ESO 280 – SC 06 : a new globular cluster in the Galaxy ?

نویسندگان

  • S. Ortolani
  • E. Bica
  • B. Barbuy
چکیده

By means of VI CCD photometry we identify a new globular cluster in the Galaxy: ESO 280−SC06. The images and Colour Magnitude Diagrams indicate that we are dealing with a sparsely populated globular cluster, showing a compact core. The cluster is located in Ara, projected at only 12.6 o from the plane, and appears to be metal poor ([Fe/H] ≈ −1.8). We derive a reddening E(B−V) = 0.07 and a distance from the Sun d = 21.9 kpc. It is a halo globular cluster on the opposite side of the Galaxy.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Bizarre Chemical Inventory of Ngc 2419, an Extreme Outer Halo Globular Cluster

We present new Keck/HIRES observations of six red giants in the globular cluster NGC 2419. Although the cluster is among the most distant and most luminous in the Milky Way, it was considered chemically ordinary until very recently. Our previous work showed that the near-infrared Ca II triplet line strength varied more than expected for a chemically homogeneous cluster, and that at least one st...

متن کامل

ar X iv : a st ro - p h / 01 07 49 1 v 1 2 5 Ju l 2 00 1 Globular Cluster Population of Hickson Compact Group 22 a and 90 c 1

We present the first measurement of the globular cluster populations of galaxies in Hickson compact groups, in order to investigate the effect of these high density environments on the formation and evolution of globular cluster systems. Based on V and R band images that we obtained of HCG 22a and HCG 90c with the ESO New Technology Telescope (NTT), we find a total globular cluster population o...

متن کامل

ar X iv : a st ro - p h / 06 06 71 8 v 1 2 9 Ju n 20 06 AL 3 ( BH 261 ) : a new globular cluster in the Galaxy

AL 3 (BH 261), previously classified as a faint open cluster candidate, is shown to be a new globular cluster in the Milky Way, by means of B, V and I Color-Magnitude Diagrams. The main feature of AL 3 is a prominent blue extended Horizontal Branch. Its Color-Magnitude Diagrams match those of the intermediate metallicity cluster M 5. The cluster is projected in a rich bulge field, also contamin...

متن کامل

as tr o - ph / 9 60 40 17 1 A pr 1 99 6 GLOBULAR CLUSTERS IN THE INNER REGIONSOF

We have identi ed 26 new globular cluster candidates in the inner 3 kpc of NGC 5128 (Cen A), the nearest known large galaxy being the probable product of a merger. The clusters are selected on the basis of their structural parameters (observed core diameters and ellipticities), as measured from archival WFPC HST images. IR photometry obtained with IRAC2B at the ESO/MPI 2.2{m telescope is combin...

متن کامل

ar X iv : a st ro - p h / 99 06 49 9 v 1 3 0 Ju n 19 99 to appear in AJ Globular Cluster Systems I : V − I Color Distributions

We have compiled data for the globular cluster systems of 50 galaxies from the HST WFPC2 archive, of which 43 are type S0 or earlier. In this paper, we present the data set and derive the V − I color distributions. We derive the first four moments of the color distributions, as well as a measure for their non–unimodality. The number of globular clusters in each galaxy ranges from 18 (in NGC 277...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000