Open Access
The Hierarchical Growth of Bright Central Galaxies and Intracluster Light as Traced by the Magnitude Gap
Jesse B. Golden-Marx
1
,
Y. Zhang
2
,
R. L. C. Ogando
3, 4
,
B. Yanny
5
,
Brian Yanny
6
,
M. E. S. Pereira
7
,
Matt Hilton
8, 9
,
M. Aguena
10, 11
,
S. Allam
5
,
Sahar S. Allam
6
,
F. Andrade-Oliveira
12
,
D. Bacon
13
,
D. Brooks
14
,
A. Carnero Rosell
10, 15
,
A. Carnero Rosell
11, 16
,
J. Carretero
17
,
T-Y Cheng
18
,
Ting-Yun Cheng
19
,
L. N. da Costa
10, 11
,
J. De Vicente
20
,
S. Desai
21
,
P. Doel
14, 22
,
S. Everett
23, 24
,
I. Ferrero
25, 26
,
J. Frieman
5, 27
,
Joshua A. Frieman
6, 28
,
J. García-Bellido
29
,
M. Gatti
30
,
G. Giannini
17, 28
,
D. Gruen
31
,
D. M. Gruen
32
,
R. A. Gruendl
33, 34, 35
,
G. Gutierrez
5
,
C. Gutiérrez
6
,
S. R. Hinton
36
,
D. L. Hollowood
37
,
K. Honscheid
38, 39
,
D. J. James
40
,
D. James
41
,
K. Kuehn
42, 43
,
Kyler Kuehn
44, 45
,
S ( Lee
24
,
J. Mena-Fernández
46
,
F. Menanteau
34, 35
,
R. Miquel
17, 47
,
J. Mohr
31
,
Jay P. Mohr
32
,
A. Palmese
48
,
A. Pieres
4, 11
,
A. A. Plazas Malagón
49, 50
,
A. A. Plazas
51, 52
,
S. Samuroff
53
,
E. Sanchez
54
,
E. Sánchez
20
,
M. Schubnell
12
,
I. Sevilla-Noarbe
20
,
M. Smith
55
,
M.A.L. Smith
56
,
E. Suchyta
57
,
G. Tarle
12
,
V. Vikram
58, 59
,
A. R. Walker
60
,
Alistair R. Walker
61
,
N. Weaverdyck
62, 63
,
P. Wiseman
64
2
NSF’s National Optical-Infrared Astronomy Research Laboratory , 950 Cherry Ave., Tucson, Az 85719 ,
|
3
Observatório Nacional , Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400 ,
|
4
Observatório Nacional , Rua Gal. José Cristino 77, Rio de Janeiro, RJ-20921-400 ,
|
10
Laboratório Interinstitucional de e-Astronomia - LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400,
|
11
Laboratório Interinstitucional de e-Astronomia – LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ-20921-400 ,
|
17
20
24
25
26
29
33
Center for Astrophysical Surveys, National Center for Supercomputing Applications , 1205 West Clark St., Urbana, IL 61801,
34
Center for Astrophysical Surveys, National Center for Supercomputing Applications , 1205 West Clark St, Urbana, IL 61801 ,
37
Santa Cruz Institute for Particle Physics , Santa Cruz, CA 95064 ,
38
43
Lowell Observatory , 1400 Mars Hill Rd, Flagstaff, AZ 86001,
45
Lowell Observatory , 1400 Mars Hill Rd, Flagstaff, AZ 86001 ,
46
LPSC Grenoble - 53 , Avenue des Martyrs, F-38026 Grenoble ,
|
47
49
51
57
58
Argone National Laboratory , 9700 S. Cass Avenue, Lemont, IL 60439,
|
60
Cerro Tololo Inter-American Observatory, NSF’s National Optical-Infrared Astronomy Research Laboratory , Casilla 603, La Serena,
|
61
Cerro Tololo Inter-American Observatory, NSF’s National Optical-Infrared Astronomy Research Laboratory , Casilla 603, La Serena ,
|
Publication type: Journal Article
Publication date: 2025-02-13
scimago Q1
wos Q1
SJR: 1.702
CiteScore: 9.7
Impact factor: 4.8
ISSN: 00358711, 13652966, 13658711
Abstract
Using a sample of 2800 galaxy clusters identified in the Dark Energy Survey across the redshift range 0.20 < z < 0.60, we characterize the hierarchical assembly of Bright Central Galaxies (BCGs) and the surrounding intracluster light (ICL). To quantify hierarchical formation we use the stellar mass - halo mass (SMHM) relation, comparing the halo mass, estimated via the mass-richness relation, to the stellar mass within the BCG+ICL system. Moreover, we incorporate the magnitude gap (M14), the difference in brightness between the BCG (measured within 30 kpc) and 4th brightest cluster member galaxy within 0.5 R200, c, as a third parameter in this linear relation. The inclusion of M14, which traces BCG hierarchical growth, increases the slope and decreases the intrinsic scatter, highlighting that it is a latent variable within the BCG+ICL SMHM relation. Moreover, the correlation with M14 decreases at large radii. However, the stellar light within the BCG+ICL transition region (30 kpc - 80 kpc) most strongly correlates with halo mass and has a statistically significant correlation with M14. Since the transition region and M14 are independent measurements, the transition region may grow due to the BCG’s hierarchical formation. Additionally, as M14 and ICL result from hierarchical growth, we use a stacked sample and find that clusters with large M14 values are characterized by larger ICL and BCG+ICL fractions, which illustrates that the merger processes that build the BCG stellar mass also grow the ICL. Furthermore, this may suggest that M14 combined with the ICL fraction can identify dynamically relaxed clusters.
