Results 71 to 80 of about 49,283 (254)

Lactea: Web‐Based Spectrum‐Preserving Multi‐Resolution Visualization of the GAIA Star Catalog

Computer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract The explosion of data in astronomy has resulted in an era of unprecedented opportunities for discovery. The GAIA mission's catalog, containing a large number of light sources (mostly stars) with several parameters such as sky position and proper motion, is playing a significant role in advancing astronomy research and has been crucial in ...
Reem Alghamdi, Markus Hadwiger, Guido Reina, Alberto Jaspe‐Villanueva   +3 more
wiley   +1 more source

Environmental Effects on the Stellar Mass Function in a z ∼ 3.3 Overdensity of Galaxies in the COSMOS Field

The Astrophysical Journal
We present an analysis of the number density of galaxies as a function of stellar mass (i.e., the stellar mass function (SMF)) in the COSMOS field at z ∼ 3.3, making a comparison between the SMF in overdense environments and the SMF in the coeval field ...
Ben Forrest, Brian C. Lemaux, Ekta A. Shah, Priti Staab, Roy R. Gal, Lori M. Lubin, M. C. Cooper, Olga Cucciati, Denise Hung, Ian McConachie, Adam Muzzin, Gillian Wilson, Sandro Bardelli, Letizia P. Cassarà, Wenjun Chang, Finn Giddings, Emmet Golden-Marx, Nimish Hathi, Stephanie M. Urbano Stawinski, Elena Zucca   +19 more
doaj   +1 more source

swPHoToNs: Toward trillion‐body‐scale cosmological N‐body simulations on Sunway TaihuLight supercomputer

Engineering Reports, Volume 7, Issue 3, March 2025.
We present the details of implementing a highly efficient and scalable Cosmological N‐body simulation framework on the heterogeneous many‐core supercomputer Sunway TaihuLight. We manage to conduct cosmological simulations which contain up to 1.6 trillion particles, obtaining a sustained performance of 56.3 PFlops with a weak‐scaling parallel efficiency
Zhao Liu, Qiao Wang, Xiaojing Lv, Xu Liu, Hongsong Meng, Guanghui Zhu, Liang Gao, Haohuan Fu, Guangwen Yang   +8 more
wiley   +1 more source

Modeling and Subtracting Diffuse Cluster Light in JWST Images: A Relation between the Spatial Distribution of Globular Clusters, Dwarf Galaxies, and Intracluster Light in the Lensing Cluster SMACS 0723

The Astrophysical Journal
We present a methodology for modeling and removing light from cluster galaxies and intracluster light (ICL) from James Webb Space Telescope images of gravitational lensing clusters.
Nicholas S. Martis, Ghassan T. E. Sarrouh, Chris J. Willott, Roberto Abraham, Yoshihisa Asada, Maruša Bradač, Gabriel B. Brammer, Guillaume Desprez, Anishya Harshan, Adam Muzzin, Gaël Noirot, Gregor Rihtaršič, Marcin Sawicki, Victoria Strait   +13 more
doaj   +1 more source

Constraining the Redshift Evolution of FIRST Radio Sources in RCS1 Galaxy Clusters

, 2010
We conduct a statistical analysis of the radio source population in galaxy clusters as a function of redshift by matching radio sources from the Faint Images of the Radio Sky at Twenty-Centimeters (FIRST) catalog with 618 optically-selected galaxy ...
Barrientos, L. Felipe, Gladders, Michael D., Gralla, Megan B., Yee, H. K. C.   +3 more
core   +1 more source

Testing Cosmology with Extreme Galaxy Clusters [PDF]

, 2012
Motivated by recent suggestions that a number of observed galaxy clusters have masses which are too high for their given redshift to occur naturally in a standard model cosmology, we use Extreme Value Statistics to construct confidence regions in the ...
Aghanim, Baldi, Baldi, Baldi, Baldi, Brax, Brodwin, Cayón, Davis, Desjacques, Enqvist, Ferraro, Foley, Gumbel, Harrison, Hoyle, Ian Harrison, Jee, Jimenez, Katz, Komatsu, Lo Verde, Lucchin, Maughan, Mortonson, Peter Coles, Pillepich, Santos, Schmidt, Tinker, Waizmann, Waizmann, Zhao   +32 more
core   +2 more sources

Searching the Non‐Accreting White Dwarf Population in eROSITA Data

Astronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT eROSITA is the soft X‐ray instrument aboard the Spectrum Roentgen Gamma (SRG) satellite that is most sensitive in the energy range between 0.2 and 2.3 keV. Between December 2019 and December 2021, eROSITA completed four all‐sky surveys, producing all‐sky X‐ray source lists and sky maps of unprecedented depth.
S. Friedrich, C. Maitra, K. Dennerl, A. Schwope, K. Werner, B. Stelzer   +5 more
wiley   +1 more source

A GMBCG Galaxy Cluster Catalog of 55,424 Rich Clusters from SDSS DR7

, 2010
We present a large catalog of optically selected galaxy clusters from the application of a new Gaussian Mixture Brightest Cluster Galaxy (GMBCG) algorithm to SDSS Data Release 7 data.
Abazajian, Abell, Adami, Annis, August Evrard, Barger, Barrientos, Bartelmann, Benjamin P. Koester, Berlind, Bernstein, Blakeslee, Blakeslee, Blanton, Bower, Burenin, Böhringer, Couch, David E. Johnston, David Gerdes, Dong, Eduardo Rozo, Efstathiou, Eisenhardt, Eisenstein, Eli S. Rykoff, Erin Sheldon, Gal, Gal, Gal, Gerdes, Gladders, Gladders, Gladders, Gladders, Gladders, Goto, Hansen, Hao, Hao, Hao, Hao, James Annis, Jiangang Hao, Johnston, Kepner, Kim, Koester, Koester, Li, Lopes, López-Cruz, Majumdar, Matthew Becker, Mei, Michael Busha, Miller, Mullis, Navarro, Oukbir, Oyaizu, Papovich, Perlmutter, Postman, Ramella, Riess, Risa H. Wechsler, Rozo, Rozo, Rozo, Rozo, Rykoff, Seth R. Siegel, Sheldon, Silverman, Spergel, Spergel, The Dark Energy Survey Collaboration., Timothy A. McKay, Wen, Yang, York   +81 more
core   +2 more sources

Probing extreme black‐hole outflows on short timescales via high spectral‐resolution x‐ray imagers

Astronomische Nachrichten, Volume 345, Issue 6-7, July-August 2024.
Abstract We investigate outflows and the physics of super‐Eddington versus sub‐Eddington regimes in black hole systems. Our focus is on prospective science using next‐generation high‐resolution soft x‐ray instruments. We highlight the properties of black hole ultraluminous x‐ray source (ULX) systems in particular. Owing to scale invariance in accreting
C. Pinto, J. F. Steiner, A. Bodaghee, P. Chakraborty, M. Sobolewska, D. R. Pasham, A. Ogorzalek, J. Zuhone, A. Bogdan, M. Vogelsberger   +9 more
wiley   +1 more source

New Roads to the Small-scale Universe: Measurements of the Clustering of Matter with the High-redshift UV Galaxy Luminosity Function [PDF]

, 2022
Nashwan Sabti, Julián B. Muñoz, Diego Blas   +2 more
openalex   +1 more source