Difeng,Spurzem Rainer,&Kotulla Ralf.(2016).GalevNB: a conversion from iV-body simulations to observations.Research in Astronomy and Astrophysics,16(3),37.
MLA Pang Xiaoying,et al."GalevNB: a conversion from iV-body simulations to observations".Research in Astronomy and Astrophysics 16.3(2016):37.
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