225 citations · 767 across the 18 of their papers we have counts for
18 papers
A new method to estimate local pitch angles in spiral galaxies: Application to spiral arms and feathers in M81 and M51
Ivânio Puerari, Bruce G. Elmegreen, David L. Block
We examine m IRAC images of the grand design two-arm spiral galaxies M81 and M51 using a new method whereby pitch angles are locally determined as a function of scale and posit…
Georges Lemaitre and Stiglers Law of Eponymy
David L. Block
One of the greatest discoveries of modern times is that of the expanding Universe, almost invariably attributed to Hubble (1929). What is not widely known is that the original trea…
The Large Magellanic Cloud: A power spectral analysis of Spitzer images
Ivanio Puerari, David L. Block, Bruce G. Elmegreen +1
We present a power spectral analysis of Spitzer images of the Large Magellanic Cloud. The power spectra of the FIR emission show two different power laws. At larger scales (kpc) th…
ISM properties in hydrodynamic galaxy simulations: Turbulence cascades, cloud formation, role of gravity and feedback
Frederic Bournaud, Bruce G. Elmegreen, Romain Teyssier +2
We study the properties of ISM substructure and turbulence in hydrodynamic (AMR) galaxy simulations with resolutions up to 0.8 pc and 5x10^3 Msun. We analyse the power spectrum of…
A Two-Component Power Law Covering Nearly Four Orders of Magnitude in the Power Spectrum of Spitzer Far-Infrared Emission from the Large Magellanic Cloud
D. L. Block, I. Puerari, B. G. Elmegreen +1
Power spectra of Large Magellanic Cloud (LMC) emission at 24, 70 and 160 microns observed with the Spitzer Space Telescope have a two-component power-law structure with a shallow s…
Do Bars Drive Spiral Density Waves?
R. J. Buta, J. H. Knapen, B. G. Elmegreen +5
We present deep near-infrared K_s-band AAT IRIS2 observations of a selected sample of nearby barred spiral galaxies, including some with the strongest known bars. The sample covers…