Results 141 to 150 of about 7,808,989 (241)

The MUSE Ultra Deep Field (MUDF). V. Characterizing the Mass–Metallicity Relation for Low-mass Galaxies at z ∼ 1–2

The Astrophysical Journal
Using more than 100 galaxies in the MUSE Ultra Deep Field with spectroscopy from the Hubble Space Telescope’s (HST) Wide Field Camera 3 and the Very Large Telescope’s Multi Unit Spectroscopic Explorer, we extend the gas-phase mass–metallicity relation ...
Mitchell Revalski, Marc Rafelski, Alaina Henry, Matteo Fossati, Michele Fumagalli, Rajeshwari Dutta, Norbert Pirzkal, Alexander Beckett, Fabrizio Arrigoni Battaia, Pratika Dayal, Valentina D’Odorico, Elisabeta Lusso, Kalina V. Nedkova, Laura J. Prichard, Casey Papovich, Celine Peroux   +15 more
doaj   +1 more source

Comparative Analysis of Colletotrichum Isolates From Apple Tree Reveals Differences in Response to Temperature, Organ Preference and Cultivar Affinity

Plant Pathology, Volume 75, Issue 5, September‐October 2026.
Colletotrichum siamense, C. grossum, C. chrysophilum and C. fioriniae, associated with apple bitter rot and Glomerella leaf spot, exhibited distinct thermotolerance patterns both in vitro and in planta, along with differences in spore germination and the colonization of apple fruits and leaves.
Martina Calì, Vicelina Sousa, Riccardo Baroncelli, Pedro Talhinhas, Antonio Prodi   +4 more
wiley   +1 more source

When Communication Enables Catastrophe: Nuclear Risk and the Short Lifetimes of Technological Civilizations

Risk Analysis, Volume 46, Issue 9, September 2026.
ABSTRACT The Fermi paradox may partly reflect technological self‐destruction acting as a Great Filter during post‐industrial development. Because the empirical record consists of a single civilization observed over an eighty‐year nuclear age, the exercise reported here is best understood as a structured, historically anchored scenario analysis rather ...
Vincenzo Alfano
wiley   +1 more source

Chemical evolution and abundance gradients in spiral galaxies

, 2013
Chemical evo-\ud lution models of spiral galaxies require observational constraints in order to make accurate predictions\ud concerning interstellar abundances, star formation history, age-metallicity relations, etc.
Maciel, Walter Junqueira
core  

On the Evolutionary History of a Simulated Disk Galaxy as Seen by Phylogenetic Trees

The Astrophysical Journal
Phylogenetic methods have long been used in biology and more recently have been extended to other fields—for example, linguistics and technology—to study evolutionary histories.
Danielle de Brito Silva, Paula Jofré, Patricia B. Tissera, Keaghan J. Yaxley, Jenny Gonzalez Jara, Camilla J. L. Eldridge, Emanuel Sillero, Robert M. Yates, Xia Hua, Payel Das, Claudia Aguilera-Gómez, Evelyn J. Johnston, Alvaro Rojas-Arriagada, Robert Foley, Gerard Gilmore   +14 more
doaj   +1 more source

Unraveling Chemical Enrichment in Extreme Emission-Line Galaxies: A Multi-Element Bayesian View of Bursty Star Formation and Galaxy Evolution in DESI [PDF]

Razieh Emami, James AA Trussler, Tiger Y. -Y Hsiao, Kaley Brauer, Lars Hernquist, Randall Smith, Douglas P. Finkbeiner, Fengwu Sun, Rebecca Davies, James F. Steiner, Mark Vogelsberger, Tobias J. Looser, Grant R Tremblay, Letizia Bugiani   +13 more
openalex   +1 more source

Low‐dose X‐ray radiation induces an adaptive response: A potential countermeasure to galactic cosmic radiation exposure

Experimental Physiology, Volume 111, Issue 9, Page 3919-3927, 1 September 2026.
Abstract Space exploration involves many dangers including galactic cosmic radiation (GCR). This class of radiation includes high‐energy protons and heavy ionizing ions. NASA has defined GCR as a carcinogenic risk for long‐duration space missions. To date, no clear strategy has been developed to counter chronic GCR exposure.
Siena Edwards, Jessica Adams, Anastasia Tchernikov, John G. Edwards   +3 more
wiley   +1 more source

An Analytical Galactic Chemical Evolution Model with Gas Inflow and a Terminal Wind

The Astrophysical Journal
We present a new analytical galactic chemical evolution (GCE) model with gas inflow, internally caused outflow, and extra gas loss after a period of time. The latter mimics the ram pressure stripping of a dwarf satellite galaxy near the pericenter of its
Kateryna A. Kvasova, Evan N. Kirby
doaj   +1 more source

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

Experimental Physiology, Volume 111, Issue 9, Page 4015-4040, 1 September 2026.
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

A model for a two component galaxy

, 1978
A simple galactic-structure model is developed in which the galaxy is considered as a two-component-halo-disk structure. The model treats a galaxy as composed of two different axially deformed polytropic structures, homocentrical and coaxial, with ...
DALLAPORTA, NICOLO', CAIMMI, ROBERTO, SECCO, LUIGI ENRICO   +2 more
core