Starburst modeling of M82 - Test case for a biased initial mass function

Statistics – Computation

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

253

Astronomical Models, Star Formation, Starburst Galaxies, Abundance, Bias, Computational Astrophysics, Solar Neighborhood, Stellar Mass, Supernovae

Scientific paper

We compute starburst models for M82, making use of recent theoretical tracks of stellar evolution. Detailed comparisons of our models and those of others demonstrate this technique to be quite reliable, with relatively little change in output parameters as a function of the selection of theoretical tracks or of estimates of the observational characteristics of the stars along these tracks. The models are matched to the observational constraints for M82 summarized by McLeod et al. (1993). The rate of star formation and time of observation were thoroughly optimized to produce the most favorable fit to the observations, but we still found that the recently proposed forms for the solar-neighborhood IMF cannot produce starbursts adequate to fit the observations of this galaxy. We then explored adjustments to the shape of the IMF to improve the fit to M82. We find (1) the shape of the IMF for high-mass stars need not be different from that observed locally; and (2) the most likely modification to the IMF in M82 is that stars with masses below a few solar masses form much less commonly than in the solar neighborhood.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Starburst modeling of M82 - Test case for a biased initial mass function 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 Starburst modeling of M82 - Test case for a biased initial mass function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Starburst modeling of M82 - Test case for a biased initial mass function will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1069631

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.