Results 101 to 110 of about 51,405 (265)

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

The incorrect rotation curve of the Milky Way

, 2015
In the fundamental quest of the rotation curve of the Milky Way, the tangent-point (TP) method has long been the simplest way to infer velocities for the inner, low latitude regions of the Galactic disk from observations of the gas component. We test the
Chemin, Laurent, Renaud, Florent, Soubiran, Caroline   +2 more
core   +3 more sources

Observational Biases on Rotation Curves from Integral Field Unit Data at Cosmic Noon

The Astrophysical Journal
Through studying rotation curves, which depict how the velocity of the stars and gas changes with distance from the center of a galaxy, it has been confirmed that dark matter dominates galaxies’ outer regions, as their rotation curve remains flat ...
Amanda E. Araujo-Carvalho, Thiago S. Gonçalves, Davor Krajnović, Karín Menéndez-Delmestre, Natanael de Isídio   +4 more
doaj   +1 more source

Rotation curves of galaxies by fourth order gravity [PDF]

Physical Review D, 2011
We investigate the radial behavior of galactic rotation curves by a Fourth Order Gravity adding also the Dark Matter component. The Fourth Order Gravity is a Lagrangian containing the Ricci scalar, the Ricci and Riemann tensor, but the rotation curves are depending only on two free parameters.
Stabile, A., Scelza, G.
openaire   +2 more sources

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

The Mass of the Milky Way: Limits from a Newly Assembled Set of Halo Objects

, 2002
We set new limits on the mass of the Milky Way, making use of the latest kinematic information for Galactic satellites and halo objects. In order to bind these sample objects to the Galaxy, their rest-frame velocities must be lower than their escape ...
Alcock, Alcock, Anguita, Beers, Carney, Carretta, Carretta, Chen, Chiba, Christlieb, Côté, Dauphole, Dehnen, Dejonghe, Dinescu, Dinescu, Dinescu, Evans, Evans, Fich, Fricke, Harris, Held, Hernquist, Hog, Honma, Ibata, Johnston, Johnston, Kerr, Kinman, Kochanek, Kroupa, Leonard, Lindegren, Little, M. Chiba, Martin, Mateo, Merritt, Miyamoto, Miyamoto, Miyamoto, Méndez, Norris, Pedreros, Peebles, Platais, Preston, Preston, Preston, Rodgers, Schmoldt, Scholz, Siegel, Sommer-Larsen, T. C. Beers, T. Sakamoto, Unwin, Wang, Wilhelm, Wilhelm, Wilkinson, Zacharias, Zacharias, Zaritsky   +65 more
core   +1 more source

Static State of a Black Hole Supported by Dark Matter

Universe, 2019
The possibility of an equilibrium state of a gravitating scalar field (describing ordinary matter) inside a black hole, compressed to the state of boson condensate, in balance with a longitudinal vector field (describing dark matter) from the outside, is
Boris E. Meierovich
doaj   +1 more source

KURVS: the outer rotation curve shapes and dark matter fractions of z ∼ 1.5 star-forming galaxies [PDF]

, 2023
Annagrazia Puglisi, U Dudzevičiūtė, A. M. Swinbank, Steven Gillman, Alfred L Tiley, R. G. Bower, Michele Cirasuolo, L. Cortese, Karl Glazebrook, C. M. Harrison, E. Ibar, Juan Molina, Danail Obreschkow, Kyle A. Oman, Matthieu Schaller, Francesco Shankar, R. M. Sharples   +16 more
openalex   +1 more source

Rotation curves of galaxies in GR

, 2023
It has been suggested that the observed flat rotation curves of disk galaxies can be a peculiar effect of General Relativity (GR) rather than evidence for the presence of dark matter (DM) halos in Newtonian gravity. In Ciotti (2022) the problem has been quantitatively addressed by using the well known weak-field, low-velocity gravitomagnetic limit of ...
openaire   +2 more sources

The universal rotation curve of dwarf disc galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
We use the concept of the spiral rotation curves universality to investigate the luminous and dark matter properties of the dwarf disc galaxies in the local volume (size $\sim11$ Mpc). Our sample includes 36 objects with rotation curves carefully selected from the literature.
Karukes E. V., Salucci P.
openaire   +4 more sources