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- W3100697948 abstract "We have obtained deep photometry of NGC 1199 (in the compact group HCG 22) and NGC 6868 (in the Telescopium loose group) with the Keck II and the VLT-I telescopes. Both galaxies are the optically brightest galaxy of their groups. NGC 1199 has two companion galaxies at a median projected distance of only 33 kpc and, based in its peculiar internal structure and large X-ray halo, NGC 6868 has been proposed to be a merger remnant. Our analysis of $B$ and $R$ images uncovered a population of globular clusters around both galaxies, with total (and local) specific frequency S_N = 3.6pm1.8 (3.4pm1.5) for NGC 1199 and S_N = 1.8pm1.1 (0.8pm0.4) for NGC 6868. The radial profile of the globulars of NGC 1199 follows the light distribution of the galaxy and can be fitted by a power--law and a ``core model'' with a very steep slope (alpha = 2.5pm0.3). In the case of NGC 6868, the profile of the globulars is well fitted by a power--law and a ``core model'' profile of slope 1.4pm0.3 and is shallower than the galaxy light distribution. Maximum-likelihood fitting of two Gaussians to the globular cluster color distribution yields a high significance for multi-modality with peaks centered at (B-R)_0 = 1.13pm0.04 and 1.42pm0.04 (NGC 1199) and (B-R)_0=1.12pm0.07 and 1.42pm0.07 (NGC 6868). NGC 1199 and NGC 6868 are good examples of galaxies where the group environment are likely to have affected their dynamical evolution. We find that for NGC 1199, the properties of the globular cluster system are similar to those for other systems around external elliptical galaxies located in less dense environments, but with a very steep radial profile. In the case of NGC 6868, we find a regular radial profile and color distribution and a comparatively low specific frequency for the globular cluster system of the galaxy." @default.
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- W3100697948 date "2002-02-01" @default.
- W3100697948 modified "2023-09-26" @default.
- W3100697948 title "Globular Clusters around Galaxies in Groups" @default.
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- W3100697948 doi "https://doi.org/10.1086/338435" @default.
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