Results 191 to 200 of about 2,756,668 (275)

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  

Estimated number of field stars toward Galactic globular clusters and Local Group Galaxies

, 1985
K. U. Ratnatunga, John N. Bahcall
openalex   +1 more source

Clusters and groups of galaxies as cosmological probes

, 1993
Haruhiko Ueda, Makoto Itoh, Yasushi Suto
openalex   +2 more sources

Exploring the selection of galaxy clusters and groups: an optical survey for X-ray dark clusters [PDF]

, 2004
David Gilbank, R. G. Bower, F. J. Castander, B. Ziegler   +3 more
openalex   +1 more source

Star Clusters in Local Group Galaxies

, 1999
E. K. Grebel
openalex   +2 more sources

Heating groups and clusters of galaxies: The role of AGN jets [PDF]

, 2004
C. Zanni, G. Murante, G. Bodo, S. Massaglia, P. Rossi, A. Ferrari   +5 more
openalex   +1 more source

Study of Satellite Plane Structure Characteristics Based on TNG50 Simulations: A Comparative Analysis from Plane to Nonplane Structures

The Astrophysical Journal
In recent years, multiple plane structures of satellite galaxies have been identified in the nearby Universe, although their formation mechanisms remain unclear.
Caiyu Hu, Lin Tang
doaj   +1 more source

Ultra-compact dwarf galaxies: a new component of galaxy clusters and groups [PDF]

, 2005
M. J. Drinkwater, E. A. Evstigneeva, Michael D. Gregg, J. B. Jones, S. Phillipps, Russell J. Jurek   +5 more
openalex   +1 more source

Environments of Luminous Low-frequency Radio Galaxies Since Cosmic Noon: Jet-mode Feedback Dominates in Groups

The Astrophysical Journal
Coupling between relativistic jets launched by accreting supermassive black holes and the surrounding gaseous media is a vital ingredient in galaxy evolution models.
Grayson C. Petter, Ryan C. Hickox, Leah K. Morabito, David M. Alexander   +3 more
doaj   +1 more source

sOPTICS: A Modified Density-Based Algorithm for Identifying Galaxy Groups/Clusters and Brightest Cluster Galaxies [PDF]

arXiv
A direct approach to studying the galaxy-halo connection is to analyze groups and clusters of galaxies that trace the underlying dark matter halos, emphasizing the importance of identifying galaxy clusters and their associated brightest cluster galaxies (BCGs).
arxiv