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| Paper: |
How Star-Formation Rate Indicators Vary with Methods of Sampling the IMF and Duplicity |
| Volume: |
440, UP2010: Have Observations Revealed a Variable Upper End of the Initial Mass Function? |
| Page: |
217 |
| Authors: |
Eldridge, J. J. |
| Abstract: |
Using our new Binary Population and Spectral Synthesis (BPASS) code we
explore the effect of binary populations on the integrated spectra of
galaxies. We also explore the interplay of binary populations and a
varying maximum stellar mass. We compare our synthetic populations to
observations of Hα emission from isolated clusters and
Hα and FUV observations of galaxies. We find that observations
tend to favour a pure stochastic sampling of the initial mass function
although the evidence is not significant. We also find that binaries
make a stellar population less susceptible to the stochastic effects
of filling the IMF, therefore making it more difficult to determine if
there is a variable maximum stellar mass. |
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