The metal homogeneity of the globular star cluster M5

Details The metal homogeneity of the globular star cluster M5 The metal homogeneity of the globular star cluster M5

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.307..789h&link_type=abstract

Monthly Notices, Volume 307, Issue 4, pp. 789-801.

Computer Science

2

Scientific paper

This work is concerned with the precision measurement of the magnitudes of the stars across a large field of the galactic globular cluster M5. The colours of the red giants are subjected to a thorough statistical analysis in order to quantify the extent of any star-to-star variations in metal abundance within the cluster. Use is made of an extensive optical/near-infrared observational data set acquired with a large-array CCD detector and the Johnson V and I filters. The results of this photometry, which is accurate to within a few millimagnitudes for the brighter stars, are used to compile a colour-magnitude diagram. The analysis finds that in a metal-rich M5 ([Fe/H]=-1.2) the extent of any metal inhomogeneity, Delta[Fe/H], is less than +/-0.1dex, and in a metal-poor M5 ([Fe/H]=-1.5) then Delta[Fe/H] <= -0.15 +0.12 dex. (The literature contains a range of derived values of metallicity for M5.)

Affiliated with

Also associated with

No associations

Rating

The metal homogeneity of the globular star cluster M5 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 The metal homogeneity of the globular star cluster M5, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The metal homogeneity of the globular star cluster M5 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1269969