Results 131 to 140 of about 29,694 (211)

Tidal Disruption of Super Star Clusters as the Origin of Bluish Light at the Inner Region of the Perseus Cluster Central Galaxy

The Astrophysical Journal
Relatively blue light extends beyond a spiral disk from a radius of ∼5 kpc out to ∼14 kpc from the center of NGC 1275. Analyses of its spectrum and broadband colors reveal a population of young stars having subsolar metallicities superposed on a dominant
Arsen Levitskiy, Youichi Ohyama, Jeremy Lim   +2 more
doaj   +1 more source

The environments of the radio galaxy population in simba. [PDF]

Mon Not R Astron Soc, 2022
Thomas N, Davé R.
europepmc   +1 more source

Augmenting astrophysical scaling relations with machine learning: Application to reducing the Sunyaev-Zeldovich flux-mass scatter. [PDF]

Proc Natl Acad Sci U S A, 2023
Wadekar D, Thiele L, Villaescusa-Navarro F, Hill JC, Cranmer M, Spergel DN, Battaglia N, Anglés-Alcázar D, Hernquist L, Ho S.   +9 more
europepmc   +1 more source

Using Neural Networks to Automate the Identification of Brightest Cluster Galaxies in Large Surveys

The Astrophysical Journal
Brightest cluster galaxies (BCGs) lie deep within the largest gravitationally bound structures in existence. Though some cluster finding techniques identify the position of the BCG and use it as the cluster center, other techniques may not automatically ...
Patrick Janulewicz, Tracy M. A. Webb, Laurence Perreault-Levasseur   +2 more
doaj   +1 more source

A trail of dark-matter-free galaxies from a bullet-dwarf collision. [PDF]

Nature, 2022
van Dokkum P, Shen Z, Keim MA, Trujillo-Gomez S, Danieli S, Dutta Chowdhury D, Abraham R, Conroy C, Kruijssen JMD, Nagai D, Romanowsky A.   +10 more
europepmc   +1 more source

JWST Photometry of Globular Cluster Populations in MACS0417.5−1154

The Astrophysical Journal
Deep JWST imaging of the massive galaxy cluster MACS0417.5−1154, at redshift z = 0.443, reveals a huge population of globular clusters (GCs) and ultracompact dwarfs (UCDs) primarily distributed around its single central giant brightest cluster galaxy ...
William E. Harris, Marta Reina-Campos, Kaitlyn E. Keatley, Maruša Bradač, Nicholas S. Martis, Adam Muzzin, Gaël Noirot, Ghassan T. E. Sarrouh, Marcin Sawicki, Chris J. Willott, Samantha C. Berek   +10 more
doaj   +1 more source

Galaxy clusters enveloped by vast volumes of relativistic electrons. [PDF]

Nature, 2022
Cuciti V, de Gasperin F, Brüggen M, Vazza F, Brunetti G, Shimwell TW, Edler HW, van Weeren RJ, Botteon A, Cassano R, Di Gennaro G, Gastaldello F, Drabent A, Röttgering HJA, Tasse C.   +14 more
europepmc   +1 more source

Magnetic fields and relativistic electrons fill entire galaxy cluster. [PDF]

Sci Adv, 2022
Botteon A, van Weeren RJ, Brunetti G, Vazza F, Shimwell TW, Brüggen M, Brüggen M, Röttgering HJA, de Gasperin F, Akamatsu H, Bonafede A, Cassano R, Cuciti V, Dallacasa D, Di Gennaro G, Gastaldello F.   +15 more
europepmc   +1 more source

Evolution of the Brightest Cluster Galaxies [PDF]

In this thesis, I explore the evolution of the brightest cluster galaxies (BCGs) over the last 10 billion years through detailed studies of both local BCGs from SDSS and their high-z progenitors from CANDELS UDS.\ud \ud First, I study a large sample of local BCGs and link their morphologies to their structural properties.
openaire  

Construction of the Guide Star Catalog for Double Fine Guidance Sensors Based on SSBK Clustering. [PDF]

Sensors (Basel), 2022
Yang Y, Yin D, Zhang Q, Li Z.
europepmc   +1 more source