Results 91 to 100 of about 6,067,242 (318)

Ring or No Ring—Revisiting the Multiphase Nuclear Environment in M31

The Astrophysical Journal
Nuclear rings, prevalent in barred galaxies, are essential to understanding gas transport toward galactic nuclei. However, the peculiar nuclear ring in our neighboring galaxy M31 remains poorly understood.
Zongnan Li, Zhao Su, Sumin Wang, Yufan F. Zhou, Zhiyuan Li, Xuanyi Lyu, Fanyi Meng, Kai Zhang, Di Li, Chaowei Tsai, Jingwen Wu, Jiachang Zhang   +11 more
doaj   +1 more source

SDSS-IV MaNGA: How Galaxy Interactions Influence Active Galactic Nuclei

The Astrophysical Journal, 2023
We present a comparative study of active galactic nuclei (AGN) between galaxy pairs and isolated galaxies with the final data release of the MaNGA integral field spectroscopic survey.
Joshua L. Steffen, Hai Fu, Joel R. Brownstein, J. M. Comerford, I. Cruz-González, Y. Sophia Dai, Niv Drory, Arran C. Gross, C. Alenka Negrete, Renbin Yan   +9 more
doaj   +1 more source

Global environmental effects versus galaxy interactions [PDF]

, 2009
We explore properties of close galaxy pairs and merging systems selected from the Sloan Digital Sky Survey Data Release 4 in different environments with the aim to assess the relative importance of the role of interactions over global environmental ...
Josefa Pérez, P. Tissera, N. Padilla, M. S. Alonso, Diego G. Lambas . Instituto de Astronomia y Fisica del Espacio, Ciudad de Buenos Aires, Argentina. Facultad de Ciencias Astronomia y Geofisica, U. L. Plata, A. C. C. N. D. I. C. Técnicas, Conicet, Argentina. Departamento de Astronomia y Astrofisica, P. U. C. D. Chile, Santiago, Chile. Complejo Astronomico El Leoncito, San Juan, Argentina Observatorio Astronomico de la Universidad Naciona Cordoba, Argentina.   +16 more
semanticscholar   +1 more source

Facilitating Reproducibility in Catalysis Research with Managed Workflows and RO‐Crates: A Galaxy Case Study

ChemCatChem, Accepted Article.
Publishing supporting data significantly impacts researchers' productivity, especially in experiments requiring extensive tracking of data, processing steps, parameters, and outputs. A managed workflow environment, combined with RO‐Crates, addresses these data management challenges. Workflows provide an alternative for handling complex data analyses by
Abraham Nieva de la Hidalga, Leandro Liborio, Patrick Austin, Subindev Devadasan, Tom Underwood, Alexander Belozerov, Martin Wilding, Nitya Ramanan, C. Richard A. Catlow   +8 more
wiley   +1 more source

A Physically Motivated Framework to Compare the Merger Timescales of Isolated Low- and High-mass Galaxy Pairs Across Cosmic Time

The Astrophysical Journal
The merger timescales of isolated low-mass pairs (10 ^8 < M _* < 5 × 10 ^9 M _⊙ ) on cosmologically motivated orbits have not yet been studied in detail, though isolated high-mass pairs (5 × 10 ^9 < M _* < 10 ^11 M _⊙ ) have been studied extensively.
Katie Chamberlain, Ekta Patel, Gurtina Besla, Paul Torrey, Vicente Rodriguez-Gomez   +4 more
doaj   +1 more source

HISTORY OF GALAXY INTERACTIONS AND THEIR IMPACT ON STAR FORMATION OVER THE LAST 7 Gyr FROM GEMS [PDF]

, 2009
We perform a comprehensive estimate of the frequency of galaxy mergers and their impact on star formation over z∼ 0.24–0.80 (lookback time Tb∼ 3–7 Gyr) using ∼3600 (M⩾ 1 × 109 M☉) galaxies with GEMS Hubble Space Telescope, COMBO-17, and Spitzer data. Our
S. Jogee, Sarah H. Miller, K. Penner, R. Skelton, C. Conselice, R. Somerville, E. Bell, Xianzhong Zheng, H. Rix, A. Robaina, F. Barazza, M. Barden, A. Borch, S. Beckwith, J. Caldwell, C. Peng, C. Heymans, D. H. Mcintosh, B. Häußler, K. Jahnke, K. Meisenheimer, S. Sánchez, L. Wisotzki, C. Wolf, C. Papovich   +24 more
semanticscholar   +1 more source

A review of multiscale numerical modeling of rock mechanics and rock engineering

Deep Underground Science and Engineering, EarlyView.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

SDSS-IV MaNGA: Spatial Evolution of Gas-phase Metallicity Changes Induced by Galaxy Interactions

The Astrophysical Journal
Gas-phase metallicity in interacting and merging galaxies offers key insights into their star formation processes and evolutionary histories. This study investigates the spatial evolution of gas-phase metallicity (i.e., oxygen abundance, 12 + log(O/H ...
Hsi-An Pan, Lihwai Lin, Sebastián F. Sánchez, Jorge K. Barrera-Ballesteros, Bau-Ching Hsieh   +4 more
doaj   +1 more source

Tilted Dark Halos Are Common and Long-lived, and Can Warp Galactic Disks

The Astrophysical Journal Letters, 2023
In the Lambda cold dark matter paradigm, the dark halo governs the gravitational potential within which a galaxy can form and evolve. In this Letter we show that the present-day inner ( r < 50 kpc) dark halo can be significantly misaligned with the ...
Jiwon Jesse Han, Vadim Semenov, Charlie Conroy, Lars Hernquist   +3 more
doaj   +1 more source

High‐Performance Stretchable Gallium Battery for Wearable Electronics, Through Synthesis of Foam Electrodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Foam electrode synthesis, characterization, and application as a cathode in batteries. The demand for sustainable and stretchable thin‐film printed batteries for bioelectronics, wearables, and e‐textiles is rapidly increasing. Recently, we developed a fully 3D‐printed soft‐matter thin‐film Ga‐Ag2O battery with 3R characteristics: resilient to ...
Elahe Parvini, Abdollah Hajalilou, Manuel Reis Carneiro, Pedro Alhais Lopes, Mahmoud Tavakoli   +4 more
wiley   +1 more source