Kinematics of early-type galaxies in compact groups: HCG 67, HCG 74 and HCG 79
نویسندگان
چکیده
منابع مشابه
Intra - group diffuse light in compact groups of galaxies . HCG 79 , HCG 88 and HCG 95
Deep B and R images of three Hickson Compact Groups, HCG 79, HCG 88 and HCG 95, were analyzed using a new wavelet technic to measure possible intra-group diffuse light present in these systems. The method used, OV WAV, is a wavelet technic particularly suitable to detect low-surface brightness extended structures, down to a S/N = 0.1 per pixel, which corresponds to a 5-σ-detection level in wave...
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We present kinematic observations of Hα emission for two early-type galaxies and one disk system, members of the Hickson compact group 90 (HCG 90) obtained with a scanning Fabry-Perot interferometer and samplings of 16 km s −1 and 1 ′′. Mapping of the gas kinematics was possible to ∼ 2 r ef f for the disk galaxy N7174 and to ∼ 1.3 r ef f and ∼ 1.7 r ef f for the early-type galaxies N7176 and N7...
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This continuing study of intragroup light in compact groups of galaxies aims to establish new constraints to models of formation and evolution of galaxy groups, specially of compact groups, which are a key part in the evolution of larger structures, such as clusters. In this paper we present three additional groups (HCG 15, 35 and 51) using deep wide field B and R band images observed with the ...
متن کاملThe Compact Group of Galaxies Hcg 31 Is in an Early Phase of Merging
We have obtained high spectral resolution (R = 45900) Fabry-Perot velocity maps of the Hickson Compact Group HCG 31 in order to revisit the important problem of the merger nature of the central object A+C and to derive the internal kinematics of the candidate tidal dwarf galaxies in this group. Our main findings are: (1) double kinematic components are present throughout the main body of A+C, w...
متن کاملBiological functions of hCG and hCG-related molecules
BACKGROUND hCG is a term referring to 4 independent molecules, each produced by separate cells and each having completely separate functions. These are hCG produced by villous syncytiotrophoblast cells, hyperglycosylated hCG produced by cytotrophoblast cells, free beta-subunit made by multiple primary non-trophoblastic malignancies, and pituitary hCG made by the gonadotrope cells of the anterio...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 2000
ISSN: 0252-9211
DOI: 10.1017/s0252921100054749