Results 131 to 140 of about 482,012 (314)

An investigation of star formation and dust attenuation in major mergers using ultraviolet and infrared data

, 2012
Merger processes play an important role in galaxy formation and evolution. To study the influence of merger processes on the evolution of dust properties and cosmic star formation rate, we investigate a local sample of major merger galaxies and a control
Buat, V., Burgarella, D., Iglesias-Páramo, J., Matsuoka, Y., Takeuchi, T. T., Yuan, F. -T.   +5 more
core   +3 more sources

A DIVERSITY OF PROGENITORS AND HISTORIES FOR ISOLATED SPIRAL GALAXIES [PDF]

, 2012
We analyze a suite of 33 cosmological simulations of the evolution of Milky-Way-mass galaxies in low-density environments. Our sample spans a broad range of Hubble types at z = 0, from nearly bulgeless disks to bulge-dominated galaxies.
M. Martig, F. Bournaud, D. Croton, A. Dekel, R. Teyssier   +4 more
semanticscholar   +1 more source

Enhanced Radiation Exposure of Airline Crew and Passengers During the May 2024 Geomagnetic Storm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Enhanced radiation at aviation altitudes is a concern for flight crew and passengers. During space weather events, solar flares and coronal mass ejection (CME) driven shocks are sources of energetic particles that can reach Earth's near‐space environment and interact with its magnetic field and atmosphere.
Homayon Aryan, Jacob Bortnik, W. Kent Tobiska, Piyush Mehta, Benjamin Hogan, Rashmi Siddalingappa, Harshitha Challa   +6 more
wiley   +1 more source

A Chandra Virgo cluster survey of spiral galaxies – I. Introduction to the survey and a new ULX sample [PDF]

, 2022
Roberto Soria, Mari Kolehmainen, Alister W. Graham, Douglas A. Swartz, Mihoko Yukita, C. Motch, T. H. Jarrett, J. C. A. Miller‐Jones, Richard M. Plotkin, Thomas J. Maccarone, Laura Ferrarese, Alexander Guest, A. Lançon   +12 more
openalex   +1 more source

Characterisation of a Novel Jumbo Lytic Aeromonas dhakensis Bacteriophage P19 and Its Endolysin

Microbial Biotechnology, Volume 19, Issue 1, January 2026.
A jumbo, lytic myovirus phage P19 against multidrug‐resistant (MDR) Aeromonas dhakensis was isolated from river water. P19 demonstrated robust lytic activity, high thermal and pH stability (pH 6–10, up to 60°C), and no genes associated with lysogeny, virulence or antimicrobial resistance. ORF_358 of P19 encodes for T4‐type lysozyme.
Farhat Ansari, Vandan Nagar
wiley   +1 more source

SPARC: MASS MODELS FOR 175 DISK GALAXIES WITH SPITZER PHOTOMETRY AND ACCURATE ROTATION CURVES [PDF]

, 2016
We introduce SPARC (Spitzer Photometry and Accurate Rotation Curves): a sample of 175 nearby galaxies with new surface photometry at 3.6 μm and high-quality rotation curves from previous H i/Hα studies.
F. Lelli, S. McGaugh, J. Schombert
semanticscholar   +1 more source

Solar Energetic Particle Events During May 2024 Geomagnetic Superstorm

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Three solar energetic particle (SEP) events originating from solar active region 13664 occurred on 10–16 May 2024, coinciding with a geomagnetic superstorm. Using data from the Geostationary Operational Environmental Satellites and Meteorological Operational satellite‐C, we investigate the energetic proton fluxes and east‐west flux ratios in ...
Zhenghao She, Hui Zhu, Xiangliang Kong, Yao Chen, Yingying Zhao, Huicong Chen, Zhijie Qin, Wenqing Ma   +7 more
wiley   +1 more source

The different star formation histories of blue and red spiral and elliptical galaxies [PDF]

, 2013
We study the spectral properties of intermediate mass galaxies (M* ∼ 1010.7 M⊙) as a function of colour and morphology. We use Galaxy Zoo to define three morphological classes of galaxies, namely early types (ellipticals), late-type (disc-dominated) face-
R. Tojeiro, K. Masters, Joshua Richards, W. Percival, S. Bamford, C. Maraston, R. Nichol, R. Skibba, D. Thomas   +8 more
semanticscholar   +1 more source

Commissioning of a combined stereoscopic x‐ray and surface guided radiotherapy system for performing breath hold gated lung radiotherapy

Journal of Applied Clinical Medical Physics, Volume 26, Issue 12, December 2025.
Abstract Background ExacTrac Dynamic (ETD) is a novel patient positioning and motion management system for radiation therapy that combines surface guidance, thermal imaging, and stereoscopic x‐rays for image guidance. This combination of technology enables both intrafraction monitoring and surface‐based breath hold gating capabilities.
Garrett C. Baltz, Steven M. Kirsner
wiley   +1 more source

Automated Quantitative Description of Spiral Galaxy Arm-Segment Structure [PDF]

, 2013
We describe a system for the automatic quantification of structure in spiral galaxies. This enables translation of sky survey images into data needed to help address fundamental astrophysical questions such as the origin of spiral structure---a ...
Davis, Darren, Hayes, Wayne
core