CCD PHOTOMETRY OF CLUSTER 1 OF FORNAX

CCD PHOTOMETRY OF CLUSTER 1 OF FORNAX

A color, magnitude diagram of Cluster 1 in Fornax is presented. From the morphology of the CMD, we conclude that the cluster is metal poor. Its distance, estimated from the apparent magnitude of its horizontal branch, is (m -M )v = 20.76 or 132 kpc for E (B -V) = 0.05, comparable to previously estim...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Publications of the Astronomical Society of the Pacific 1990-06, Vol.102 (652), p.632-638
Hauptverfasser: DEMERS, SERGE, KUNKEL, W. E., GRONDIN, LUC
Format: Artikel
Sprache:eng
Schlagworte:
AGE ESTIMATION
Apparent magnitude
Astronomical magnitude
Astronomy
BRIGHTNESS
Calibration
CHARGE-COUPLED DEVICES
CHEMICAL COMPOSITION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Coefficients
COLOR
Earth, ocean, space
Exact sciences and technology
GALACTIC EVOLUTION
GALAXIES
Giant branches
Globular clusters in external galaxies
Globular star clusters
Horizontal branch stars
Metal abundance
Milky Way Galaxy
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHOTOMETRY
PHYSICAL PROPERTIES
SEMICONDUCTOR DEVICES 640102 > Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources
STAR CLUSTERS
Stellar Clusters and Associations
Stellar systems. Galactic and extragalactic objects and systems. The universe
Variable stars
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A color, magnitude diagram of Cluster 1 in Fornax is presented. From the morphology of the CMD, we conclude that the cluster is metal poor. Its distance, estimated from the apparent magnitude of its horizontal branch, is (m -M )v = 20.76 or 132 kpc for E (B -V) = 0.05, comparable to previously estimated distances of Fornax. Cluster 1 belongs to the class of metal-poor systems having a red horizontal branch. If interpreted in terms of an age effect, we conclude that Cluster 1 is an intermediate-age cluster possibly formed when the numerous intermediate-age population of Fornax was formed.
ISSN:0004-6280
1538-3873
DOI:10.1086/132682