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Possible Relations between Brightest Central Galaxies and Their Host Galaxies Clusters and Groups

R. M. Samir

R. M. Samir

Galactic and Extragalactic Laboratory, Astronomy Department, National Research Institute of Astronomy and Geophysics (NRIAG)Helwan, Egypt
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Samir, R. M.
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A. A. Shaker

A. A. Shaker

Galactic and Extragalactic Laboratory, Astronomy Department, National Research Institute of Astronomy and Geophysics (NRIAG)Helwan, Egypt
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Shaker, A. A.
  
28 ene 2021
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Publicado en línea: 28 ene 2021
Páginas: 395 - 400
Recibido: 30 nov 2020
Aceptado: 27 oct 2020
DOI: https://doi.org/10.2478/amns.2021.1.00002
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© 2021 R. M. Samir et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Fig. 1

σcl - redshift relation.
σcl - redshift relation.

Fig. 2

BCGs distribution with their spectroscopic redshifts.
BCGs distribution with their spectroscopic redshifts.

Fig. 3

BCGs r-band effective radii (Re) with (a) redshift and (b) σcl of host clusters and groups. Error bars represent the average values of σcl in every Re bin with errors.
BCGs r-band effective radii (Re) with (a) redshift and (b) σcl of host clusters and groups. Error bars represent the average values of σcl in every Re bin with errors.

Fig. 4

BCGs r-band absolute magnitude with respect to (a) redshift and (b) σcl of host clusters and groups. Error bars represent the average values of σcl in every Mr bin with errors.
BCGs r-band absolute magnitude with respect to (a) redshift and (b) σcl of host clusters and groups. Error bars represent the average values of σcl in every Mr bin with errors.

Fig. 5

σo of BCGs in r-band with respect to (a) redshift and (b) σcl of host clusters and groups. Error bars represent the average values of log10 σcl for log10 σo bins with errors.
σo of BCGs in r-band with respect to (a) redshift and (b) σcl of host clusters and groups. Error bars represent the average values of log10 σcl for log10 σo bins with errors.

Fig. 6

σo of BCGs in r-band with respect to σcl of host clusters and groups as a function of σcl. Error bars represent the average values of σo/σcl in different σcl bins with errors. The blue solid line shows the best exponential fit to our sample. The black solid and dashed lines show the predicted relation and the 1σ deviation from simulation done by [3], respectively. The green dotted line is the predicted relation from simulations done by [5].
σo of BCGs in r-band with respect to σcl of host clusters and groups as a function of σcl. Error bars represent the average values of σo/σcl in different σcl bins with errors. The blue solid line shows the best exponential fit to our sample. The black solid and dashed lines show the predicted relation and the 1σ deviation from simulation done by [3], respectively. The green dotted line is the predicted relation from simulations done by [5].
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Ciencias de la vida, Ciencias de la vida, otros, Matemáticas, Matemáticas aplicadas, Matemáticas generales, Física, Física, otros
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