Results 21 to 30 of about 528 (137)
Spiral Galaxies as Chiral Objects? [PDF]
Astrophysics and Space Science, 2006 Spiral galaxies show axial symmetry and an intrinsic 2D-chirality. Environmental effects can influence the chirality of originally isolated stellar systems and a progressive loss of chirality can be recognised in the Hubble sequence. We point out a preferential modality for genetic galaxies as in microscopic systems like aminoacids, sugars or neutrinos.
CAPOZZIELLO, SALVATORE, LATTANZI A.
openaire +5 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 +2 more sources
The profiles of bars in spiral galaxies
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We present an analysis of major-axis surface-brightness profiles of bars in a volume-limited sample of 182 barred spiral galaxies, using Spitzer 3.6 $\mu$m images. Unlike most previous studies, we use the entire bar profile, and we classify profiles into four categories.
Peter Erwin +2 more
openaire +3 more sources
THE OPACITY OF SPIRAL GALAXY DISKS [PDF]
, 2007 The opacity of foreground spiral disks can be probed from the number of distant galaxies seen through them. To calibrate this number for effects other than the dust extinction, Gonzalez et al. (1998) developed the "Synthetic Field Method". A synthetic field is an extincted Hubble Deep Field added to the science field.
Holwerda, Benne W. +3 more
openaire +1 more source
Gravitational Lensing by Spiral Galaxies [PDF]
The Astrophysical Journal, 1998 27 pages, 7 postscript figures, submitted to ...
Keeton, C. R., Kochanek, C. S.
openaire +2 more sources
Kinematically lopsided spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 6 pages, accepted for ...
Swaters, RA +3 more
openaire +3 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 +3 more sources
Spiral Structure of Our Galaxy and of Other Galaxies [PDF]
Symposium - International Astronomical Union, 1970 Time and again Dr. B. Bok publishes his reviews on the state of optical searches of the spiral arms in our Galaxy. A great optimist at the beginning, concerning the agreement of different results, he became later more critical in his conclusions. But in his paper of 1967 he claims anew, as well established, that we can trace the spiral arms up to a ...
openaire +1 more source
Advanced Robotics Research, EarlyView.Flexible surgical robots are advancing minimally invasive interventions for cardiovascular diseases and cancer by enabling precise navigation through complex, submillimeter anatomical pathways. This review highlights recent innovations in actuation, bio‐integrated sensing, AI‐assisted control, and friction‐reduction technologies, discusses current ...
Hermione Truong +14 more
wiley +1 more source
The local galaxy density and the bars of spiral galaxies
The Astrophysical Journal, 1993 23 pages, LaTeX, SISSA Ref.
GIURICIN G +3 more
openaire +3 more sources