Distance, structure and bright stellar content of the dwarf irregular galaxy UGC 685

نویسندگان

چکیده

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Distance , structure and bright stellar content of the dwarf irregular galaxy UGC 685

B and R CCD images and J NICMOS3 frames taken with the Calar Alto 3.5m telescope of the dwarf irregular galaxy UGC 685 are presented. The brightest part of the stellar population is resolved in B and R, very few also in J. The stellar color-magnitude diagram is discussed. An estimate of the distance to UGC 685 of 5.5 Mpc is derived based on the brightest blue supergiant stars. Most of the resol...

متن کامل

Stellar Populations of the Sagittarius Dwarf Irregular Galaxy

We present deep BV RI CCD photometry of the stars in the dwarf irregular galaxy SagDIG. The color-magnitude diagrams of the measured stars in SagDIG show a blue plume which consists mostly of young stellar populations, and a well-defined red giant branch (RGB). The foreground reddening of SagDIG is estimated to be E(B − V ) = 0.06. The tip of the RGB is found to be at ITRGB = 21.55 ± 0.10 mag. ...

متن کامل

First Stellar Abundances in the Dwarf Irregular Galaxy

First Stellar Abundances in the Dwarf Irregular Galaxy Sextans A Andreas Kaufer European Southern Observatory, Alonso de Cordova 3107, Santiago 19, Chile [email protected] Kim A. Venn Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK, and Macalester College, 1600 Grand Avenue, Saint Paul, MN, 55105, USA [email protected] Eline Tolstoy Kapteyn Institute, Uni...

متن کامل

The stellar content of the Sagittarius Dwarf Galaxy

Wepresent V,I deep CCD photometry for three fields of the dwarf galaxy in Sagittarius (Sgr), located at l=5.6, b=14.1. One of the fields is centered on the globular cluster NGC 6715 (M54), which lies in one of the dense clumps of the Sgr galaxy. Comparing the CMD of Sgr with those of globular clusters which are believed to be kinematically associated with the dwarf galaxy (Da Costa & Armandroff...

متن کامل

The stellar content of the isolated transition dwarf galaxy DDO210⋆

We use Subaru Suprime-Cam and VLT FORS1 photometry of the dwarf galaxy DDO210 to study the global stellar content and structural properties of a transitiontype galaxy (with properties intermediate between dwarf irregular and dwarf spheroidal systems). This galaxy is sufficiently isolated that tidal interactions are not likely to have affected its evolution in any way. The colour-magnitude diagr...

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

ژورنال

عنوان ژورنال: Astronomy and Astrophysics Supplement Series

سال: 1999

ISSN: 0365-0138,1286-4846

DOI: 10.1051/aas:1999134