Results 101 to 110 of about 4,067 (216)
The Astrophysical JournalRecent theoretical work and targeted observational studies suggest that filaments are sites of galaxy preprocessing. The aim of the WISESize project is to directly probe galaxies over the full range of environments to quantify and characterize extrinsic ...
Kim Conger +16 more
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Mapping the dynamics, star-formation rates, and chemical properties of galaxies with integral field spectroscopy [PDF]
, 2005 Major advances in the development of instruments for eight and ten meter class telescopes are revolutionising our understanding of galaxy formation. In particular, Integral Field Spectrographs (which produce a three dimensional {x, y, velocity) map of a ...
Swinbank, Anthony Mark +1 more
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The Vertical Metallicity Gradient of the Galactic Disk for Mono-age Stellar Populations in LAMOST
The Astrophysical JournalThe vertical metallicity gradient of the Galactic disk offers valuable insights into the disk’s formation and chemical evolution over time. We utilized the Large Sky Area Multi-Object Fibre Spectroscopic Telescope low-resolution spectral young stellar ...
Gaohuan Long +5 more
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Proceedings of the International Astronomical Union, 2009 AbstractWe review our knowledge about the spiral structure of the disk of our Galaxy using tracers of star formation. These tracers reveal a 4-arm picture of the Galaxy.
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The Astrophysical JournalAccretion disks are highly unstable to magnetic instabilities driven by shear flow, where classically, the axisymmetric, weak-field magnetorotational instability (MRI) has received much attention through local WKB approximations.
Nicolas Brughmans +2 more
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Retarded Gravity in Disk Galaxies
SymmetryDisk galaxies have a typical dimension of a few tens of kiloparsecs. It follows from the theory of general relativity that any signal originating from the galactic center will be noticed at the outskirts of the galaxy only tens of thousands of years later.
Yuval Glass +2 more
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Formation and evolution of galaxy disks
, 2008 These are the proceedings of the international conference “Formation and Evolution of Galaxy Disks” organized by the Specola Vaticana (the Vatican Observatory). The meeting hosted 198 participants from 26 countries.
Funes, J. G., Corsini, ENRICO MARIA
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The Astrophysical Journal, 1988 Correlated supernovae from an OB association create a superbubble: a large, thin, shell of cold gas surrounding a hot pressurized interior. Because supernova blast waves usually become subsonic before reaching the walls of the shell or cooling radiatively, the energy input from supernovae may be reasonably approximated as a continuous luminosity. Using
Mordecai-Mark Mac Low, Richard McCray
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A Turbulent Framework for Star Formation in High-redshift Galaxies
The Astrophysical JournalObservations of distant galaxies suggest that the physics of galaxy formation at high redshifts differs significantly from later times. In contrast to large, steady disk galaxies like the Milky Way, high-redshift galaxies are often characterized by ...
Guochao Sun +2 more
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Abundances and ages of the deconvolved thin/thick disks of the Galaxy.
, 2004 To appear in Chemical Abundances and Mixing in Stars in the Milky Way Galaxy and its Satellites, ESO Astrophysics Symposia, ed. L. Pasquini & S. Randich (Springer-Verlag Press)We have investigated the abundance of several chemical elements in two large ...
Soubiran, C., Girard, Pascal
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