The metallicity of the old open cluster NGC 6791

Details The metallicity of the old open cluster NGC 6791 The metallicity of the old open cluster NGC 6791

2006-01-02

arxiv.org/abs/astro-ph/0601027v1

Astrophys.J. 642 (2006) 462-469

Astronomy and Astrophysics

Astrophysics

In press on ApJ

Scientific paper

10.1086/500729

We have observed four red clump stars in the very old and metal-rich open cluster NGC 6791 to derive its metallicity, using the high resolution spectrograph SARG mounted on the TNG. Using a spectrum synthesis technique we obtain an average value of [Fe/H] = +0.47 (+/- 0.04, rms=0.08) dex. Our method was tested on mu Leo, a well studied metal-rich field giant. We also derive average oxygen and carbon abundances for NGC 6791 from synthesis of [O I] at 6300 A and C_2 at 5086 A, finding [O/Fe] =~ -0.3 and [C/Fe] =~ -0.2.

Affiliated with

Also associated with

No associations

Rating

The metallicity of the old open cluster NGC 6791 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 metallicity of the old open cluster NGC 6791, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The metallicity of the old open cluster NGC 6791 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-40672