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- W1978536469 startingPage "2023" @default.
- W1978536469 abstract "We determine both representations of the Fundamental Plane [FP; Re ∝ σa0〈I〉−be and Re ∝ (σ20〈I〉−1e)λ] and the luminosity-effective phase-space density (L ∝ f−γe) scaling relation for N-body remnants of binary mergers of spiral-like galaxies. The main set of merger simulations involves a mass ratio of the progenitors in the range of about 1:1 to 1:5, harboring or not a bulge-like component, and are constructed using a cosmological motivated model. Equal-mass mergers are also considered. Remnants lead to average values for the scaling indices of 〈a〉 ≈ 1.6, 〈b〉 ≈ 0.6, 〈λ〉 ≈ 0.7, and 〈γ〉 ≈ 0.65. These values are consistent with those of K–band observations of ellipticals: 〈a〉 ≈ 1.5, 〈b〉 ≈ 0.8, 〈λ〉 ≈ 0.7, and 〈γ〉 ≈ 0.60. The b index is, however, not well reproduced. This study does not allow us to establish a conclusive preference for models with or without a bulge as progenitors. Our results indicate that the L–fe and FP scalings might be determined to a large extent by dissipationless processes, a result that appears to be in contradiction to other dissipationless results." @default.
- W1978536469 created "2016-06-24" @default.
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- W1978536469 date "2009-06-05" @default.
- W1978536469 modified "2023-09-24" @default.
- W1978536469 title "SCALING RELATIONS IN DISSIPATIONLESS SPIRAL-LIKE GALAXY MERGERS" @default.
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- W1978536469 doi "https://doi.org/10.1088/0004-637x/698/2/2023" @default.
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