Results 21 to 30 of about 2,487 (263)
Galaxy Zoo: finding offset discs and bars in SDSS galaxies★ [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We use multi-wavelength SDSS images and Galaxy Zoo morphologies to identify a sample of $\sim$$270$ late-type galaxies with an off-centre bar. We measure offsets in the range 0.2-2.5 kpc between the photometric centres of the stellar disc and stellar bar.
Kruk, Sandor J. +11 more
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Sersic properties of disc galaxy mergers [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 Sersic parameters characterising the density profiles of remnants formed in collision-less disc galaxy mergers are obtained; no bulge is included in our simulations. For the luminous component we find that the Sersic index is n ~ (1.5,5.3) with ~ 3 +/- 1 and an effective radius of R_e ~ (1.6,12.9) kpc with ~ 5 +/- 3 kpc.
Aceves, H., Velazquez, H., Cruz, F.
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The contribution of the dark matter to the rotation of spiral galaxies and its mass distribution [PDF]
Serbian Astronomical Journal, 1999 The rotation of a test spiral galaxy with two contributors - the disc and the corona - is considered. The disc is exponential, whereas the corona is the dark subsystem. For the latter several variants of mass distribution are considered.
Ninković S.
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Internal extinction of disc galaxies [PDF]
AIP Conference Proceedings, 1997 Traditionally, it is has been believed that extinction effects due to dust within the interstellar medium of external galaxies are rather small and can be largely ignored. Over the last 10 years however, considerable doubt has been cast over the evidence to support this comfortable idea and it became clear that a more detailed analysis was required ...
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Radiative transfer in disc galaxies -- III. The observed kinematics of dusty disc galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 14 pages, 6 figures, accepted for publication in ...
Baes, M. +8 more
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The LISA-Taiji Network: Precision Localization of Coalescing Massive Black Hole Binaries
Research, 2021 We explore a potential LISA-Taiji network to fast and accurately localize the coalescing massive black hole binaries. For an equal-mass binary located at redshift of 1 with a total intrinsic mass of 105M⊙, the LISA-Taiji network may achieve almost four ...
Wen-Hong Ruan +4 more
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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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Dynamical friction in disc galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1993 The force of dynamical friction on a softened point mass moving in a circular orbit inside a particle disc is studied theoretically and by means of numerical simulations. We derive an improved analytic estimate of the dynamical friction taking into account the effects of corotation and Lindblad resonances.
K. J. Donner, B. Sundelius
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ZIRCONIUM ABUNDANCES IN THE CENTRAL PART OF THE dSph FORNAX GALAXY
Odessa Astronomical Publications, 2017 We derived LTE zirconium abundance in a sample of 81 giant stars in dwarf spheroidal Fornax galaxy. The LTE synthesis was used for this aim. We obtained the lower Zr abundance in Fornax galaxy comparing to the relevant value in the thick/thin disc of the
S. M. Andrievsky +3 more
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Stellar discs in massive galaxies [PDF]
Proceedings of the International Astronomical Union, 2012 Excluding those unsettled systems undergoing mergers, bright galaxies come in two flavours: with and without discs. In this work we look for photometric evidence for presence of discs and compare it with kinematic results of the ATLAS3D survey (Cappellari et al. 2011).
Krajnović, D. +20 more
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