Results 171 to 180 of about 451,169 (273)
Radiative transfer problem in dusty galaxies: photometric effects of dusty spiral arms [PDF]
, 2007 D. Semionov +3 more
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Supernovae and molecular clouds in spiral galaxies
, 2001 We report N-body simulations of the birthrate and distribution of supernovae in spiral galaxies. The simulations assume that stars form in GMCs with mass greater than 10(5) Mcircle dot and that a Miller-Scalo IMF results.
Song, GX +4 more
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Polarimetric Observations of Spiral Galaxies
Publications of the Astronomical Society of the Pacific, 1967 The extragalactic systems NCC 3031, NCC 4594, NGC 5194, and NGC 5457 have been observed polarimetrically. Linear polarization between 0.1 and 1.0 percent was detected in the spiral arms of all four galaxies. The planes of vibration indicate that reflection as well as interstellar absorption of starlight by the internal dust clouds of the observed ...
openaire +1 more source
مجلة بغداد للعلومAmong the most important ways to investigate galaxies' distribution over cosmic time is the luminosity function LF in terms of baryonic disc mass ψS(Mb), magnitude .
Al Najm M.N. +2 more
doaj +1 more source
Dynamics in a Lopsided Spiral Galaxy: Negative Disk Response to Perturbation Halo Potential [PDF]
, 1999 Chanda J. Jog
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Analysis of VLBI Spot Map of H20 Masers for the HII Region Complex IC133 of Spiral Galaxy M33 [PDF]
, 1996 Yu Zhi-yao
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The formation of molecular clouds in spiral galaxies
, 2007 Molecular clouds are imperative to astronomy as the sites of all known star formation. The problem of how molecular clouds are formed in spiral galaxies is approached numerically, by modelling the response of a gas disk to a spiral potential.
Dobbs, Clare L.
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Radial Distributions of Star Formation and Gas-phase Metallicity in Spiral–Elliptical Galaxy Pairs
The Astrophysical JournalUsing integral-field spectroscopy from the fourth-generation Sloan Digital Sky Survey Mapping Nearby Galaxies at Apache Point Observatory, we investigate the radial distributions of the star formation rates (SFRs) and gas-phase metallicities in spiral ...
Cailu Shi +5 more
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Conditions for Bar Formation in Bulgeless Disk Galaxies
The Astrophysical JournalWhile bars are commonly observed in disk galaxies, the precise conditions governing their formation remain incompletely understood. To investigate these conditions, we perform a suite of N -body simulations of bulgeless disk galaxies with stellar masses ...
Dajeong Jang, Woong-Tae Kim, Yun Hee Lee
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