Results 31 to 40 of about 72,059 (265)
Kinematically lopsided spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 6 pages, accepted for ...
T. S. van Albada +3 more
openaire +5 more sources
SpArcFiRe: Enhancing Spiral Galaxy Recognition Using Arm Analysis and Random Forests
Galaxies, 2018 Automated quantification of galaxy morphology is necessary because the size of upcoming sky surveys will overwhelm human volunteers. Existing classification schemes are inadequate because (a) their uncertainty increases near the boundary of classes and ...
Pedro Silva +2 more
doaj +1 more source
The first detection of Far-Infrared emission associated with an extended HI disk. The case of NGC 891 [PDF]
, 2003 Spiral galaxies in the Local Universe are commonly observed to be embedded in extended disks of neutral hydrogen - the so called ``extended HI disks''.
Alton +38 more
core +1 more source
Symposium - International Astronomical Union, 1970 We point out some properties of barred spiral galaxies which are important for the theory of their formation and spiral structure, and describe some theoretical work on the dynamics of these systems.
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Molecular Clouds in Spiral Galaxies [PDF]
Symposium - International Astronomical Union, 1983 A large observational program investigating the 2.6 mm CO line in spiral galaxies is being conducted by myself and Nick Scoville using the 14 m telescope of the Five College Radio Astronomy Observatory (HPBW = 50″). Thus far we have observed 46 galaxies of types Sa, Sb, Sc and Irr, detected 31, and mapped 16.
Judith S. Young, Nick Z. Scoville
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Discovery of a Nearby Low-Surface-Brightness Spiral Galaxy [PDF]
, 1998 During the course of a search for compact, isolated gas clouds moving with anomalous velocities in or near our own Galaxy (Braun and Burton 1998 A&A, in press), we have discovered, in the data of the Leiden/Dwingeloo survey (Hartmann and Burton 1997 ...
C. G. Hoopes +11 more
core +2 more sources
, 2023 Our vision of galaxies has changed significantly since the era of large galaxy surveys like the Sloan, which gave us extensive statistics with millions of galaxies. The Hubble sequence classification described in Chapter 1 still remains very widely used but has been enriched with broad categories based on color that indicate the recent formation of ...
openaire +2 more sources
The HI Halo of Spiral Galaxies
Astrophysics and Space Science, 2004 The results of observational studies on the vertical HI density distribution and kinematics of the disks of spiral galaxies are reported and discussed. Attention is drawn to the presence of HI emission, unknown before and here referred to as the `beard', which has anomalous structure and kinematics, different from the known cold HI disk. This component
Gustaaf van Moorsel +3 more
openaire +6 more sources
The optical polarization of spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2000 Scattering of starlight by dust, molecules and electrons in spiral galaxies will produce a modification of the direct intensity and a polarization in the observed light. We treat the case where the distribution of scatterers can be considered to be optically thin, and derive semi-analytic expressions for the resolved intensity and polarized intensity ...
Edouard Audit, John F. L. Simmons
openaire +4 more sources
Nuclear Spirals in Galaxies [PDF]
, 2008 6 pages, 4 figures, to appear in ""Mapping the Galaxy and Nearby Galaxies", Eds. K. Wada and F.
openaire +3 more sources