Results 71 to 80 of about 744 (267)

Star Formation and Dust in the Cosmic Web

The Astrophysical Journal
The large-scale environment of the cosmic web is believed to impact galaxy evolution, but there is still no consensus regarding the mechanisms. We use a semi-analytic model (SAM) galaxy catalog to study the star formation and dust content of local ...
Massimiliano Parente, Cinthia Ragone-Figueroa, Pablo López, Héctor J. Martínez, Andrés N. Ruiz, Laura Ceccarelli, Valeria Coenda, Facundo Rodriguez, Gian Luigi Granato, Andrea Lapi, Rien van de Weygaert   +10 more
doaj   +1 more source

The molecular and atomic hydrogen gas content of the Boötes Void galaxy CG 910

Astronomy & Astrophysics
Context. Void galaxies are located in the most under-dense environments of the Universe, where the number density of galaxies is extremely low. They are, hence, good targets for studying the secular evolution of galaxies and the slow buildup of stellar ...
Sharma Ekta, Biswas Prerana, Das Mousumi, Winkel Benjamin, Li Di, Zheng Zheng   +5 more
doaj   +1 more source

An autonomous and economical benthic incubation chamber for measuring dissolved oxygen fluxes in shallow, low‐flow environments

Limnology and Oceanography: Methods, EarlyView.
Abstract Benthic incubation chambers enclose a known volume of water overlying a known area to measure water chemistry changes and are typically used to quantify the metabolic activity of benthic organisms or communities. Here we present an economical benthic incubation chamber for shallow, low‐flow environments, built using off‐the‐shelf components ...
Luke D. Groff, Peter Berg, Karen J. McGlathery   +2 more
wiley   +1 more source

Exploring the History of Stellar Mergers with Chemistry: Examining the Origins of Massive α-enriched Stars Using Carbon Isotope Ratios

The Astrophysical Journal
Recently discovered massive α -enriched (MAE) stars have surface chemistry consistent with members of the older, thick-disk Milky Way population but high masses (∼1.5–3 M _⊙ ) that suggest these stars are young.
Zachary G. Maas, Keith Hawkins, Jeffrey M. Gerber, Zoe Hackshaw, Catherine Manea   +4 more
doaj   +1 more source

The origin of gas stripping of galaxies in group environments

Astronomy & Astrophysics
We investigate how low-mass group environments (Mvir ∼ 1012 − 13 M⊙) influence the gas content of their satellite galaxies with M* > 107 M⊙ using the NEWHORIZON2 simulation.
Rhee Jinsu, Pichon Christophe, Dubois Yohan, Yi Sukyoung K., Ko Jongwan, Sheen Yun-Kyeong, Han San, Jeon Seyoung, Jang J. K., Lee Wonki, Contini Emanuele, Lee Bumhyun, Lee Jaehyun, Kraljic Katarina, Peirani Sébastien   +14 more
doaj   +1 more source

Patterns of wild meat and other protein consumption in the periphery of Salonga National Park, Democratic Republic of the Congo

People and Nature, EarlyView.
Abstract In Central Africa, human activities are severely impacting terrestrial and aquatic wildlife, threatening the food security of millions of people. Accordingly, sustainable use of wildlife is crucial for the nutrition and livelihoods of many rural communities in the region.
Zolo Admettons, Mattia Bessone, Josué Ausse Baraka, Josué Engombe Botomia, Espérance Miezi, Bénédicte Nsilu, Jonathan Nkamisha Mukole, Michel Opelele Omeno, Jean Semeki Ngabinzeke, Barbara Fruth   +9 more
wiley   +1 more source

PANCAKE: A Python-based Numerical Color–Magnitude Diagram Analysis Package

The Astrophysical Journal Supplement Series
Stellar populations serve as a fossil record of galaxy formation and evolution, providing crucial information about the history of star formation and galaxy evolution.
Yun Zheng, Yujiao Yang, Yong-Kun Zhang, Zheng Zheng, Jing Wang, Lister Staveley-Smith, Chao-Wei Tsai, Di Li, Chao Liu, Jingjing Hu, Huaxi Chen, Donghui Quan, Yinghui Zheng, Hangyuan Li   +13 more
doaj   +1 more source

The Curious Case of CysE: Diversity and Distribution of Serine Acetyltransferases in Bacteria

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Serine acetyltransferase (CysE) is a member of the left‐handed β‐helix family of acetyltransferases that catalyze the rate limiting step in de novo cysteine biosynthesis. There are two isoforms of CysE that differ in length, with the shorter isoform lacking approximately 76 amino acids at the N‐terminus of the protein from the serine ...
Keely E. A. Oldham, Adele K. Williamson, Emily K. Grout, Joanna L. Hicks   +3 more
wiley   +1 more source

Stellar Populations with MaNGA: Iron Kink and Nitrogen Fuzz

The Astrophysical Journal
Recent analysis of 2968 MaNGA early-type galaxies has yielded two notable trends with velocity dispersion ( σ ) not previously discussed in the literature. First, Fe abundance rises with σ but only until σ  ≈ 100 km s ^−1 , after which it falls.
Guy Worthey, Tathagata Pal
doaj   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source