Results 141 to 150 of about 89,941 (303)

Brightest Cluster Galaxy Offsets in Cold Dark Matter

The Open Journal of Astrophysics
The distribution of offsets between the brightest cluster galaxies of galaxy clusters and the centroid of their dark matter distributions is a promising probe of the underlying dark matter physics.
Cian Roche, Michael McDonald, Josh Borrow, Mark Vogelsberger, Xuejian Shen, Volker Springel, Lars Hernquist, Ruediger Pakmor, Sownak Bose, Rahul Kannan   +9 more
doaj   +1 more source

LoVoCCS. II. Weak Lensing Mass Distributions, Red-sequence Galaxy Distributions, and Their Alignment with the Brightest Cluster Galaxy in 58 Nearby X-Ray-luminous Galaxy Clusters

The Astrophysical Journal
The Local Volume Complete Cluster Survey is an ongoing program to observe nearly a hundred low-redshift X-ray-luminous galaxy clusters (redshifts 0.03 < z < 0.12 and X-ray luminosities in the 0.1–2.4 keV band L _X500c > 10 ^44 erg s ^−1 ) with the Dark ...
Shenming Fu, Ian Dell’Antonio, Zacharias Escalante, Jessica Nelson, Anthony Englert, Søren Helhoski, Rahul Shinde, Julia Brockland, Philip LaDuca, Christelyn Larkin, Lucca Paris, Shane Weiner, William K. Black, Ranga-Ram Chary, Douglas Clowe, M. C. Cooper, Megan Donahue, August Evrard, Mark Lacy, Tod Lauer, Binyang Liu, Jacqueline McCleary, Massimo Meneghetti, Hironao Miyatake, Mireia Montes, Priyamvada Natarajan, Michelle Ntampaka, Elena Pierpaoli, Marc Postman, Jubee Sohn, David Turner, Keiichi Umetsu, Yousuke Utsumi, Gillian Wilson   +33 more
doaj   +1 more source

Correlation Between the Delay and Rise Time of VLF/LF Amplitudes During 20 Solar X‐Ray Flares Observed in February 2014 at Mid‐Latitude

Radio Science, Volume 60, Issue 4, April 2025.
Abstract During daylight hours, the concentration of electrons in the ionosphere can be amplified by solar flares, which may subsequently influence the propagation of radio waves. Previous research on Very Low Frequency (VLF) signals focused on X‐class and M‐class flares.
Y. Liu, M. Füllekrug
wiley   +1 more source

Star Formation, Radio Sources, Cooling X-Ray Gas, and Galaxy Interactions in the Brightest Cluster Galaxy in 2A0335+096 [PDF]

, 2007
We present deep emission-line imaging taken with the new SOAR Optical Imager of the brightest cluster galaxy (BCG) in the nearby (z = 0.035) X-ray cluster of galaxies 2A0335+096.
M. Donahue, Ming Sun, C. O’Dea, G. Voit, K. Cavagnolo   +4 more
semanticscholar   +1 more source

The growth of brightest cluster galaxies and intracluster light over the past 10 billion years [PDF]

Monthly notices of the Royal Astronomical Society, 2019
We constrain the evolution of the brightest cluster galaxy plus intracluster light (BCG + ICL) using an ensemble of 42 galaxy groups and clusters that span redshifts of z = 0.05−1.75 and masses of M500,c= 2 × 1013−1015 M⊙.
T. DeMaio, Anthony H. Gonzalez, A. Zabludoff, D. Zaritsky, G. Aldering, M. Brodwin, T. Connor, M. Donahue, B. Hayden, J. Mulchaey, Saul Perlmutter, Saul Perlmutter, S. Stanford   +12 more
semanticscholar   +1 more source

The Mass Distribution of SDSS J1004+4112 Revisited

, 2010
We present a strong lens analysis of SDSS J1004+4112, a unique quasar lens produced by a massive cluster of galaxies at z=0.68, using a newly developed software for gravitational lensing.
Oguri, Masamune
core   +1 more source

Alignments of the Dominant Galaxies in Poor Clusters [PDF]

, 1999
We have examined the orientations of brightest cluster galaxies (BCGs) in poor MKW and AWM clusters and find that, like their counterparts in richer Abell clusters, poor cluster BCGs exhibit a strong propensity to be aligned with the principal axes of ...
Binggeli B., Carter D., Jedrzejewski R. I., Michael J. West, Rhee G. F. R. N., Sastry G. N., Terry J. Bridges, Todd M. Fuller, West M. J.   +8 more
core   +2 more sources

The Emergence of a Brightest Cluster Galaxy in a Protocluster Core at z = 2.24

The Astrophysical Journal
We report the detection of a pair of massive quiescent galaxies likely in the process of merging at the center of the spectroscopically confirmed, extremely massive protocluster BOSS1244 at z = 2.24 ± 0.02.
Dong Dong Shi, Xin Wang, Xian Zhong Zheng, Zheng Cai, Xiaohui Fan, Fuyan Bian, Harry I. Teplitz   +6 more
doaj   +1 more source

Redshift Evolution of the Feedback–Cooling Equilibrium in the Core of 48 SPT Galaxy Clusters: A Joint Chandra–SPT–ATCA Analysis

The Astrophysical Journal, 2023
We analyze the cooling and feedback properties of 48 galaxy clusters at redshifts 0.4 < z < 1.3 selected from the South Pole Telescope (SPT) catalogs to evolve like the progenitors of massive and well-studied systems at z ∼ 0. We estimate the radio power
F. Ruppin, M. McDonald, J. Hlavacek-Larrondo, M. Bayliss, L. E. Bleem, M. Calzadilla, A. C. Edge, M. D. Filipović, B. Floyd, G. Garmire, G. Khullar, K. J. Kim, R. Kraft, G. Mahler, R. P. Norris, A. O’Brien, C. L. Reichardt, T. Somboonpanyakul, A. A. Stark, N. Tothill   +19 more
doaj   +1 more source

Review of asteroid, meteor, and meteorite‐type links

Meteoritics &Planetary Science, Volume 60, Issue 4, Page 928-973, April 2025.
Abstract With the goal to determine the origin of our meteorites in the asteroid belt, video and photographic observations of meteors have now tracked 75 meteorite falls. Six years ago, there were just hints that different meteorite types arrived on different orbits, but now, the number of orbits (N) is high enough for distinct patterns to emerge.
Peter Jenniskens, Hadrien A. R. Devillepoix   +1 more
wiley   +1 more source