Fundamental plane of groups and clusters of galaxies: distances and peculiar velocities of superclusters of galaxies on small scales

Kopylova F.; Kopylov A.

doi:doi:10.26119/VAK2024.028

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Fundamental plane of groups and clusters of galaxies: distances and peculiar velocities of superclusters of galaxies on small scales

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FUNDAMENTAL PLANE OF GROUPS AND CLUSTERS OF GALAXIES: DISTANCES AND PECULIAR VELOCITIES OF SUPERCLUSTERS OF GALAXIES ON SMALL SCALES

Section: PHYSICS OF GALAXIES AND COSMOLOGY

Proceedings: MODERN ASTRONOMY: FROM THE EARLY UNIVERSE TO EXOPLANETS AND BLACK HOLES Volume 1

UDK 52 Астрономия. Геодезия UDK 53 Физика UDK 520 Инструменты, приборы и методы астрономических наблюдений, измерений и анализа UDK 521 Теоретическая астрономия. Небесная механика. Фундаментальная астрономия. Теория динамической и позиционной астрономии UDK 523 Солнечная система UDK 524 Звезды и звездные системы. Вселенная Солнце и Солнечная система UDK 52-1 Метод изучения UDK 52-6 Излучение и связанные с ним процессы

GRNTI 41.00 АСТРОНОМИЯ GRNTI 29.35 Радиофизика. Физические основы электроники GRNTI 29.31 Оптика GRNTI 29.33 Лазерная физика GRNTI 29.27 Физика плазмы GRNTI 29.05 Физика элементарных частиц. Теория полей. Физика высоких энергий

OKSO 03.06.01 Физика и астрономия OKSO 03.05.01 Астрономия OKSO 03.04.03 Радиофизика

BBK 2 ЕСТЕСТВЕННЫЕ НАУКИ BBK 223 Физика

TBK 614 Астрономия TBK 6135 Оптика

BISAC SCI004000 Astronomy BISAC SCI005000 Physics / Astrophysics

Kopylova F. ¹

Kopylov A. ²

Author and publication information

Authors:

1. Special Astrophysical Observatory of the Russian Academy of Sciences

2. Special Astrophysical Observatory of the Russian Academy of Sciences

Type:

Сonference article

DOI:

https://doi.org/10.26119/VAK2024.028

EDN:

https://elibrary.ru/zfdkei

Published:

27.12.2024

Subject area:

52
53
520
521
523
524
52-1
52-6
41.00
29.35
29.31
29.33
29.27
29.05
03.06.01
03.05.01
03.04.03
2
223
614
6135
SCI004000
SCI005000

Language:

English

Keywords:

galaxies: groups and clusters: distances and redshifts; cosmology: large-scale structure of universe

Abstract and keywords

Abstract (English):
We have studied the relationships between the basic properties of 172 groups and clusters of galaxies based on archival data from the SDSS, 2MASX, and NED catalogs. The measured parameters (

\log R_{e}

⟨ \log I_{e} ⟩

and

\log σ

of the clusters of galaxies determine the fundamental plane (FP) in the near infrared:

\log R_{e} = 0.98 (\pm 0.06) \log σ - 0.56 (\pm 0.04) ⟨ \log ⟨ I_{e} ⟩ ⟩ + 3.57 (\pm 0.07)

, which can be used to determine the distances of the galaxy systems. The root-mean-square deviation of the FP zero-point is 0.07, which corresponds to an error of 16% in determining the distance of the group or cluster of galaxies. For the first time we have measured the peculiar velocities of the superclusters of galaxies. The mean peculiar velocity of the 5 superclusters of galaxies relative to the CMB is

+ 75 \pm 360

km/s.

Keywords:
galaxies: groups and clusters: distances and redshifts; cosmology: large-scale structure of universe

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References

1. Kopylova F.G. and Kopylov A.I., 2016, Astrophysical Bulletin, 71, 3, p. 257

2. Kopylova F.G. and Kopylov A.I., 2024, Astrophysical Bulletin, 79, 1, p. 1

3. Schaeffer R., Maurogordato S., Cappi A., et al., 1993, Monthly Notices of the Royal Astronomical Society, 263, p. L21

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