Results 51 to 60 of about 544,702 (285)
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
Ram pressure stripping of the multiphase ISM and star formation in the Virgo spiral galaxy NGC 4330 [PDF]
, 2011 It has been shown that the Virgo spiral galaxy NGC 4330 shows signs of ongoing ram pressure stripping in multiple wavelengths: at the leading edge of the interaction, the Halpha and dust extinction curve sharply out of the disk; on the trailing side, a ...
B. Vollmer +20 more
semanticscholar +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.
openaire +2 more sources
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
openaire +3 more sources
DETECTION OF A HOT GASEOUS HALO AROUND THE GIANT SPIRAL GALAXY NGC 1961 [PDF]
, 2011 Hot gaseous halos are predicted around all large galaxies and are critically important for our understanding of galaxy formation, but they have never been detected at distances beyond a few kpc around a spiral galaxy.
Michael E. Anderson, J. Bregman
semanticscholar +1 more source
Gravitational Lensing by Spiral Galaxies [PDF]
The Astrophysical Journal, 1998 27 pages, 7 postscript figures, submitted to ...
Charles R. Keeton +1 more
openaire +4 more sources
The large scale magnetic field structure of the spiral galaxy NGC 5775 [PDF]
, 2011 In order to better determine the large-scale 3D-structure of magnetic fields in spiral galaxies we present a Faraday rotation analysis of the edge-on spiral galaxy NGC 5775.
M. Soida +3 more
semanticscholar +1 more source
Quantifying the fine structures of disk galaxies with deep learning:Segmentation of spiral arms in different Hubble types [PDF]
, 2021 Spatial correlations between spiral arms and other galactic components such as giant molecular clouds and massive OB stars suggest that spiral arms can play vital roles in various aspects of disk galaxy evolution. Segmentation of spiral arms in disk galaxies is therefore a key task to investigate these correlations.
arxiv +1 more source
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
XMM-NEWTON DETECTS A HOT GASEOUS HALO IN THE FASTEST ROTATING SPIRAL GALAXY UGC 12591 [PDF]
, 2011 We present our XMM-Newton observation of the fastest rotating spiral galaxy UGC 12591. We detect hot gas halo emission out to 80 kpc from the galaxy center, and constrain the halo gas mass to be smaller than 4.5 × 1011 M☉. We also measure the temperature
X. Dai +3 more
semanticscholar +1 more source