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Golden-Marx J. B. et al. The Hierarchical Growth of Bright Central Galaxies and Intracluster Light as Traced by the Magnitude Gap // Monthly Notices of the Royal Astronomical Society. 2025. Vol. 538. No. 2. pp. 622-638.
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Golden-Marx J. B. et al. The Hierarchical Growth of Bright Central Galaxies and Intracluster Light as Traced by the Magnitude Gap // Monthly Notices of the Royal Astronomical Society. 2025. Vol. 538. No. 2. pp. 622-638.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1093/mnras/staf277
UR - https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf277/8011550
TI - The Hierarchical Growth of Bright Central Galaxies and Intracluster Light as Traced by the Magnitude Gap
T2 - Monthly Notices of the Royal Astronomical Society
AU - Golden-Marx, Jesse B.
AU - Zhang, Y.
AU - Ogando, R. L. C.
AU - Yanny, B.
AU - Yanny, Brian
AU - Pereira, M. E. S.
AU - Hilton, Matt
AU - Aguena, M.
AU - Allam, S.
AU - Allam, Sahar S.
AU - Andrade-Oliveira, F.
AU - Bacon, D.
AU - Brooks, D.
AU - Rosell, A. Carnero
AU - Carnero Rosell, A.
AU - Carretero, J.
AU - Cheng, T-Y
AU - Cheng, Ting-Yun
AU - da Costa, L. N.
AU - De Vicente, J.
AU - Desai, S.
AU - Doel, P.
AU - Everett, S.
AU - Ferrero, I.
AU - Frieman, J.
AU - Frieman, Joshua A.
AU - García-Bellido, J.
AU - Gatti, M.
AU - Giannini, G.
AU - Gruen, D.
AU - Gruen, D. M.
AU - Gruendl, R. A.
AU - Gutierrez, G.
AU - Gutiérrez, C.
AU - Hinton, S. R.
AU - Hollowood, D. L.
AU - Honscheid, K.
AU - James, D. J.
AU - James, D.
AU - Kuehn, K.
AU - Kuehn, Kyler
AU - Lee, S (
AU - Mena-Fernández, J.
AU - Menanteau, F.
AU - Miquel, R.
AU - Mohr, J.
AU - Mohr, Jay P.
AU - Palmese, A.
AU - Pieres, A.
AU - Malagón, A. A. Plazas
AU - Plazas, A. A.
AU - Samuroff, S.
AU - Sanchez, E.
AU - Sánchez, E.
AU - Schubnell, M.
AU - Sevilla-Noarbe, I.
AU - Smith, M.
AU - Smith, M.A.L.
AU - Suchyta, E.
AU - Tarle, G.
AU - Vikram, V.
AU - Walker, A. R.
AU - Walker, Alistair R.
AU - Weaverdyck, N.
AU - Wiseman, P.
PY - 2025
DA - 2025/02/13
PB - Oxford University Press
SP - 622-638
IS - 2
VL - 538
SN - 0035-8711
SN - 1365-2966
SN - 1365-8711
ER -
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@article{2025_Golden-Marx,
author = {Jesse B. Golden-Marx and Y. Zhang and R. L. C. Ogando and B. Yanny and Brian Yanny and M. E. S. Pereira and Matt Hilton and M. Aguena and S. Allam and Sahar S. Allam and F. Andrade-Oliveira and D. Bacon and D. Brooks and A. Carnero Rosell and A. Carnero Rosell and J. Carretero and T-Y Cheng and Ting-Yun Cheng and L. N. da Costa and J. De Vicente and S. Desai and P. Doel and S. Everett and I. Ferrero and J. Frieman and Joshua A. Frieman and J. García-Bellido and M. Gatti and G. Giannini and D. Gruen and D. M. Gruen and R. A. Gruendl and G. Gutierrez and C. Gutiérrez and S. R. Hinton and D. L. Hollowood and K. Honscheid and D. J. James and D. James and K. Kuehn and Kyler Kuehn and S ( Lee and J. Mena-Fernández and F. Menanteau and R. Miquel and J. Mohr and Jay P. Mohr and A. Palmese and A. Pieres and A. A. Plazas Malagón and others},
title = {The Hierarchical Growth of Bright Central Galaxies and Intracluster Light as Traced by the Magnitude Gap},
journal = {Monthly Notices of the Royal Astronomical Society},
year = {2025},
volume = {538},
publisher = {Oxford University Press},
month = {feb},
url = {https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf277/8011550},
number = {2},
pages = {622--638},
doi = {10.1093/mnras/staf277}
}
Cite this
MLA
Copy
Golden-Marx, Jesse B., et al. “The Hierarchical Growth of Bright Central Galaxies and Intracluster Light as Traced by the Magnitude Gap.” Monthly Notices of the Royal Astronomical Society, vol. 538, no. 2, Feb. 2025, pp. 622-638. https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf277/8011550.