10.9k citations
- National Institute for Theoretical PhysicsZA13 papers
- Argonne National LaboratoryUS8 papers
- Hampton UniversityUS8 papers
- A. Alikhanyan National LaboratoryAM7 papers
- Mississippi State UniversityUS7 papers
- Thomas Jefferson National Accelerator FacilityUS7 papers
- University of Maryland, College ParkUS7 papers
- University of ReginaCA7 papers
- University of VirginiaUS7 papers
- Florida International UniversityUS6 papers
- National Institute of Astrophysics, Optics and ElectronicsMX6 papers
- Stellenbosch UniversityZA6 papers
8 papers · 1 filter
Variation of Galactic Bar Length with Amplitude and Density as Evidence for Bar Growth over a Hubble Time
Bruce G. Elmegreen, Debra Meloy Elmegreen, Johan H. Knapen +3
K_s-band images of 20 barred galaxies show an increase in the peak amplitude of the normalized m=2 Fourier component with the R_25-normalized radius at this peak. This implies that…
Keck spectroscopy and Spitzer Space Telescope analysis of the outer disk of the Triangulum Spiral Galaxy M33
David L. Block, Francoise Combes, Ivanio Puerari +11
In an earlier study of the spiral galaxy M33, we photometrically identified arcs or outer spiral arms of intermediate age (0.6 Gyr - 2 Gyr) carbon stars precisely at the commenceme…
An almost head-on collision as the origin of two off-centre rings in the Andromeda galaxy
D. L. Block, F. Bournaud, F. Combes +6
The unusual morphology of the Andromeda Spiral (Messier 31, the closest spiral galaxy to the Milky Way) has long been an enigma. Although regarded for decades as showing little evi…
Fourier Dissection of Early-Type Galaxy Bars
R. Buta, E. Laurikainen, H. Salo +2
This paper reports on a near-infrared survey of early-type galaxies designed to provide information on bar strengths, bulges, disks, and bar parameters in a statistically well-defi…
The Near-infrared S0 Survey III: Morphology of 15 Southern Early-type Disk Galaxies
E. Laurikainen, H. Salo, R. Buta +3
Structural analysis has been performed for a sample of 15 Southern early-type disk galaxies, mainly S0s, using high resolution -band images. The galaxies are mostly barred and…
Probing Kolmogorov turbulence beyond the Magellanic Clouds: The Power of Southern Hemisphere's largest optical telescope (11m), SALT
D. L. Block, B. G. Elmegreen, D. M. Elmegreen +1
The Hubble classification scheme of galaxies is based on blue-light appearance. Atlases reveal the rich variety of responses of the Population I component (`the mask') of gas and d…