Results 51 to 60 of about 617 (181)

Impact of the invasive diatom species Cymbella janischii on riverine microbial biofilm communities and a potential role of bacterially produced zeatin

Journal of Phycology, EarlyView.
Abstract The diatom Cymbella janischii is an invasive species in Japan, causing nuisance blooms by forming thick mats in rivers. To date, there are no documented studies on the microbiome associations in C. janischii mats or the processes that drive bloom formation.
Eldrin D. L. R. Arguelles, Kana Mugikura, Shinya Sato   +2 more
wiley   +1 more source

Signatures of dark matter halo expansion in galaxy populations [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
Dark matter cores within galaxy haloes can be formed by energy feedback from star forming regions: an energy balance suggests that the maximum core formation efficiency arises in galaxies with M$_{\star}\sim10^{8.5}$M$_{\odot}$. We show that a model population of galaxies, in which the density profile has been modified by such baryonic feedback, is ...
Brook, Chris B., Di Cintio, Arianna
openaire   +4 more sources

EDGE: the shape of dark matter haloes in the faintest galaxies

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT Collisionless dark matter only (DMO) structure formation simulations predict that dark matter (DM) haloes are prolate in their centres and triaxial towards their outskirts. The addition of gas condensation transforms the central DM shape to be rounder and more oblate.
Matthew D A Orkney, Ethan Taylor, Justin I Read, Martin P Rey, A Pontzen, Oscar Agertz, Stacy Y Kim, Maxime Delorme   +7 more
openaire   +6 more sources

The Outskirt Stellar Mass of Low-redshift Massive Galaxies Is an Excellent Halo Mass Proxy in Illustris/IllustrisTNG Simulations

The Astrophysical Journal
Recent observations suggest that the extended stellar halos of low-redshift massive galaxies are tightly connected to the assembly of their dark matter halos.
Shuo Xu, Song Huang, Alexie Leauthaud, Benedikt Diemer, Katya Leidig, Carlo Cannarozzo, Conghao Zhou   +6 more
doaj   +1 more source

The AIDA-TNG project: 3D halo shapes

Astronomy & Astrophysics
Context. The shapes of dark matter halos can be used to constrain the fundamental properties of dark matter. In standard cold dark matter (CDM) cosmologies, halos are typically triaxial, with a preference for prolate configurations; however, including ...
Giocoli C., Despali G., Moscardini L., Meneghetti M., Sheth R. K., Pillepich A., Vogelsberger M.   +6 more
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

Closing the Gap between Observed Low-mass Galaxy H i Kinematics and Cold Dark Matter Predictions

The Astrophysical Journal
Testing the standard cosmological model (ΛCDM) at small scales is challenging. Galaxies that inhabit low-mass dark matter halos provide an ideal test bed for dark matter models by linking observational properties of galaxies at small scales (low mass ...
Amy Sardone, Annika H. G. Peter, Alyson M. Brooks, Jane Kaczmarek   +3 more
doaj   +1 more source

Halo Properties from Observable Measures of Environment: I. Halo and Subhalo Masses

The Open Journal of Astrophysics, 2023
The stellar mass - halo mass relation provides a strong basis for connecting galaxies to their host dark matter halos in both simulations and observations.
Haley Bowden, Peter Behroozi, Andrew Hearin   +2 more
doaj   +1 more source

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 Cherenkov Radiation in the Galaxy’s Halo of Dark Matter

International Journal of Astronomy and Astrophysics, 2013
The effect of light refraction in a galaxy halo of dark matter, described by profiles of Navarro-Frenk-White and Burkett, was considered. Powers of the Cherenkov radiation for the refractive indexes of gravitational fields with these profiles were calculated.
openaire   +3 more sources