منابع مشابه
Galaxies : I . Mapping the Dynamics of NGC 205 Beyond the Tidal Radius
NGC 205 is the nearest example of a dwarf elliptical (dE) galaxy and the prototype of this enigmatic galaxy class. Photometric evidence suggests that NGC 205, a close satellite of the M31 galaxy, is tidally interacting with its parent galaxy. We present stellar radial velocity measurements out to a projected radius of 20 ′ (5 kpc) in NGC 205 based on Keck/DEIMOS multislit spectroscopic observat...
متن کاملOn the stellar populations in NGC 185 and NGC 205 , and the nuclear star cluster in NGC 205 from Hubble Space Telescope 1 observations
We present the first detailed analysis of resolved stellar populations in the dwarf galaxies NGC 185 and NGC 205 based on archival V-and I-band WFPC2 pointings. For NGC 185 we deduce from the brightest main sequence and blue loop stars that star formation was probably still active about 4×10 8 yr ago; and have three key abundance-related results: (1) We identify ancient stars with [Fe/H]-1.5 de...
متن کاملSurface Photometry of the Dwarf Elliptical Galaxies Ngc 185 and Ngc 205 1
We present BVRI CCD surface photometry for the central(6 0 .35 6 0 .35) regions of the dwarf elliptical galaxies NGC 185 and NGC 205 in the Local Group. Surface brightness prooles of NGC 185 (R < 225 00) and NGC 205 (R < 186 00) show excess components in the central regions. The colors of NGC 185 get bluer inward at R < 25 00 , while they remain constant at R 25 00. The colors of NGC 205 get bl...
متن کاملSurface Photometry of the Dwarf Elliptical Galaxies Ngc 185 and Ngc 205
We present BVRI CCD surface photometry for the central(6.35 × 6.35) regions of the dwarf elliptical galaxies NGC 185 and NGC 205 in the Local Group. Surface brightness profiles of NGC 185 (R < 225) and NGC 205 (R < 186) show excess components in the central regions. The colors of NGC 185 get bluer inward at R < 25, while they remain constant at R ≥ 25. The colors of NGC 205 get bluer inward at ...
متن کاملSegregation and Tidal Tails of the Globular Cluster NGC 7492
We present a wide field CCD photometric study of Galactic globular cluster NGC 7492. The derived V R color-magnitude diagram extends down to about 3.5 mag below the cluster main sequence turn-off. The field covers 42 × 42 about 3 times larger than the known tidal radius of this cluster. The sample of cluster member candidates obtained by CMD-mask process has been used to construct luminosity an...
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: Monthly Notices of the Royal Astronomical Society
سال: 2004
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2004.08076.x