High resolution infrared spectra of NGC 6342 and NGC 6528: two moderately reddened Bulge Globular Clusters

Details High resolution infrared spectra of NGC 6342 and NGC 6528: two moderately reddened Bulge Globular Clusters High resolution infrared spectra of NGC 6342 and NGC 6528: two moderately reddened Bulge Globular Clusters

2004-10-21

arxiv.org/abs/astro-ph/0410519v1

Mon.Not.Roy.Astron.Soc. 356 (2005) 1276-1282

Astronomy and Astrophysics

Astrophysics

8 pages, 5 figures, accepted by MNRAS

Scientific paper

10.1111/j.1365-2966.2004.08529.x

Using the NIRSPEC spectrograph at Keck II, we have obtained infrared echelle spectra covering the range 1.5-1.8 micron for the moderately reddened bulge globular clusters NGC 6342 and NGC 6528, finding [Fe/H]= -0.60 and -0.17 dex, respectively. We measure an average alpha-enhancement of approx +0.33 dex in both clusters, consistent with previous measurements on other metal rich bulge clusters, and favoring the scenario of a rapid bulge formation and chemical enrichment. We also measure very low 12C/13C isotopic ratios (approx 5 in NGC 6342 and approx 8 in NGC 6528), suggesting that extra-mixing mechanisms due to cool bottom processing are at work during evolution along the Red Giant Branch.

Affiliated with

Also associated with

No associations

Rating

High resolution infrared spectra of NGC 6342 and NGC 6528: two moderately reddened Bulge Globular Clusters 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 High resolution infrared spectra of NGC 6342 and NGC 6528: two moderately reddened Bulge Globular Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High resolution infrared spectra of NGC 6342 and NGC 6528: two moderately reddened Bulge Globular Clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-227581