1 citations
7 papers
Planetary Nebulae in NGC 5128 (Centaurus A)
Eric W. Peng, Holland C. Ford, Kenneth C. Freeman
The study of planetary nebulae (PNe) in the nearby post-merger elliptical galaxy NGC 5128 (Cen A) now has a history of nearly twenty years. As the nearest giant elliptical, it is a…
Local redshift surveys and galaxy evolution
Roberto De Propris, Matthew Colless, Darren Croton
We present observations of galaxy environmental dependencies using data from the 2dF Galaxy Redshift Survey. From a combined analysis of the luminosity function, Butcher-Oemler eff…
An HI census of Loose Groups of Galaxies
D. J. Pisano, David G. Barnes, Brad K. Gibson +3
We present results from our Parkes Multibeam HI survey of 3 loose groups of galaxies that are analogous to the Local Group. This is a survey of groups containing only spiral galaxi…
Clustering studies with the 2dF galaxy redshift survey
Warrick Couch, Matthew Colless, Roberto De Propris
The 2dF Galaxy Redshift Survey has now been completed and has mapped the three-dimensional distribution, and hence clustering, of galaxies in exquisite detail over an unprecedented…
New generations of stellar model atmospheres
Martin Asplund
Stellar model atmospheres form the basis for any element abundance determination and hence are crucial ingredients for studies of stellar, galactic and cosmic evolution. With recen…
Radiative transfer in 3D model stellar atmospheres
Martin Asplund, Remo Collet
Recently 3D hydrodynamical simulations of stellar surface convection have become feasible thanks to advances in computer technology and efficient numerical algorithms. Available ob…