Results 121 to 130 of about 68,679 (236)

Galaxy Superclusters and Their Complexes in the Cosmic Web

Universe
The richest and largest structures in the cosmic web are galaxy superclusters, their complexes (associations of several almost connected very rich superclusters), and planes.
Maret Einasto
doaj   +1 more source

Women in space: A review of known physiological adaptations and health perspectives

Experimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford, Danielle J. Carroll, Heather C. M. Allaway, Bonnie J. Dunbar, Aenor J. Sawyer   +4 more
wiley   +1 more source

GROUPINGS OF POPULATION I OBJECTS IN THE GALAXY

Odessa Astronomical Publications, 2017
The distribution of Cepheids in the Galaxy is studied using a new catalogue of Cepheid distances in conjunction with the method of hierarchical clustering.
L. N. Berdnikov, Yu. N. Efremov, E. V. Glushkova, D. G. Turner   +3 more
doaj   +1 more source

50% body weight loading reduces stature increases and lumbar disc expansion from 4 h hyper‐buoyancy floatation versus 15 min sitting upright

Experimental Physiology, EarlyView.
Abstract Microgravity is associated with stature increases, back pain and post‐flight intervertebral disc (IVD) herniation. This study aims to determine whether 30 s seated 50% body weight (BW) axial loading is comparable to 15 min sitting upright in 1 g upon changes in stature, anterior lumbar IVD height (via ultrasound), passive vertebral stiffness ...
David Marcos‐Lorenzo, Christina Lysandrou, Laura Sudres, Alfonso Gil‐Martinez, Jaap Swanenburg, James Edward Clark, David Andrew Green   +6 more
wiley   +1 more source

Tracing Early Cosmic Chemical Enrichment: A Uniform XMM-Newton Survey of Metallicity in Galaxy Groups and Clusters

The Astrophysical Journal
Observed metal abundances in the intracluster medium (ICM) of galaxy groups and clusters, Z _ICM , exceed what is expected from present-day stellar populations alone.
Anne E. Blackwell, Joel N. Bregman, Sophia Chan Davis   +2 more
doaj   +1 more source

Stellar populations in superclusters of galaxies

, 2012
A catalogue of superclusters of galaxies is used to investigate the influence of the supercluster environment on galaxy populations, considering galaxies brighter than M ...
Costa-Duarte, M. V., Durret, F., Sodre Jr, L.   +2 more
core   +2 more sources

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

The XMAGNET Exascale MHD Simulations of SMBH Feedback in Galaxy Groups and Clusters: Overview and Preliminary Cluster Results

The Astrophysical Journal
We present initial results from extremely well-resolved 3D magnetohydrodynamical simulations of idealized galaxy clusters, conducted using the AthenaPK code on the Frontier exascale supercomputer.
Philipp Grete, Brian W. O’Shea, Forrest W. Glines, Deovrat Prasad, Benjamin D. Wibking, Martin Fournier, Marcus Brüggen, G. Mark Voit   +7 more
doaj   +1 more source

Hot Gas in Galaxy Groups: Recent Observations

, 2012
Galaxy groups are the least massive systems where the bulk of baryons begin to be accounted for. Not simply the scaled-down versions of rich clusters following self-similar relations, galaxy groups are ideal systems to study baryon physics, which is ...
Baumgartner W H, Bower R G, Buote D A, Buote D A, Burenin R A, Bîrzan L, Cavagnolo K W, Cavagnolo K W, Cavagnolo K W, Dai X, Diehl S, Dunkley J, Dunn R J H, Eckert D, Finoguenov A, Finoguenov A, Freeland E, Fukazawa T, Gastaldello F, Giodini S, Gitti M, Gonzalez A H, Helsdon S F, Humphrey P J, Humphrey P J, Humphrey P J, Koester B P, Komatsu E, Komiyama M, Leauthaud A, Leauthaud A, Lin Y T, Lin Y T, Lueker M, M Sun, Mahdavi A, Maughan B J, McCarthy I G, McDonald M, McNamara B R, Motl P M, Mulchaey J S, Murakami H, Nagai D, O'Hara T B, O'Sullivan E, Puchwein E, Rafferty D A, Randall S W, Rasia E, Rasmussen J, Reichardt C L, Renzini A, Rozo E, Rozo E, Rykoff E S, Sato K, Sehgal N, Shaw L D, Shirokoff E, Sun M, Sun M, Sun M, Sun M, Sun M, Tonry J L, Trac H, Vikhlinin A, Vikhlinin A, Vikhlinin A, von der Linden A, Wetzel A R Tinker J L Conroy C   +71 more
core   +1 more source

The evolution of the star formation activity per halo mass up to redshift ~1.6 as seen by Herschel [PDF]

, 2012
Aims. Star formation in massive galaxies is quenched at some point during hierarchical mass assembly. To understand where and when the quenching processes takes place, we study the evolution of the total star formation rate per unit total halo mass (Σ ...
Capak, P., Fadda, D., Popesso, P.
core