Results 141 to 150 of about 12,793,373 (294)

A classification of the galaxy groups [PDF]

A statistical criterion has been proposed to reveal the random and physical clusterings among stars, galaxies and other objects. This criterion has been applied to the galaxy triples of the list by Karachentseva, Karaschentsev and Scherbanovsky, and the ...
Anosova, Joanna P.
core   +1 more source

Studying the Patterns of the Universe

Open Astronomy, 2011
The SDSS galaxy catalog is one of the best databases for galaxy distribution studies. The SDSS DR8 data is used to construct the galaxy cluster catalog.
Sepp T., Tempel E., Gramann M., Nurmi P., Haupt M.   +4 more
doaj   +1 more source

A Dense Group of Galaxies in Serpens [PDF]

, 1951
Carl Κ. Seyfert
openalex   +1 more source

Shell-like structures in our cosmic neighbourhood

, 2016
Signatures of the processes in the early Universe are imprinted in the cosmic web. Some of them may define shell-like structures characterised by typical scales.
Arnalte-Mur, P., Einasto, J., Einasto, M., Heinämäki, P., Hurtado-Gil, L., Liivamägi, L. J., Martinez, V. J., Nurmi, P., Saar, E.   +8 more
core   +1 more source

THE PECULIARITIES IN O-TYPE GALAXY CLUSTERS

Odessa Astronomical Publications, 2017
We present the results of analysis of 2D distribution of galaxies in galaxy cluster fields. The Catalogue of Galaxy Clusters and Groups PF (Panko & Flin) was used as input observational data set.
E. A. Panko, S. I. Emelyanov
doaj   +1 more source

Infalling groups and galaxy transformations in the cluster A2142

, 2017
We study galaxy populations and search for possible merging substructures in the rich galaxy cluster A2142. Normal mixture modelling revealed in A2142 several infalling galaxy groups and subclusters.
Deshev, Boris, Einasto, Jaan, Einasto, Maret, Gramann, Mirt, Heinämäki, Pekka, Kipper, Rain, Lietzen, Heidi, Park, Changbom, Saar, Enn, Tempel, Elmo   +9 more
core   +1 more source

Galaxy groups in the presence of cosmological constant: Increasing the masses of groups

Physics Letters B
The boundaries of galaxy groups and clusters are defined by the interplay between the Newtonian attractive force and the decoupling from the local expansion of the Universe.
David Benisty, Moshe M. Chaichian, Anca Tureanu   +2 more
doaj   +1 more source

Serendipitous Catch of a Giant Jellyfish: An Ionized Nebula around 3C 275.1 with 170 kpc Long Tails

The Astrophysical Journal
3C 275.1 is a blue quasar at z = 0.55522, hosting powerful outflows and residing in a complex environment. We present a serendipitously detected giant nebula surrounding 3C 275.1, which shows morphological features resembling those of objects known as ...
Qinyuan Zhao, Junfeng Wang, Zhenzhen Li
doaj   +1 more source

The Velocity-Distance Relation and the Hubble Constant for Nearby Groups of Galaxies [PDF]

, 1972
G. de Vaucouleurs
openalex   +1 more source

A Massive Quiescent Galaxy in a Group Environment at z = 4.53

The Astrophysical Journal
We report on the spectroscopic confirmation of a massive quiescent galaxy at z _spec = 4.53 in the COSMOS field. The object was first identified as a galaxy with suppressed star formation at z _phot ∼ 4.65 from the COSMOS2020 catalog.
Takumi Kakimoto, Masayuki Tanaka, Masato Onodera, Rhythm Shimakawa, Po-Feng Wu, Katriona M. L. Gould, Kei Ito, Shuowen Jin, Mariko Kubo, Tomoko L. Suzuki, Sune Toft, Francesco Valentino, Kiyoto Yabe   +12 more
doaj   +1 more source