منابع مشابه
HRI observations of the Local Group galaxies IC 10 , NGC 147 and NGC 185
We report on pointed X-ray observations of IC 10, NGC 147 and NGC 185 made with the ROSAT High Resolution Imager (HRI). These are three Local Group galaxies that have never been previously studied in detail in the X-ray regime. IC 10 is the closest starburst galaxy to our own Galaxy, and NGC 147 and NGC 185 are companions to M31. We have discovered a variable X-ray source coincident with IC 10....
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 کاملAges , metallicities , and [ α / Fe ] ratios of globular clusters in NGC 147 , NGC 185 , and NGC 205
We present measurements of ages, metallicities, and [α/Fe] ratios for 16 globular clusters (GC) in NGC 147, NGC 185, and NGC 205 and of the central regions of the diffuse galaxy light in NGC 185, and NGC 205. Our results are based on spectra obtained with the SCORPIO multi-slit spectrograph at the 6-m telescope of the Russian Academy of Sciences. We include in our analysis high-quality HST/WFPC...
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 کاملNGC 6520 and the nearby dark molecular cloud
Wide field BVI photometry and CO(1→0) observations are presented in the region of the open cluster NGC 6520 and the dark molecular cloud Barnard 86. From the analysis of the optical data we find that the cluster is rather compact, with a radius of 1.0±0.5 arcmin, smaller than previous estimates. The cluster age is 150±50 Myr and the reddening EB−V =0.42±0.10. The distance from the Sun is estima...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2001
ISSN: 0004-6256
DOI: 10.1086/323305