DDO photometry of giants in the open cluster IC 4651
DDO photometry has been obtained for 14 stars in the open cluster IC 4651. The reddening and distance modulus derived from these data are in good agreement with the results obtained from UBV photometry by Eggen. The cluster appears to have a heavy-element abundance slightly less than that of the Hyades, although one giant shows an anomalously strong lambda4216 CN band comparable to those seen in the SMR giants. A comparison is made between this star and CN-enhanced giants in eight other open clusters. It is suggested that the CN-strong phenomenon among open cluster giants is the result of nonstandard stellar evolution, the occurrence of which is supported by the presence of blue stragglers in five out of the eight comparison clusters, as well as in IC 4651 itself.
- Research Organization:
- Mount Stromlo and Siding Spring Observatories, Research School of Physical Sciences, Australian National University, Private Bag, Woden Post Office, Australian Capital Territory 2606, Australia
- OSTI ID:
- 5609776
- Journal Information:
- Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 87:2; ISSN ANJOA
- Country of Publication:
- United States
- Language:
- English
Similar Records
DDO and UBV photometry of red giant stars in NGC 6791
DDO photometry of the open cluster IC 4756
BV photographic and CCD photometry of IC 4651
Journal Article
·
Fri Nov 30 23:00:00 EST 1984
· Publ. Astron. Soc. Pac.; (United States)
·
OSTI ID:5703645
DDO photometry of the open cluster IC 4756
Journal Article
·
Sun May 01 00:00:00 EDT 1983
· Publ. Astron. Soc. Pac.; (United States)
·
OSTI ID:6403682
BV photographic and CCD photometry of IC 4651
Journal Article
·
Sun May 01 00:00:00 EDT 1988
· Astron. J.; (United States)
·
OSTI ID:7188686