Results 41 to 50 of about 30,211 (248)
Mechanisms based on chaotic flows that support structures in barred-spiral systems
EPJ Web of Conferences, 2012 I summarize the dynamical mechanisms that have been found to shape structures such as the spirals and the bars in barred-spiral systems. Response models and orbital analysis are used to study the dynamics in potentials estimated from near-infrared images
Patsis P.A.
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CO Multi-line Imaging of Nearby Galaxies (COMING): I. Physical properties of molecular gas in the barred spiral galaxy NGC 2903 [PDF]
, 2016 We present simultaneous mappings of J=1-0 emission of 12CO, 13CO, and C18O molecules toward the whole disk (8' x 5' or 20.8 kpc x 13.0 kpc) of the nearby barred spiral galaxy NGC 2903 with the Nobeyama Radio Observatory 45-m telescope at an effective ...
K. Muraoka +18 more
semanticscholar +1 more source
The Astrophysical Journal Letters, 2023 Large-scale bars can fuel galaxy centers with molecular gas, often leading to the development of dense ringlike structures where intense star formation occurs, forming a very different environment compared to galactic disks.
Eva Schinnerer +39 more
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Molecular Bars in Spiral Galaxies [PDF]
International Astronomical Union Colloquium, 1996 Images of molecular gas in spiral galaxies show two types of bar structure: large-scale bars, which are correlated with the presence of stellar bars, and generally follow the spiral structure, and nuclear “bars” of a few hundred parsecs in size, which show no direct correlation with the presence of a stellar bar.
openaire +1 more source
Infrared Emission from Barred Spiral Galaxies [PDF]
International Astronomical Union Colloquium, 1996 AbstractAmongst relatively undisturbed spiral galaxies of type ≤ Sc barred morphology is unquestionably associated with powerful mid- and Far-IR emission. On the other hand, even amongst early type galaxies, those with LFIR/LB < 1/3 exhibit no association of high relative FIR luminosity with barred morphology, but some association of IR colors ...
Tim G. Hawarden, J. H. Huang, Q. S. Gu
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The connection between star formation and metallicity evolution in barred spiral galaxies [PDF]
, 2013 We have performed a series of chemodynamical simulations of barred disc galaxies. Our goal is to determine the physical processes responsible for the increase in the central gas-phase metallicity and of the central SFR observed in SDSS.
H. Martel, D. Kawata, S. Ellison
semanticscholar +1 more source
Dawes Review 4: Spiral Structures in Disc Galaxies [PDF]
, 2014 The majority of astrophysics involves the study of spiral galaxies, and stars and planets within them, but how spiral arms in galaxies form and evolve is still a fundamental problem. Major progress in this field was made primarily in the 1960s, and early
Baba, Junichi, Dobbs, Clare
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CO OBSERVATIONS OF BARRED SPIRAL GALAXIES [PDF]
Journal of The Korean Astronomical Society, 2006 We present the results of a highly sensitive ( mK rms) survey toward the central parts of 22 barred spiral galaxies in line using the NRAO 12m telescope at Kitt Peak. Seven of the target galaxies were detected in CO; NGC 3686 has been detected with CO for the first time. We estimated central CO fluxes of and molecular gas masses of for those galaxies.
Min-Young Lee +3 more
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Bar-driven Transport of Molecular Gas to Galactic Centers and Its Consequences [PDF]
, 1999 We study the characteristics of molecular gas in the central regions of spiral galaxies on the basis of our CO(J=1-0) imaging survey of 20 nearby spiral galaxies using the NRO and OVRO millimeter arrays. Condensations of molecular gas at galactic centers
Arimoto N. +18 more
core +3 more sources
The Astrophysical Journal, 2023 We analyze TYPHOON long-slit-absorption line spectra of the starburst barred spiral galaxy NGC 1365 obtained with the Progressive Integral Step Method covering an area of 15 kpc ^2 .
Eva Sextl +8 more
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