Results 1 to 10 of about 109,364 (298)
Magnetic spiral arms and galactic outflows [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2014 AbstractGalactic magnetic arms have been observed between the gaseous arms of some spiral galaxies; their origin remains unclear. We suggest that magnetic spiral arms can be naturally generated in the interarm regions because the galactic fountain flow or wind is likely to be weaker there than in the arms.
Chamandy L, Shukurov A, Subramanian K
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Impact of Calcium and Potassium Currents on Spiral Wave Dynamics in the LR1 Model [PDF]
EntropySpiral wave dynamics in cardiac tissue are critically implicated in the pathogenesis of arrhythmias. This study investigates the effects of modulating calcium and potassium currents on spiral wave stability in a two-dimensional cardiac model.
Xiaoping Yuan, Qianqian Zheng
doaj +2 more sources
Revisiting Galactic Disk and Spiral Arms Using Open Clusters
The Astronomical Journal, 2023 We use the largest catalog of open clusters in the post-Gaia era to provide an observational view of the Galactic disk. By compiling physical parameters such as age, distance, and kinematic information, we investigate the spatial distribution of open ...
Yogesh C. Joshi, Sagar Malhotra
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A Comparison of the Simulations and Observations for a Nearby Spiral Arm
Frontiers in Astronomy and Space Sciences, 2021 The analysis is focused on the ability of galactic open clusters to trace the spiral arms, based on the recent data releases from Gaia. For this, a simple 1D description of the motion of spiral arms and clusters is introduced.
Martin Piecka, Ernst Paunzen
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Dynamically Driven Evolution of the Interstellar Medium in M51 [PDF]
, 2009 We report the highest-fidelity observations of the spiral galaxy M51 in CO emission, revealing the evolution of giant molecular clouds (GMCs) vis-a-vis the large-scale galactic structure and dynamics.
Aalto +48 more
core +3 more sources
The Spiral Structure in the Solar Neighborhood
Frontiers in Astronomy and Space Sciences, 2021 The spiral structure in the solar neighborhood is an important issue in astronomy. In the past few years, there has been significant progress in observation. The distances for a large number of good spiral tracers, i.e., giant molecular clouds, high-mass
L. G. Hou
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GALACTIC SPIRAL ARMS BY SWING AMPLIFICATION [PDF]
The Astrophysical Journal, 2016 ABSTRACT Based on the swing amplification model of Julian & Toomre, we investigate the formation and structure of stellar spirals in disk galaxies. We calculate the pitch angle, wavelengths, and amplification factor of the most amplified mode.
Michikoshi, Shugo, Kokubo, Eiichiro
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The Identification of a Dusty Multiarm Spiral Galaxy at z = 3.06 with JWST and ALMA
The Astrophysical Journal Letters, 2022 Spiral arms serve crucial purposes in star formation and galaxy evolution. In this paper, we report the identification of “A2744-DSG- z 3,” a dusty, multiarm spiral galaxy at z = 3.059 using the James Webb Space Telescope (JWST) NIRISS imaging and grism ...
Yunjing Wu +15 more
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An Updated View of the Milky Way from Maser Astrometry
Universe, 2022 Astrometric observations of maser sources in the Milky Way, using the Very Long Baseline Interferometry (VLBI) technique, have been exploited to determine the spiral structure of our Galaxy. Several major spiral arms have now been pinpointed in the first
Katharina Immer, Kazi L. J. Rygl
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PITCH ANGLE OF GALACTIC SPIRAL ARMS [PDF]
The Astrophysical Journal, 2014 17 pages, 8 figures, accepted for publication in ...
Michikoshi, Shugo, Kokubo, Eiichiro
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