An empirical tool to derive metallicity, reddening and distance for old stellar populations from near IR Color Magnitude Diagrams

Details An empirical tool to derive metallicity, reddening and distance for old stellar populations from near IR Color Magnitude Diagrams An empirical tool to derive metallicity, reddening and distance for old stellar populations from near IR Color Magnitude Diagrams

2006-05-19

arxiv.org/abs/astro-ph/0605492v1

Astrophys.J.649:243-247,2006

Astronomy and Astrophysics

Astrophysics

16 pages, 4 figures, accepted for pubblication on ApJ

Scientific paper

10.1086/506013

We present an empirical method to derive photometric metallicity, reddening and distance to old stellar populations by using a few major features of the Red Giant Branch (RGB) in near IR color magnitude diagrams. We combine the observed RGB features with a set of equations linking the global metallicity [M/H] to suitable RGB parameters (colors, magnitudes and slope), as calibrated from a homogeneous sample of Galactic Globular Clusters with different metallicities. This technique can be applied to efficiently derive the main population parameters of old stellar systems, in the view of using ground-based adaptive optics and space facilities to probe the stellar content of remote galaxies.

Affiliated with

Also associated with

No associations

Rating

An empirical tool to derive metallicity, reddening and distance for old stellar populations from near IR Color Magnitude Diagrams 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 An empirical tool to derive metallicity, reddening and distance for old stellar populations from near IR Color Magnitude Diagrams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An empirical tool to derive metallicity, reddening and distance for old stellar populations from near IR Color Magnitude Diagrams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-353032