THE GLOBULAR CLUSTER NGC 6402 (M14). I. A NEWBVCOLOR-MAGNITUDE DIAGRAM
نویسندگان
چکیده
منابع مشابه
The Globular Cluster Ngc 5286. I. a New Ccd Bv Color-magnitude Diagram *
We present BV photometry of the Galactic globular cluster NGC 5286, based on 128 V frames and 133 B frames, and covering the entire face of the cluster. Our photometry reaches almost two magnitudes below the turn-off level, and is accordingly suitable for an age analysis. Field stars were removed statistically from the cluster’s color-magnitude diagram (CMD), and a differential reddening correc...
متن کاملA Color - Magnitude Diagram for a Globular Cluster in the Giant Elliptical Galaxy NGC 5128
The Hubble Space Telescope has been used to obtain WFPC2 (V, I) photometry for a large sample of stars in the outer halo of the giant elliptical NGC 5128, at a distance 4 Mpc beyond the Local Group. The globular cluster N5128-C44, at the center of the Planetary Camera field, is well enough resolved to permit the construction of a color-magnitude diagram (CMD) for it which covers the brightest t...
متن کاملM75, a Globular Cluster with a Trimodal Horizontal Branch. I. Color-magnitude Diagram
Deep UBVI photometry for a large field covering the distant globular cluster M75 (NGC 6864) is presented. We confirm a previous suggestion (Catelan et al. 1998a) that M75 possesses a bimodal horizontal branch (HB) bearing striking resemblance to the well-known case of NGC 1851. In addition, we detect a third, smaller grouping of stars on the M75 blue tail, separated from the bulk of the blue HB...
متن کاملA new , cleaner colour - magnitude diagram for the metal - rich globular cluster NGC 6528 and the velocity dispersion in the Galactic Bulge
Using two epochs of observations with HST/WFPC2 we obtain the stellar proper motions for all stars in the field. The proper motions are used to separate the bulge from the cluster stars. The stellar sequences in the resulting colour-magnitude diagram (CMD) are better defined than in any previously published CMD. Using α-enhanced stellar isochrones we find NGC 6528 to have a probable age of 11± ...
متن کاملAn Extinction Map and Color Magnitude Diagram for the Globular
Differential EV −I variations of up to ∼ 0.2 mag on a scale of arcminutes across NGC 3201 are presented in the form of an extinction map. This map, created by calculating average EV −I values for stars in small subregions of the field with respect to a fiducial region, greatly improves the appearance of the CMD of the cluster. We describe how we implemented this technique in detail with our dat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2013
ISSN: 0004-6256,1538-3881
DOI: 10.1088/0004-6256/146/3/57