A deep luminosity function of the globular cluster M13

Mathematics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

61

Globular Clusters, Metallicity, Stellar Luminosity, Stellar Mass, Brown Dwarf Stars, Charge Coupled Devices, Covariance, Dwarf Stars, Matrices (Mathematics)

Scientific paper

The luminosity function in a field of M13 at 14 core radii has been observed to M(V) = +12.0, and new theoretical, low-mass, stellar models appropriate to M13 are used to convert the function to a mass function which extends to M = 0.18 solar, within a factor of two of brown dwarf masses at this metal abundance. As the number of stars observed in each magnitude bin is still increasing at the limit of the data, the presence of stars with masses lower than 0.18 solar is probable. This result sets an upper limit of 0.18 solar mass for low-mass cutoffs in dynamical models of M13. No single power law mass function fits all the observations. The trend of the data supports the idea of a steep increase in the slope of the mass function for M less than 0.4 solar. The results imply that the total mass in low-mass stars in M13, and by implication elsewhere, is higher than was previously thought.

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

A deep luminosity function of the globular cluster M13 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 deep luminosity function of the globular cluster M13, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A deep luminosity function of the globular cluster M13 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-853754

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